2022년 · Open Access · 27편
Aesthetic Nonexcisional Arm Contouring.
Ibrahiem SMS ·Aesthetic surgery journal ·2022 ·cited 13
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Background/Objectives: "Ozempic face" is an aesthetic side effect associated with the use of the antidiabetic agent Ozempic (semaglutide), characterized by a prematurely aged and fatigued facial appearance due to rapid weight loss. Currently, treatment options for this condition are limited. In this study, we present our clinical experience with the BodyTite device, provided by InMode Italy S.r.l. (Rome, Italy). Materials and Methods: We report a case series involving 24 patients (19 women and 5 men, aged 27-65 years), treated with subdermal bipolar radiofrequency (Endotissutal Bipolar Radiofrequency) between 2023 and 2024. All patients underwent a minimum follow-up of 12 months. At the end of the follow-up period, patients rated their satisfaction on a from 0 to 10 scale, and an independent expert assessed the stability of clinical outcomes. Results: The majority of patients reported high satisfaction levels (≥8), which correlated with the independent expert's evaluation of treatment efficacy and result stability. The only observed adverse event was transient cutaneous erythema. Conclusions: "Ozempic face" is an increasingly common side effect associated with newer classes of antidiabetic medications. Although these drugs offer significant metabolic benefits, the accompanying facial volume loss and aging are often poorly tolerated by patients. Our findings suggest that subdermal bipolar radiofrequency represents a safe, low-risk, and cost-effective therapeutic option for the aesthetic management of Ozempic face. Radiofrequency-based devices are used frequently in plastic surgery procedures. In the current literature, no comparative experimental study has demonstrated the histologic and immunologic effects of these devices, which are used frequently in the facial area. In this study, the authors investigated the histologic and immunologic effects of bipolar radiofrequency (BodyTite) and microneedle radiofrequency (Morpheus 8) devices in the rat abdominal region. A total of 24 rats were used in this study. The rats were divided into 4 groups: controls (group 1), BodyTite applied to the abdominal region (group 2), Morpheus 8 applied to the abdominal region (group 3), and both Morpheus 8 and BodyTite applied to the abdominal region (group 4). The histologic and immunologic features of the tissues, collagen formation, and desmosome structures were examined using light microscopy. Collagens in group 2 were thinner than those in the other groups. In addition, there were fewer vessels in group 3. The collagen scores were as follows: group 2, 1.5; group 3, 2; and group 4, 3. Vascular endothelial growth factor scores were 2.5 in group 2, 2 in group 3, and 3 in group 4. The collagen score in group 2 and vascular endothelial growth factor score in group 3 were significantly lower than in the other groups. In addition, the bonds between desmosomes in group 3 were found to be looser using electron microscopy. Collagen morphology in groups 3 and 4 was found to be similar to that in group 1. Radiofrequency-based devices increased tissue regeneration and healing. The use of radiofrequency devices has increased in plastic surgery practice over the past 2 decades, particularly emerging as a unique alternative for nonsurgical candidates. There is a lack of experimental studies concerning these devices, which are commonly used in clinical practice. In his practice, the author has been using noninvasive devices, including Evolve X-radiofrequency-based procedure for tightening of the skin, melting of the subdermal fat deposits and muscle stimulation, all done simultaneously together and truSculpt flex-electrical muscle stimulation. Minimally invasive procedures include BodyTite, FaceTite, and AccuTite, radiofrequency-based procedures for permanent fat destruction and tightening of the skin. Morpheus8 and Morpheus8 Body are radiofrequency based-procedures for tightening of the skin. VASERlipo is an ultrasound-based procedure for liposuction and muscle definition. Vibrational type of liposuction has been used for the purpose of liposuction and muscle definition in combination with VASERlipo. Axillary breast tissue includes any combination of fat, nipple, areolae, and glandular tissue alongside breasts and affects 2%-6% of women and 1%-3% of men. Patients may experience functional and/or cosmetic concerns due to axillary breast tissue. There are nonsurgical options for its removal, such as CoolSculpting and Kybella, and surgical options such as liposuction, BodyTite liposuction, and excision. Determining which technique to use in each case is critical in achieving an excellent outcome. Currently, there are no established treatment algorithms for the removal of axillary breast tissue. A retrospective review between January 1, 2013, and June 20, 2022, was performed. Data that were extracted included age, BMI, date of procedure, procedure, fat suctioned, tissue excised, and follow-up period. The authors analyzed outcomes and formulated a treatment algorithm based on tissue type (fat versus glandular), amount of tissue excess, skin laxity, and accessory nipple presence. A total of 43 patients (83 axillae) met our inclusion criteria and were included in our analysis. All patients were female with a mean age of 35.5 ± 10.9 years, a mean BMI of 23.0 ± 3.1, and a mean follow-up period of 8.8 ± 11.1 months. For inclusion, patients had to have undergone CoolSculpting, liposuction, BodyTite liposuction, liposuction with excision, or excision alone. All patients tolerated the procedures well and reported no serious complications. Nonsurgical and surgical removal of axillary breast tissue is safe and effective. The algorithm presented can be utilized by plastic and reconstructive surgeons to ensure optimal results for axillary breast tissue removal. Body contouring surgery is increasingly requested by patients, both for aesthetic and post-bariatric purposes. There has also been a rapid increase in demand for noninvasive aesthetic treatments. While brachioplasty is burdened by numerous complications and unsatisfactory scars, and conventional liposuction is unsuitable for all patients, nonsurgical arm remodeling performed with radiofrequency-assisted liposuction (RFAL) allows to effectively treat most of patients, regardless of the amount of fat and ptosis of the skin and avoiding surgical excision. A prospective study was conducted on 120 consecutive patients who presented to the author's private clinic and required upper arm remodeling surgery for aesthetic purposes or after weight loss. Patients were classified according to the modified classification of El Khatib and Teimourian. Pre- and posttreatment upper arm circumferences were taken after 6 months of follow-up to assess the degree of skin retraction obtained by treating the arm with RFAL. A satisfaction questionnaire regarding the appearance of the arms (Body-Q upper arm satisfaction) was administered to all patients before surgery and after 6 months of follow-up. All patients were effectively treated with RFAL, and no cases required conversion to brachioplasty. The average reduction in arm circumference was 3.75 cm at 6 months follow-up, and patients' satisfaction increased from 35 to 87% posttreatment. Radio frequency is a valid tool to treat most patients with upper limbs skin laxity, with significant aesthetic results and a high degree of patient satisfaction, regardless of the degree of skin ptosis and lipodystrophy of the arm. This journal requires that authors assign a level of evidence to each article. For a full description of these evidence-based medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 . Breast ptosis as a result of pregnancy and/or breastfeeding, age, genetics, and weight loss is a common complaint among women visiting a plastic surgeon. This study sought to ev
DOI: 10.1093/asj/sjac031 논문 보기 Employing microbotox technique for facial rejuvenation and face-lift.
Iranmanesh B, Khalili M, Mohammadi S et al. ·Journal of cosmetic dermatology ·2022 ·cited 11
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Following Nonablative fractional Fraxel laser (NAFL), a well-established treatment for skin rejuvenation, immediate post-procedural care is essential to address any potential complications and accelerate the healing process. To evaluate the efficacy and patient satisfaction of a topical skincare regimen containing vitamin C, vitamin E, and ferulic acid-CE Ferulic serum (CEF) following NAFL treatment in the Chinese population. In this randomized, investigator-blinded, split-face, controlled trial, patients with mild-to-moderate facial photodamage were randomized to receive CEF treatment on one side of the face and normal saline (NS) on the other side immediately after the NAFL procedure and daily during the 7-day follow-up. The primary endpoint was the change from baseline in erythema score on Day 7, with key secondary endpoints including changes from baseline in erythema index (EI), melanin index (MI), transepidermal water loss, skin hydration, skin sebum content, scabbing, edema, overall patient satisfaction, and post-procedure pain. In total, 50 patients (female 45/50) were enrolled in this study, with a mean age of 31.6 years. The mean change from baseline in erythema score was significantly lower on the CEF side than on the NS side on Day 7 post-NAFL treatment (0.04 ± 0.40 vs. 0.18 ± 0.48, p = 0.011). The CEF side also exhibited improved changes in EI, MI, and skin hydration, as well as higher overall satisfaction and less pain compared with the NS side. Applying CEF after NAFL treatment reduced erythema progression, maintained skin hydration, and promoted the healing process compared with NS. Chinese Clinical Trial Registry: ChiCTR2300069246. Multicentric Castleman's disease (MCD) with cutaneous involvement has rarely been discussed in dermatologic literature, with few reports. Cutaneous lesions in MCD may induce deep scars, causing a significant impact in the daily life of the patients. The treatment of Castleman's disease (CD) is usually a challenge, especially in case of cutaneous involvement. We report the case of a 35-year-old Caucasian man with a 3-year-old history of MCD with cutaneous involvement that we treated with a combined therapy characterized by siltuximab and 1,927 nm fractional laser. The patient showed a therapeutic response, characterized by a reduction of systemic symptoms and cutaneous manifestations. We believe that the combination of siltuximab and 1,927 nm fractional laser might have a synergistic beneficial role in patients with cutaneous iMCD and maximize esthetic outcomes. Anyway, additional evidence is needed to validate our findings. Microbotox technique, intradermal injection of microdroplets of botulinum toxin, is a favorable rejuvenation approach in subjects who prefer more natural appearance. To determine the best injection techniques (dosage, concentration, as well as number and location of injection points), efficacy and side effects of this innovative technique for facial rejuvenation. We conducted a search in Pubmed, Embase, Web of Science, and Google Scholar databases from conception until October 2021 with keywords "microbotox" OR "mesobotox" OR "intradermal injection" AND "botulinum toxin" AND "rejuvenation" AND "wrinkle" AND "face-lift." Twenty articles were included in this review article. Different types of formulation including onabotulinum toxin A (OBA), abobotulinum toxin A (ABO), and incobotulinum toxin A (IBA) were used. The most used concentrations were 10-20 u/cc of OBA. Number of injection points varied from 4 (forehead and periorbital areas) to 999 (entire face) with 2 mm to 2 cm apart. Adjuvant treatment modalities were cross-linked hyaluronic acid, intense pulsed laser, and Fraxel laser. Most studies reported the initial results appeared after 5-14 days of procedure, lasting for nearly 3-6 months. Microbotox is an efficient and attractive method for facial rejuvenation, mid-lower face-lifting, and fine wrinkles reduction in forehead, periocular, and cheek regions, especially in younger-aged subjects. Furthermore, it is a suitable treatment for neck rejuvenation and recontouring of lower mandibular border, particularly in older subjects with marked skin laxity. The Fraxel Dual laser system (Solta Medical, Inc., Bothell, WA) contains a 1,550 and 1,927 nm wavelength single handpiece with different indications for each wavelength. To discuss treatment setting recommendations and best practices for select on-label and investigational applications of the 1,550 and 1,927 nm dual laser system. Eight board-certified dermatologists with 10 or more years of experience with the 1,550 and 1,927 nm laser system completed an online survey about their clinical experience with the system and then participated in a roundtable to share clinical perspectives and best practices for using the laser system. For all Fitzpatrick skin types, treatment recommendations were described for selected approved indications for the 1,550 and 1,927 nm laser system, including both lasers in combination. Treatment recommendations were also reached for investigational applications with the 1,550 nm laser and 1,927 nm laser. Best practices for using the lasers during the treatment session to achieve optimal outcomes and decrease the post-treatment recovery time were compiled. The 1,550 and 1,927 nm dual laser system is effective for a wide range of aesthetic and therapeutic applications, on and off the face and across all Fitzpatrick skin types. Following our survey, we can appreciate that a variety of laser platforms exist to rejuvenate the skin by resurfacing the outer layer of the skin as well as heating the lower layers of the dermis. Based on reliable clinical effectiveness and a limited side effect profile, we can confirm that nonablative fractionated technologies greatly improve the appearance of lentigines, rhytids; eliminate sun damage, attenuate scarring due to acne and other causes; and treat hyperpigmentation. The Fraxel (Solta Medical) laser system delivers pulses across a wide range of density and energy levels. We determined that when increasing the pulse energy this led to an increase in thermolysis microzone depth and width without damaging the surrounding tissue. Due to its performance and various clinical applications, Fraxel laser can be optimally considered to be the gold standard for skin rejuvenation. Sebaceous hyperplasia (SH) is a common skin presentation in adults. Due to their unwanted yellow papular appearance, patients may desire their removal. Although several treatment modalities have been reported, the full range and efficacy of options are unclear. To determine the efficacy of laser modalities in the treatment of SH. The authors will also specifically assess the efficacy, recurrence rate and side effect profile of SH treatment with Er:YAG wavelength using a variable long pulsed (VLP) Er:YAG laser (SP Dynamis Fotona laser, Ljubljana, Slovenia) Methods & Materials: A comprehensive literature search was performed through PubMed, EMBASE, and Web of Science, using the search terms [(sebaceous hyperplasia)] and [(laser[s], Er:Yag, Er:Glass, Fraxel, CO2, PDL, Pulse dye laser, Diode, Xe-Cl, Excimer, Argon, KTP, Ruby, Alexandrite or Nd:YAG)]. The search yielded a total of 119 results and 8 were identified as relevant to this reviewResults: Pulse dye laser (PDL) provides a wide range of treatment results from complete reduction to flattening of the SH without significant adverse events; recurrence rates were unreported. Short PDL showed faster treatment response than long PDL. CO2 laser can produce considerable positive cosmetic outcomes with marked clinical improvement without any recurrence, but significant adverse effects have been reported. The 1450-nm diode laser has been described to produce good (75%) clinical improvement and lesion shrinkage ranging from 50% to greater than 75% without lasting adverse effects. In
DOI: 10.1111/jocd.14768 논문 보기 A Systematic Review of Subsurface Radiofrequency Treatments in Plastic Surgery.
Swanson E ·Annals of plastic surgery ·2022 ·cited 10
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Background: Rosacea is a chronic facial skin disease in which persistent erythema is a significant clinical problem, often resistant to standard therapies. Intensive pulsating light (IPL) has become a recognised and effective method of treating erythema and telangiectasia. The latest recommendations emphasise the advantage of combining subjective clinical assessments with objective imaging analyses in monitoring therapy effects. Methods: A total of 20 patients with rosacea qualified for this study. They were subjected to three polychromatic light procedures (Lumecca, Inmode; wavelength of 515-1200 nm) at 21-day intervals. The skin condition was documented photographically, and the degree of erythema was assessed on the basis of the Clinician Erythema Assessment (CEA) scale and objective analysis of the skin texture, using the parameters of contrast and homogeneity of the grey level co-occurrence matrix (GLCM). Results: A series of three polychromatic light treatments yielded a significant clinical improvement in all patients. The mean CEA value decreased by 61.11%, whereas the GLCM contrast in all the analysed facial areas dropped by about 17%, and homogeneity increased by 4-5%. The effects persisted for at least three months after the treatments. A high correlation of CEA scale results with GLCM parameters (R = 0.81-0.94 for contrast; R = -0.77 to -0.83 for homogeneity) was observed. Conclusions: Three polychromatic light treatments proved to be a very effective method of reducing erythema in rosacea, confirmed by both clinical evaluation and objective imaging analysis. The effects of therapy were durable and clear. Integration of the subjective method (CEA) with GLCM analysis can be a path for future research and clinical practice in the assessment of erythematous skin lesions. Background/Objectives: "Ozempic face" is an aesthetic side effect associated with the use of the antidiabetic agent Ozempic (semaglutide), characterized by a prematurely aged and fatigued facial appearance due to rapid weight loss. Currently, treatment options for this condition are limited. In this study, we present our clinical experience with the BodyTite device, provided by InMode Italy S.r.l. (Rome, Italy). Materials and Methods: We report a case series involving 24 patients (19 women and 5 men, aged 27-65 years), treated with subdermal bipolar radiofrequency (Endotissutal Bipolar Radiofrequency) between 2023 and 2024. All patients underwent a minimum follow-up of 12 months. At the end of the follow-up period, patients rated their satisfaction on a from 0 to 10 scale, and an independent expert assessed the stability of clinical outcomes. Results: The majority of patients reported high satisfaction levels (≥8), which correlated with the independent expert's evaluation of treatment efficacy and result stability. The only observed adverse event was transient cutaneous erythema. Conclusions: "Ozempic face" is an increasingly common side effect associated with newer classes of antidiabetic medications. Although these drugs offer significant metabolic benefits, the accompanying facial volume loss and aging are often poorly tolerated by patients. Our findings suggest that subdermal bipolar radiofrequency represents a safe, low-risk, and cost-effective therapeutic option for the aesthetic management of Ozempic face. Autonomic nerves and ganglia that affect bladder sensation and detrusor contractility are present below the proximal urethra and trigone. Radiofrequency energy has been shown to potentially ablate/modulate these nerves in overactive bladder (OAB) patients. In this study, we intended to establish the safety and efficacy of transvaginal radiofrequency energy delivered via a vaginal Morpheus (Inmode) microneedling device in female patients with OAB. Women with known OAB, both primary and refractory as well as urge-predominant mixed urinary incontinence, were treated in the office setting using transvaginal detrusor nerve radiofrequency ablation to a depth of 7 mm.The primary outcome was the change in urge incontinence episodes on a 3-day voiding diary at 3 months after procedure. Secondary outcomes were the following at 1 and 3 months: the change in urinary frequency and incontinence, Incontinence Impact Questionnaire-7 (IIQ-7), Urinary Distress Inventory-6 (UDI-6), and Patient's Perception of Bladder Condition (PPBC). A pain assessment was collected immediately after the procedure and a Patient Global Impression of Improvement questionnaire was collected at 3 months. From 07/2023 to 02/2024, 32 were enrolled and 31 were followed for 3 months after treatment. Episodes of urgency incontinence, IIQ-7, UDI-6, PPBC, urinary frequency, and episodes of severe urinary urgency, had statistically significant improvement. Significant Analysis of Variance (ANOVA) testing ( P  < 0.001) was encountered with the IIQ-7, UDI-6, PPBC, urinary frequency, and urgency incontinence. No adverse events were encountered. Across all outcome metrics, the transvaginal detrusor nerve radiofrequency ablation for treatment of overactive bladder showed statistically significant improvements. Background: The techniques of choice used in the treatment of extensive vascular lesions of the face are methods based on high-energy light sources, such as lasers and IPL (intense pulsed light). The techniques commonly employed to detect blood vessel abnormalities in skin primarily rely on semi-quantitative or qualitative scales. Methods: The study was conducted on a group of 38 volunteers; a series of three treatments was performed using an IPL source (Lumecca, Inmode, Israel). The vessels' response to the high-energy light was verified using the following quantitative methods: mexametric measurements, hyperspectral imaging, and directional reflectance measurements. Results: In the mexameter measurement, statistically non-significant differences were obtained in the hemoglobin content in the skin condition prior to and following multiple intense pulsed light sessions. Studies performed using a hyperspectral camera showed that at a wavelength of 580 nm, the increase in skin reflectance after the treatment was statistically significant. Total directional reflectance measurements showed that at wavelengths of 400-540 nm and 480-600 nm, following the IPL treatment, the skin reflectance increased statistically significantly. Implementing three consecutive intense pulsed light procedures appears adequate to obtain a clinically satisfactory reduction in vascular changes in the facial skin. Mexametric measurements do not enable the assessment of the reaction of blood vessels to IPL. Conclusions: Hyperspectral imaging is an effective method for the quantitative assessment of skin vascular lesions. The best results in the assessment of vascular lesions using hyperspectral imaging are obtained at wavelengths of 420 nm and 580 nm. The hemispheric directional reflectance method allows for a quick, accurate, and repeatable assessment of vascular skin changes. Surgeons and providers in aesthetic medicine seek noninvasive devices that can be utilized for safe, efficient, and effective body contouring. Patient demand has propelled the development of novel devices that can simultaneously improve skin laxity, adipolysis along with stimulation of muscle hypertrophy. To determine the efficacy of body contouring after 3 treatments using the noninvasive Transform (InMode, Lake Forest, CA) device. A prospective, multicenter study was performed. Outcomes evaluated include: standardized caliper and ultrasound measurements of abdominal skin/soft-tissue thickness, waist circumference, histologic evaluation, patient comfort, and satisfaction assessments. Forty-four patients were successfully enrolled in the study and completed the series of 3 treatments which involved combined electrical muscle stimulation (EMS) and noninvasive bipolar radiofrequency (RF). Abdominal ultrasound measurements reveal a
DOI: 10.1097/SAP.0000000000003093 논문 보기 Pixel-CO(2) laser for the treatment of stress urinary incontinence.
Nalewczynska AA, Barwijuk M, Kolczewski P et al. ·Lasers in medical science ·2022 ·cited 9
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To compare the effectiveness of pixel CO2 laser and vaginal promestriene in treating genitourinary syndrome of menopause (GSM). A quasi-randomized controlled trial was conducted with 48 patients. CO2 Laser Group (24 patients) received 3 sessions of vaginal pixel CO2 laser, and promestriene group (24 patients) used vaginal promestriene daily for 14 days, then twice weekly for 3 months and 3 weeks. Patients were evaluated before and after treatment using a visual analog scale (VAS), FSFI-6, ICIQ-SF, Vaginal Health Index (VHI), and vaginal wall biopsy. Of the 48 patients, 22 in CO2 Laser Group and 21 in promestriene group completed the study. Both groups showed significant symptom reduction by VAS, with improvements in desire, lubrication, and total FSFI-6 scores. CO2 Laser Group had greater improvements in lubrication, orgasm, and satisfaction (p<0.001). Urinary incontinence improved in both groups (p<0.01). VHI scores increased significantly in both groups (p<0.001). Biopsies revealed improvements in collagen, glycogen, vascularity, epithelial thickness, and reduced neutrophil count (p<0.01). CO2 laser appears to be a viable non-hormonal alternative for treating GSM, particularly for women unable or unwilling to use hormonal therapies. Optical coherent tomography (OCT) is an emerging non-invasive imaging technology with significant potential in fields of medicine where invasive biopsy is limited or impractical. In ophthalmology, where retinal biopsy is not possible, OCT has become a standard of care for monitoring physiologic and pathologic changes. Similarly, OCT holds promise for improving women's healthcare, particularly in areas where biopsies are not routinely performed due to anatomical, ethical, or patient comfort considerations. Genitourinary syndrome of menopause (GSM) is one such condition where OCT may provide significant clinical value. However, ethical and practical limitations often restrict the ability to perform repeated or even sporadic vaginal wall biopsies. As a result, the efficacy of new treatment modalities largely assessed through subjective patient-reported outcomes, leading to inconsistent and controversial data that hinder progress in the field. This review outlines a collaborative effort by scientists and clinicians at the University of California, Irvine, to develop a novel, non-invasive "optical biopsy" tool for external genital assessment. A dedicated system integrated within a vaginal probe was developed to combine energy-based treatment with real-time OCT imaging. The new system successfully detected differences in vaginal epithelial thickness (VET) and blood vessel density (BVD) across women of different age groups, and between different segments of the vaginal wall. The system was used to measure VET and BVD changes before and after treatment with Fractional-Pixel CO2 laser. Beyond GSM, this technology is now being applied to other vulvovaginal conditions, including vulvar lichen sclerosus (VLS). The ability to perform non-invasive real-time monitoring of tissue structure and function is a critical step forward in women's health, offering new opportunities for diagnosis, treatment, monitoring, and ultimately improving clinical outcomes. Background: Our study aims to assess Pixel CO2 laser efficacy for female stress urinary incontinence (SUI). Methods: In the study, 25 women with SUI were included and scheduled for vaginal Pixel CO2 Laser (FemiLift™, Alma Lasers, Israel) treatment. All subjects had a baseline and 6-month post-treatment assessment that included three-dimensional perineal ultrasound and validated questionnaires. Results: Data showed that monthly three-session vaginal Pixel CO2 Laser treatment significantly improved SUI symptoms, as evidenced by validated questionnaires, including UDI-6, IIQ-7, ICIQ, and vaginal laxity questionnaire (p < 0.05). The Pixel CO2 Laser efficacy in vaginal treatment was 20/25 (80%), and the perineal sonography showed that laser treatment significantly decreased bladder neck mobility and middle urethral area (during resting and straining). Permanent adverse events were not found. Conclusions: The results of our study suggested that for the treatment of mild to moderate SUI symptoms, Pixel CO2 Laser is effective and safe; however, more studies and a longer follow-up should be conducted to confirm its efficacy and durability. The aim of this study was to assess the safety and efficacy of a minimally invasive pixel-CO2 laser procedure for the treatment of stress urinary incontinence (SUI). This was a prospective, open-label study with a cohort of 59 women. Patients were treated intravaginally with a fractional/pixel CO2 laser every 4-6 weeks for a total of three treatments and assessed at 3, 6, and 12 months. Evaluation tools included a Sandvik severity score based on a validated questionnaire, 1-h pad test, vaginal health index score (VHIS), validated female sexual function index (FSFI), patient's impression of disease severity (PGI-S), global impression of improvement (PGI-I), and the short-term pelvic floor impact questionnaire (PFIQ-7) to assess improvements in quality of life. Reduction in SUI severity was noticed throughout the duration of the study, as compared to the baseline in which 2% of the patients were defined as "slight," 73% "moderate," and 25% "severe." Gradual improvement of symptoms resulted in redistribution of severity score and the best outcome observed between 3 and 6 months. Sanitary pad weight declined from an average of 35.45 g per day at baseline to 12.47 g at the 3rd treatment, and increased to 23.06 g at 12 months. Vaginal acidity changes showed a similar pattern. No serious adverse events were reported. Pixel-CO2 laser is safe and effective for treating SUI. Additional maintenance treatments should be considered during the 6-12-month post-treatment period in order to maintain the beneficial effects. Pixel-CO2 laser is a safe and effective treatment for SUI. Maintenance treatments should be considered at 6-12 months. Energy-based treatments have been found to be a promising treatment modality for improving stress urinary incontinence (SUI) symptoms. This prospective two-center study was designed to evaluate the efficacy of fractional-pixel CO2 laser for the treatment of SUI. Eighty-five women with SUI symptoms as per the cough stress test and validated International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form (ICIQ-UI-SF), were treated intravaginally with Pixel-CO2 laser. Two treatment sessions were performed with a 1-month interval. Safety and treatment tolerance were assessed by the visual analog scale (VAS) immediately and at 1 week after each laser treatment. Associations of age and body mass index (BMI) with the ICIQ-UI-SF score were statistically assessed by the Jonckheere-Terpstra test. The ICIQ-UI-SF score was 12.0 at baseline, 7.0, after the first treatment, and 3.5 after the second treatment (P = 0.001). For women with BMI (25.0-29.9), the ICIQ-UI-SF score was 9.0 at the baseline, 6.0 after 1 month, and 5.0 at the 6 months follow-up visit (P = 0.04). For women with BMI ≥ 30.0, the ICIQ-UI-SF score was reduced from 14.0 to 8.0 1 month after the baseline and 5.0 at the 6-month follow-up visit (P = 0.001). SUI severity evaluation at baseline showed that 27.1% of women had mild, 24.7% had moderate, 45.9% had severe, and 2.4% had very severe SUI symptoms. SUI severity scores were significantly reduced, with 45.8% of women with no SUI symptoms, 18.8% with mild, 20.8% with moderate, and 14.6% with severe SUI symptoms at the 6-month follow-up. The patient's evaluation of VAS after the first treatment was 1.0-1.5 (0-10) and 0.0 1 week after the second treatment. Fractional-pixel CO2 laser is safe and effective for treating SUI. No adverse event or significant pain was reported during or after the
DOI: 10.1007/s10103-021-03353-7 논문 보기 Objective Assessment of the Long-Term Volumizing Action of a Polycaprolactone-Based Filler.
Angelo-Khattar M ·Clinical, cosmetic and investigational dermatology ·2022 ·cited 9
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Forehead filler injections have become a popular nonsurgical approach to enhance facial aesthetics by correcting volume deficiencies and improving contours. This anatomy-based approach emphasizes the importance of understanding the complex structural components of the forehead, including fat compartments, muscles, and vascular pathways. Proper diagnosis of forehead depressions-categorized as central, bilateral, mixed, or total types-guides targeted treatment strategies using submuscular or subdermal injection planes. Submuscular injections provide structural support, minimizing risks associated with superficial placement, such as uneven distribution and vascular complications. Techniques tailored to specific anatomic features, particularly in East Asian patients who often present with narrower foreheads, ensure natural and balanced results. Fillers used in this paper are Hyaluronic Acid (Maili, Sinclair) and Polycaprolactone (Ellanse, Sinclair). Combining fillers with botulinum toxin injections can address both dynamic and static wrinkles, achieving comprehensive facial rejuvenation while maintaining natural expressions, which is especially true for Polycaprolactone biostimulator fillers. This integrated approach optimizes aesthetic outcomes and enhances patient satisfaction by delivering smooth, contoured, and youthful forehead appearances. Level of Evidence: Level V. Innovative use of a point-of-care ultrasound (POCUS) device facilitates the diagnosis and management of potential challenges associated with Ellanse treatment. Our case series of 6 patients illustrates the effectiveness of POCUS in managing challenges associated with Ellanse treatment. Ultrasound analysis is performed in all 6 patients, and management decisions are guided by ultrasound findings. Our case series of 6 patients (A, B, C, D, E & F) consists of Ellanse-treated patients. They presented problems associated with (1) facial overfilling, (2) diagnostic challenges, (3) underfilling requiring POCUS-guided treatment, (4) confirmation of nodule dissolution, and (5) pretreatment vascular assessment. Patients A and B presented with complaints of facial overfilling, and ultrasound analysis attributed the overfilling to previous autologous fat grafting and hyaluronic acid filler treatments respectively. Patient C complained of facial cheekbone prominence after receiving 26 mL of Ellanse in her entire face over 3 years. The patient was reassured that her cheek prominence was secondary to neocollagenesis following ultrasound analysis and refused further intervention. Patient D had successful dissolution of a nodule associated with Ellanse, and this was confirmed with photographs and POCUS imaging. Patient E had underdevelopment of collagen in the left midcheek following initial Ellanse treatment 3 months ago. 0.2 mL of additional Ellanse was injected with a 25G cannula under POCUS guidance to the left cheek with satisfactory correction. Patient F had three previous sessions of Ellanse treatments. She underwent vascular anatomy analysis with an ultrasound Doppler mode prior to the fourth Ellanse treatment. The presence of dense neocollagenesis following Ellanse can alter vascular patterns. A preprocedural analysis is recommended in planning subsequent treatment. Our limited case series of 6 patients provides useful insights into the effectiveness of POCUS as the initial imaging modality of choice when managing Ellanse-treated patients. POCUS imaging provides valuable diagnostic information (Patient A, B, C and D) and therapeutic purposes such as POCUS guided injection and pretreatment assessment (Patient D and E). POCUS can be the initial imaging modality of choice as it is convenient and allows clinical management to be made based on imaging findings. This study aimed to investigate the effects of hyaluronic acid rejuvenating complex, polycaprolactone, and their combination on skin wound healing, assessing their potential to accelerate tissue regeneration and optimize healing outcomes. Forty eight Wistar Albino rats were randomly divided into four groups. Group 1 received hyaluronic acid rejuvenating complex injection, Group 2 received polycaprolactone injection, and Group 3 received a combination of both. Group 4 served as the control, undergoing incision without intervention. Skin biopsies were collected at baseline, day 7, and day 14 postincision. Wound healing was evaluated histologically using hematoxylin and eosin (H&E) and Masson's trichrome staining, focusing on epithelial thickness, collagen synthesis, and inflammatory cell infiltration. The combination therapy group (Group 3) exhibited the most pronounced wound healing response, demonstrating significantly accelerated re-epithelialization, enhanced collagen deposition, and well-structured granulation tissue by days 7 and 14. Additionally, inflammatory cell infiltration was markedly reduced, indicating a faster transition from the inflammatory to the proliferative phase. Compared to single-agent treatments, the combined approach resulted in superior tissue remodeling and a more efficient healing process. The dual administration of hyaluronic acid rejuvenating complex and polycaprolactone offers a synergistic effect, significantly enhancing skin wound healing compared to monotherapies. These findings highlight the potential of combination therapy as a promising strategy for improving wound repair and tissue regeneration in aesthetic and regenerative dermatology. Ellanse is a polycaprolactone-based collagen stimulator that is rarely associated with the formation of palpable nodules. The current management of palpable nodules include triamcinolone injection, consumption of oral methotrexate, and surgical excision. The absence of an effective reversal agent that is safe has limited the popularity of Ellanse as a facial rejuvenation modality. This article presents a dual focus (1) a case series demonstrating the efficacy of the iCare technique in treating 10 nodules from Ellanse M treatment in three patients and (2) an experimental study investigating the in vitro and in vivo dissolution of Ellanse M aliquots. In the case series, nodules, which have persisted for an average of 2 years following initial Ellanse M treatment, are effectively managed with the iCare technique. The iCare technique of dissolution involves injecting a collagenase mixture that is five times the initial injected volume of Ellanse. The case series finding demonstrates the iCare technique as a viable solution in managing Ellanse-associated nodules. An allergy test is also conducted prior to injection of collagenase mixture to demonstrate the safety of collagenase mixture. An experiment is conducted by mixing 0.1 mL Ellanse M aliquots with 0.5 mL collagenase mixture (Slide X). Controls are provided by adding 0.5 mL of lignocaine 2% and adrenaline 1:80 000 (Slide L), 0.5 mL hyaluronidase (Slide H), 0.5 mL of 40 mg/mL of triamcinolone (Slide T) separately to 0.1 mL Ellanse M aliquots. Ellanse M is converted from a gel into a solution by collagenase mixture (X) while it is not affected by lignocaine and adrenaline (L), hyaluronidase (H), or triamcinolone (T). The conversion of Ellanse gel into a solution occurs within 5 min of adding the mixture. The case series demonstrates the iCare technique's efficacy in addressing delayed onset nodules associated with Ellanse treatment. The experimental study demonstrates in vitro and in vivo dissolution of injected Ellanse aliquots. This article offers a promising solution to significant issues associated with Ellanse treatment-namely, the formation of nodules and the lack of an effective fast-acting reversal agent. Nonsurgical rhinoplasty or rhinomodelation is a sought-after procedure in aesthetic practice. The current product of choice remains hyaluronic acid (HA) because of its ease of use and
DOI: 10.2147/CCID.S385202 논문 보기 Calibration and standardization of extracellular vesicle measurements by flow cytometry for translational prostate cancer research.
Kim Y, van der Pol E, Arafa A et al. ·Nanoscale ·2022 ·cited 8
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The levels of platelet-derived extracellular vesicles (pEVs) have been reported as elevated in acute ischemic stroke (IS). However, the results of studies remain equivocal. This prospective, case-control study included 168 patients with IS, 63 matched disease controls (DC), and 21 healthy controls (HC). Total pEVs concentration, the concentration of phosphatidylserine-positive pEVs (PS+pEVs), the percentage of PS+pEVs (%PS+pEVs) and the concentration of pEVs with expression of CD62P+, CD40L+, CD31+, and active form of GPIIb/IIIa receptor (PAC-1+) were assessed on days 1, 3, 10, and 90 with the Apogee A50-Micro flow cytometer. The concentrations of pEVs, PS+pEVs, and %PS+pEVs were significantly higher after IS vs. HC (p < 0.001). PS+pEVs were higher after stroke vs. controls (p < 0.01). The concentrations of pEVs with expression of studied molecules were higher on D1 and D3 after stroke vs. controls. The concentration of pEVs after platelet stimulation with ADP was significantly diminished on D3. IS most notably affects the phenotype of pEVs with a limited effect on the number of pEVs. Ischemic stroke moderately disturbs platelet microvesiculation, most notably in the acute phase, affecting the phenotype of pEVs, with a limited impact on the number of pEVs. The accumulation of α-synuclein (α-syn), an essential step in PD development and progression, is observed not only in neurons but also in glia, including astrocytes. The mechanisms regulating astrocytic α-syn level and aggregation remain unclear. More recently, it has been demonstrated that a part of α-syn spreading occurs through extracellular vesicles (EVs), although it is unknown whether this process is involved in astrocytes of PD. It is known, however, that EVs derived from the central nervous system exist in the blood and are extensively explored as biomarkers for PD and other neurodegenerative disorders. Primary astrocytes were transfected with A53T α-syn plasmid or exposed to α-syn aggregates. The level of astrocyte-derived EVs (AEVs) was assessed by nanoparticle tracking analysis and immunofluorescence. The lysosomal function was evaluated by Cathepsin assays, immunofluorescence for levels of Lamp1 and Lamp2, and LysoTracker Red staining. The Apogee assays were optimized to measure the GLT-1+ AEVs in clinical cohorts of 106 PD, 47 multiple system atrophy (MSA), and 103 healthy control (HC) to test the potential of plasma AEVs as a biomarker to differentiate PD from other forms of parkinsonism. The number of AEVs significantly increased in primary astrocytes with α-syn deposition. The mechanism of increased AEVs was partially attributed to lysosomal dysfunction. The number of α-syn-carrying AEVs was significantly higher in patients with PD than in HC and MSA. The integrative model combining AEVs with total and aggregated α-syn exhibited efficient diagnostic power in differentiating PD from HC with an AUC of 0.915, and from MSA with an AUC of 0.877. Pathological α-syn deposition could increase the astrocytic secretion of EVs, possibly through α-syn-induced lysosomal dysfunction. The α-syn-containing AEVs in the peripheral blood may be an effective biomarker for clinical diagnosis or differential diagnosis of PD. Mitochondrial dysfunction has pleiotropic effects and is frequently caused by mitochondrial DNA mutations. However, factors such as significant variability in clinical manifestations make interpreting the pathogenicity of variants in the mitochondrial genome challenging. Here, we present APOGEE 2, a mitochondrially-centered ensemble method designed to improve the accuracy of pathogenicity predictions for interpreting missense mitochondrial variants. Built on the joint consensus recommendations by the American College of Medical Genetics and Genomics/Association for Molecular Pathology, APOGEE 2 features an improved machine learning method and a curated training set for enhanced performance metrics. It offers region-wise assessments of genome fragility and mechanistic analyses of specific amino acids that cause perceptible long-range effects on protein structure. With clinical and research use in mind, APOGEE 2 scores and pathogenicity probabilities are precompiled and available in MitImpact. APOGEE 2's ability to address challenges in interpreting mitochondrial missense variants makes it an essential tool in the field of mitochondrial genetics. Extracellular vesicles (EVs) in body fluids are explored as disease biomarkers, but EV concentrations measured by flow cytometers (FCMs) are incomparable. To improve data comparability, new reference materials with physical properties resembling EVs and reference procedures are being developed. The validation of new reference materials and procedures requires biological test samples. We developed a human plasma EV test sample (PEVTES) that i) resembles subcellular particles in plasma, ii) is ready-to-use, iii) is flow cytometry-compatible, and iv) is stable. The PEVTES was prepared from human plasma of 3 fasting donors. EVs were immunofluorescently stained with antibodies against platelet-specific (CD61) and erythrocyte-specific (CD235a) antigens or lactadherin. To reduce the concentration of soluble proteins, lipoproteins, and unbound reagents, stained EVs were isolated from plasma by size-exclusion chromatography. After isolation, the PEVTES was filtered to remove remnant platelets. PEVTESs were diluted in cryopreservation agents, dimethyl sulfoxide, glycerol, or trehalose and stored at -80 °C for 12 months. After thawing, stained EV concentrations were measured with a calibrated FCM (Apogee A60-Micro). We demonstrate that the developed PEVTES resembles subcellular particles in human plasma when measured using FCM and that the concentrations of prestained platelet-derived, erythrocyte-derived, and lactadherin+ EVs in the PEVTES are stable during storage at -80 °C for 12 months when stored in trehalose. The PEVTES i) resembles subcellular particles in plasma, ii) is ready-to-use, iii) is flow cytometry-compatible, and iv) is stable. Therefore, the developed PEVTES is an ideal candidate to validate newly developed reference materials and procedures. Flow cytometry is commonly used to detect cell-derived extracellular vesicles in body fluids such as blood plasma. However, continuous and simultaneous illumination of multiple particles at or below the detection limit may result in the detection of a single event. This phenomenon is called swarm detection and leads to incorrect particle concentration measurements. To prevent swarm detection, sample dilution is recommended. Since the concentration of particles differs between plasma samples, finding the optimal sample dilution requires dilution series of all samples, which is unfeasible in clinical routine. Here we developed a practical procedure to find the optimal sample dilution of plasma for extracellular vesicle flow cytometry measurements in clinical research studies. Dilution series of 5 plasma samples were measured with flow cytometry (Apogee A60-Micro), triggered on side scatter. The total particle concentration between these plasma samples ranged from 2.5 × 109 to 2.1 × 1011 mL-1. Swarm detection was absent in plasma samples when diluted ≥1.1 × 103-fold or at particle count rates <3.0 × 103 events·s-1. Application of either one of these criteria, however, resulted in insignificant particle counts in most samples. The best approach to prevent swarm detection while maintaining significant particle counts was by combining minimal dilution with maximum count rate. To prevent swarm detection in a series of clinical samples, the measurement count rate of a single diluted plasma sample can be used to determine the optimal dilution factor. For our samples, flow cytometer, and settings, the optimal dilution factor is ≥1.1 × 102-
DOI: 10.1039/d2nr01160c 논문 보기 The Clinical Effects of Pixel CO(2) Laser on Bladder Neck and Stress Urinary Incontinence.
Long CY, Lee JP, Loo ZX et al. ·Journal of clinical medicine ·2022 ·cited 7
초록 펼치기
To compare the effectiveness of pixel CO2 laser and vaginal promestriene in treating genitourinary syndrome of menopause (GSM). A quasi-randomized controlled trial was conducted with 48 patients. CO2 Laser Group (24 patients) received 3 sessions of vaginal pixel CO2 laser, and promestriene group (24 patients) used vaginal promestriene daily for 14 days, then twice weekly for 3 months and 3 weeks. Patients were evaluated before and after treatment using a visual analog scale (VAS), FSFI-6, ICIQ-SF, Vaginal Health Index (VHI), and vaginal wall biopsy. Of the 48 patients, 22 in CO2 Laser Group and 21 in promestriene group completed the study. Both groups showed significant symptom reduction by VAS, with improvements in desire, lubrication, and total FSFI-6 scores. CO2 Laser Group had greater improvements in lubrication, orgasm, and satisfaction (p<0.001). Urinary incontinence improved in both groups (p<0.01). VHI scores increased significantly in both groups (p<0.001). Biopsies revealed improvements in collagen, glycogen, vascularity, epithelial thickness, and reduced neutrophil count (p<0.01). CO2 laser appears to be a viable non-hormonal alternative for treating GSM, particularly for women unable or unwilling to use hormonal therapies. Optical coherent tomography (OCT) is an emerging non-invasive imaging technology with significant potential in fields of medicine where invasive biopsy is limited or impractical. In ophthalmology, where retinal biopsy is not possible, OCT has become a standard of care for monitoring physiologic and pathologic changes. Similarly, OCT holds promise for improving women's healthcare, particularly in areas where biopsies are not routinely performed due to anatomical, ethical, or patient comfort considerations. Genitourinary syndrome of menopause (GSM) is one such condition where OCT may provide significant clinical value. However, ethical and practical limitations often restrict the ability to perform repeated or even sporadic vaginal wall biopsies. As a result, the efficacy of new treatment modalities largely assessed through subjective patient-reported outcomes, leading to inconsistent and controversial data that hinder progress in the field. This review outlines a collaborative effort by scientists and clinicians at the University of California, Irvine, to develop a novel, non-invasive "optical biopsy" tool for external genital assessment. A dedicated system integrated within a vaginal probe was developed to combine energy-based treatment with real-time OCT imaging. The new system successfully detected differences in vaginal epithelial thickness (VET) and blood vessel density (BVD) across women of different age groups, and between different segments of the vaginal wall. The system was used to measure VET and BVD changes before and after treatment with Fractional-Pixel CO2 laser. Beyond GSM, this technology is now being applied to other vulvovaginal conditions, including vulvar lichen sclerosus (VLS). The ability to perform non-invasive real-time monitoring of tissue structure and function is a critical step forward in women's health, offering new opportunities for diagnosis, treatment, monitoring, and ultimately improving clinical outcomes. Background: Our study aims to assess Pixel CO2 laser efficacy for female stress urinary incontinence (SUI). Methods: In the study, 25 women with SUI were included and scheduled for vaginal Pixel CO2 Laser (FemiLift™, Alma Lasers, Israel) treatment. All subjects had a baseline and 6-month post-treatment assessment that included three-dimensional perineal ultrasound and validated questionnaires. Results: Data showed that monthly three-session vaginal Pixel CO2 Laser treatment significantly improved SUI symptoms, as evidenced by validated questionnaires, including UDI-6, IIQ-7, ICIQ, and vaginal laxity questionnaire (p < 0.05). The Pixel CO2 Laser efficacy in vaginal treatment was 20/25 (80%), and the perineal sonography showed that laser treatment significantly decreased bladder neck mobility and middle urethral area (during resting and straining). Permanent adverse events were not found. Conclusions: The results of our study suggested that for the treatment of mild to moderate SUI symptoms, Pixel CO2 Laser is effective and safe; however, more studies and a longer follow-up should be conducted to confirm its efficacy and durability. The aim of this study was to assess the safety and efficacy of a minimally invasive pixel-CO2 laser procedure for the treatment of stress urinary incontinence (SUI). This was a prospective, open-label study with a cohort of 59 women. Patients were treated intravaginally with a fractional/pixel CO2 laser every 4-6 weeks for a total of three treatments and assessed at 3, 6, and 12 months. Evaluation tools included a Sandvik severity score based on a validated questionnaire, 1-h pad test, vaginal health index score (VHIS), validated female sexual function index (FSFI), patient's impression of disease severity (PGI-S), global impression of improvement (PGI-I), and the short-term pelvic floor impact questionnaire (PFIQ-7) to assess improvements in quality of life. Reduction in SUI severity was noticed throughout the duration of the study, as compared to the baseline in which 2% of the patients were defined as "slight," 73% "moderate," and 25% "severe." Gradual improvement of symptoms resulted in redistribution of severity score and the best outcome observed between 3 and 6 months. Sanitary pad weight declined from an average of 35.45 g per day at baseline to 12.47 g at the 3rd treatment, and increased to 23.06 g at 12 months. Vaginal acidity changes showed a similar pattern. No serious adverse events were reported. Pixel-CO2 laser is safe and effective for treating SUI. Additional maintenance treatments should be considered during the 6-12-month post-treatment period in order to maintain the beneficial effects. Pixel-CO2 laser is a safe and effective treatment for SUI. Maintenance treatments should be considered at 6-12 months. Energy-based treatments have been found to be a promising treatment modality for improving stress urinary incontinence (SUI) symptoms. This prospective two-center study was designed to evaluate the efficacy of fractional-pixel CO2 laser for the treatment of SUI. Eighty-five women with SUI symptoms as per the cough stress test and validated International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form (ICIQ-UI-SF), were treated intravaginally with Pixel-CO2 laser. Two treatment sessions were performed with a 1-month interval. Safety and treatment tolerance were assessed by the visual analog scale (VAS) immediately and at 1 week after each laser treatment. Associations of age and body mass index (BMI) with the ICIQ-UI-SF score were statistically assessed by the Jonckheere-Terpstra test. The ICIQ-UI-SF score was 12.0 at baseline, 7.0, after the first treatment, and 3.5 after the second treatment (P = 0.001). For women with BMI (25.0-29.9), the ICIQ-UI-SF score was 9.0 at the baseline, 6.0 after 1 month, and 5.0 at the 6 months follow-up visit (P = 0.04). For women with BMI ≥ 30.0, the ICIQ-UI-SF score was reduced from 14.0 to 8.0 1 month after the baseline and 5.0 at the 6-month follow-up visit (P = 0.001). SUI severity evaluation at baseline showed that 27.1% of women had mild, 24.7% had moderate, 45.9% had severe, and 2.4% had very severe SUI symptoms. SUI severity scores were significantly reduced, with 45.8% of women with no SUI symptoms, 18.8% with mild, 20.8% with moderate, and 14.6% with severe SUI symptoms at the 6-month follow-up. The patient's evaluation of VAS after the first treatment was 1.0-1.5 (0-10) and 0.0 1 week after the second treatment. Fractional-pixel CO2 laser is safe and effective for treating SUI. No adverse event or significant pain was reported during or after the
DOI: 10.3390/jcm11174971 논문 보기 Radiomodulation in Mixed, Complex Cancer Pain by Triple Target Irradiation in the Brain: A Preliminary Experience.
Lovo EE, Moreira A, Cruz C et al. ·Cureus ·2022 ·cited 7
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The use of hyaluronic acid (HA) fillers is rising globally. Traditionally, the rheology of HA fillers has been subject to investigations for their use in facial soft tissues. Hitherto, there has been a significant gap in understanding their rheologic properties in body applications. The requirements for body fillers are different from facial fillers as they are applied for larger volume deficits, and experience greater mechanical stress. This study aims to fill this gap by analyzing the physicochemical and rheological properties of HA body fillers to guide clinical practice. Four commercially available HA-based body fillers were analyzed under standardized laboratory conditions. The physicochemical properties, including pH, osmolality, ion concentrations, clarity, and swelling factor, were assessed. Rheological properties, including storage modulus (G'), loss modulus (G″), complex modulus (G*), and tan delta (tan δ), were assessed between 0.1 and 1 Hz. The physicochemical analysis revealed no significant differences among the fillers, indicating uniform chemical stability. However, rheological analysis showed significant variations. Infini B Body exhibited the lowest G', G″, and G* values. In contrast, HYAcorp MLF1 and MLF2 displayed higher G' and G* values, indicating greater elasticity and stiffness. Consistent rankings between 0.1 and 1 Hz suggest stable mechanical performance under dynamic and sustained loading, supporting their suitability for high-load applications such as gluteal augmentation. Selecting HA body fillers based on their rheological properties is crucial for optimizing outcomes, particularly in body contouring procedures where mechanical demands differ from those of facial applications. Clinicians should tailor filler selection to the specific requirements of each body area. Further research is required to validate these findings in long-term clinical settings. This study sought to establish an experimental aneurysm model of visualizing coil insertion using radiolucent nylon coils. Moreover, this study aimed to clarify the characteristics and differences of each coil and use them clinically as indices of coil selection. The coil insertion test was performed on the 10 mm spherical silicone aneurysm model filled to a nylon coil volume embolization ratio of 11.8%. Five types of coil were randomly tested six times, and the distribution of the coils was analyzed by fluoroscopy imaging. Indices of "Area (mm2)," "Feret's diameter (mm)," and "Circularity" were calculated from the fluoroscopic images. Among the indices, only "Area" showed a significant difference between coils (p = 0.002). On multivariate analysis, "Area" of the ED Infini was larger than those of Target XL soft and Galaxy G3 (p = 0.018 and 0.026, respectively). Furthermore, the area of the 360 soft was larger than that of G3 (p = 0.049). Analysis of the correlation between these values and the coil configuration showed that "Area" was negatively correlated with the stock-wire diameter (r = -0.50; p = 0.004) and primary coil configuration (r = -0.65; p < 0.001). When inserting the coils in the early stage, although the difference between each coil is relatively difficult to obtain, knowledge on the proper use of the coils with differences in characteristics can help in selecting the coil most appropriate for the conditions. Introduction Up to 30% of terminally ill cancer patients experiencing intense pain might be refractory to opioid treatment. Complex cancer pain can be a mixture of somatic, visceral, and neuropathic pain with few or no effective alternatives to ameliorate pain. Radiosurgery to treat refractory pain in cancer has been reported with different degrees of success. Radiomodulation in pain could be defined as a fast (<72 h), substantial (>50%) pain relief by focal irradiation to a peripheric, and/or central mediated pain circuitry. Based on our previous experience, mixed, refractory cancer pain is usually unresponsive to single target irradiation of the hypophysis. We treated three patients using a multi-target approach. Methods Three terminally ill oncological patients experiencing refractory, complex, mixed pain from bone, abdomen, thorax, and brachial plexus were treated with triple target irradiation which consisted of irradiating with a maximum dose (Dmax) of 90 Gy to the hypophysis using either an 8 mm collimator with gamma ray (Infini) (Shenzhen, China: Masep Medical Company) or a 7.5 circular collimator with Cyberknife (Sunnyvale, CA: Accuray Inc.), the other two targets were the mesial structures of the thalamus bilaterally using a 4 mm collimator with Infini and the 5 mm circular collimator with CK delivering 90 Gy Dmax to each region. Patients had a VAS of 10 despite the best medical treatment. A correlation was made between the 45 Gy and 20 Gy isodose curves of the two different technologies to the Morel stereotactic atlas of the thalamus and basal ganglia for further understanding of dose distribution reconstructions in accordance with the São Paulo-Würzburg atlas of the Human Brain Project were performed. Lastly, a scoping review of the literature regarding radiosurgery for oncological pain was performed. Results Radiomodulation effect was achieved in all patients; case 1 had a VAS of five at 72 h, three at 15 days, and three at the time of death (21 days after treatment). Case 2 had a VAS of six at 72 h, five at 15 days, and four at the time of death (29 days after treatment). Case 3 had a VAS of five at 72 h, six at 15 days, and six at the time of death (30 days). Morphine rescues for cases 1 and 2 were reduced to 84%, and 70% for case 3. Overall, there were no adverse effects to treatment although excessive sleepiness was reported by one patient. After reading the title and abstract, only 14 studies remained eligible for full-text evaluation, and only nine studies met inclusion criteria after full-text reading. For most reports (seven), the target was the hypophysis and in two reports, the target was the thalamus either with single or bilateral irradiation. Conclusions In complex, for refractory oncological pain of mixed nature (nociceptive, neuropathic, and visceral), very few, if any, treatment alternatives are currently available. We provide a small proof of concept that multitarget intracranial radiosurgery might be effective in ameliorating pain in this population. The doses administered per target are the lowest that have shown effectiveness thus far, a different strategy might be needed as opposed to single target "large" dose approach that has been tried in the past for complex mixed refractory oncological pain. By no means, in our experience, these treatments traduce in elimination of pain, clinical results might make pain to be more bearable and respond better to pain medication. Introduction Meningiomas are extra-axial central nervous system tumors. Complete resection is often curative with macroscopically complete removal of the tumor, excision of its dural attachment, and any abnormal bone. Radiosurgery is also an option for high-risk patients or in patients with surgically residual disease. Dural tail is a typical radiological sign on contrast-enhanced MRI; it can contain tumor cells or be a reaction due to vascular congestion and edema. Radiosurgical planning treatment varies regarding the identification and coverage of the dural tail. This study aimed to retrospectively analyze a series of 143 patients with WHO Grade I meningiomas treated with different radiosurgical platforms, and dosing parameters focused on planning and dose delivery to the dural tail. Methods From February 2011 to July 2020, 143 patients with histologically confirmed or radiologically assumed WHO Grade I meningiomas were treated using rotating gamma-ray Infini™ (Gamma [MASEP Medical Science Technology Develo
DOI: 10.7759/cureus.25430 논문 보기 Global Expert Opinion on Cryolipolysis Treatment Recommendations and Considerations: A Modified Delphi Study.
Altmann J, Burns AJ, Kilmer SL et al. ·Aesthetic surgery journal. Open forum ·2022 ·cited 6
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A firming and toning cosmetic body lotion (FTB) was developed to target key pathways relevant to body skin health and rejuvenation that may complement the improvements observed after noninvasive body contouring (NIBC). A pilot study explored the efficacy and tolerability of FTB as an adjunct to cryolipolysis. An open-label, single-site, single-arm, 12-week study enrolled subjects aged 20 to 65 who had pre-elected to receive 1 or more cryolipolysis treatments (CoolSculpting&reg; or CoolSculpting&reg; Elite; Zeltiq Aesthetics, Inc.) on the inner thigh, back/bra fat, or submental areas. Immediately post-procedure, the investigator applied FTB to the treated area. Subjects then applied FTB topically twice daily for 12 weeks on the treated area. Skin texture and firmness were graded visually by the investigator using a 10-point scale, and subjects graded effectiveness, product attributes, and satisfaction with a questionnaire.&nbsp; Results: Seventeen subjects (16 women, 1 man) enrolled. After 12 weeks of FTB application, significant improvements in skin firmness were observed in all treated areas, while skin texture showed improvements on the inner thigh and back/bra fat (all P&le;0.009). With continued use following cryolipolysis, more than 70% of subjects agreed that FTB improved skin firmness, smoothness, and overall appearance. Subjects indicated that FTB was an effective adjunct to cryolipolysis. Throughout the study, 86% to 92% of subjects reported &ldquo;fair,&rdquo; &ldquo;good,&rdquo; or &ldquo;excellent&rdquo; satisfaction with FTB.&nbsp; Conclusion: This pilot study suggests that FTB may complement skin improvements seen post-NIBC.J Drugs Dermatol. 2024;23(4): doi:10.36849/JDD.7917. Cryolipolysis, also known as fat freezing, is a nonsurgical technique specialized for localized fat reduction. Utilizing targeted cold exposure to adipose tissue, cryolipolysis devices induce cellular apoptosis in adipocytes while sparing surrounding tissues, resulting in the selective disruption of fat cells and subsequent removal of damaged cells by macrophages. A reduction of the fat layer produces a noninvasive cosmetic benefit that provides an accessible alternative to liposuction. Objective and subjective measurements have demonstrated significant reduction in fat volume and high patient satisfaction rates. Cryolipolysis has been proven to be safe with minimal adverse effects. However, further research is needed to fully understand the mechanism of cryolipolysis and its efficacy in different treatment areas. This paper aims to provide a comprehensive overview of cryolipolysis, including its mechanism of action, indications, contraindications, adverse effects, results and outcomes, safety profile, and areas requiring further research. Our primary phase of literature review consisted of a PubMed search looking for all published literature around cryolipolysis. We employed a review approach that examined over 30 papers with the key search terms of "cryolipolysis," "fat-freezing," "cosmetic dermatology," "body contouring," "adverse effects," "adipocyte apoptosis," "Coolsculpting®," "cold panniculitis," and "localized fat reduction." We then analyzed each paper, extracting relevant information to gain a multidimensional understanding of cryolipolysis to provide a comprehensive review. Cryolipolysis, with its ability to target and reduce localized adipose tissue, has emerged as a promising nonsurgical technique in the field of body contouring. It offers patients a valuable option for achieving their desired fat reduction without the need for a lengthy recovery period or major surgery. Cryolipolysis has shown to reduce the number of adipocytes in the treated area, a phenomenon that can be objectively quantified through various means, including fat caliper measurements, ultrasound assessments, and 3D imaging, or subjectively observed through patient satisfaction rates, clinical observations, and investigator assessments. In addition to its effectiveness in reducing localized adipose tissue, cryolipolysis also holds potential in the area of skin tightening. Preliminary studies suggest that cryolipolysis may have a positive impact on skin elasticity and tightening. Further investigation of this mechanism is needed to provide a better understanding of its potential in achieving optimal cosmetic outcomes for patients. By combining the benefits of fat reduction and skin tightening, cryolipolysis has the potential to offer a comprehensive nonsurgical solution for body contouring. Noninvasive body contouring is becoming more popular in the United States as an alternative to liposuction. The most popular of these methods, cryolipolysis, uses precisely controlled cooling to reduce focal adiposities. The number of cryolipolysis procedures performed annually has experienced rampant growth in United States markets, and the indications have likewise diversified. In light of this change, it is imperative to perform an updated review of available US safety and efficacy data on cryolipolysis. To examine the safety and efficacy of cryolipolysis treatments in the United States using data extracted from research performed exclusively at US-based sites. In order to identify relevant studies, a literature search was conducted on PubMed using the terms "CoolSculpting" OR "cryolipolysis" OR "lipocryolysis." Articles were manually reviewed to exclude literature reviews, research not performed on humans, studies on experimental combinations of techniques, and any studies not performed in the United States. The initial literature search returned 246 results. Following manual review, a total of 18 studies were selected for data extraction. Mean reduction in fat thickness by ultrasound was 2.0-5.1 mm or 19.6%-32.3%; mean reduction by body caliper was 2.3-7 mm or 14.9%-21.5%. Side effects were mild and transient. Four instances of PAH were documented in 3453 treatment cycles. Cryolipolysis is a safe, modestly effective method for reducing focal adiposity. Complications are rare and treatable. However, US-based studies are few in number and often of low power and/or quality. More high-quality research is needed for all aspects of cryolipolysis. Cryolipolysis is a noninvasive procedure for localized fat reduction and body contouring. This technique utilizes controlled cooling to induce adipocyte apoptosis without damage to overlying skin and other tissue. Although the procedure was once thought to be relatively harmless, recent studies have shed light on the risks of adverse effects (AEs). The aim of this article was to review AEs in cryolipolysis as published in clinical data. A comprehensive search was performed in PubMed, using relevant keywords such as "cryolipolysis," "CoolSculpting," "adverse effects," "complications," and "side effects" with no set data range. The search was limited to studies published in English. The selected studies encompassed a variety of study designs, including randomized controlled trials, prospective cohort studies, case series, case reports, and reviews. Since its FDA approval in 2010, our understanding of the potential risks and complications associated with cryolipolysis has grown significantly, and shown that the procedure may not be as harmless as once thought. Continued post-market surveillance of cryolipolysis devices combined with documenting of AE cases help providers better understand the true risks associated with this procedure. As "cryolipolysis" and "CoolSculpting" are often used interchangeably, further research is needed to understand if AEs such as paradoxical adipose hyperplasia (PAH) that occur both inside and outside the United States are CoolSculpting cases or linked to other devices. Additionally, further studies are needed to understand the pathophysiology of such sequelae as PAH, and to better recognize the risks and potential complications associated with cryolipolysis so that
DOI: 10.1093/asjof/ojac008 논문 보기 EmBody/EmFace as a new open tool to assess emotion recognition from body and face expressions.
Lott LL, Spengler FB, Stächele T et al. ·Scientific reports ·2022 ·cited 5
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Non-surgical aesthetic treatments (NSATs) have gained significant traction over the past two decades, prized for their minimally invasive nature, cost-effectiveness, and rapid outcomes. Yet complications associated with these procedures remain underreported, inadequately studied, and inconsistently regulated, compromising patient safety. This mixed-methods study synthesised global data from 457 peer-reviewed studies, 37,250 media articles, 2.28 million social media posts, and regulatory databases, encompassing 231,475 documented complications. Statistical methodologies, including Cox proportional hazards models, Bayesian hierarchical modelling, and geospatial mapping, were employed to evaluate risk trends. Machine learning algorithms forecasted emerging risks, while sensitivity analyses addressed potential data biases. Dermal fillers accounted for 42% of complications, chiefly granulomas, vascular occlusions, and delayed hypersensitivity reactions. Botulinum toxin A contributed 15% of cases, predominantly mild adverse effects such as headache, ptosis, and bruising. Thread lift procedures were marred by frequent extrusion and infection rates. The safest products were identified as Prabotulinumtoxin A, Juvéderm high-viscosity fillers, Profhilo, APTOS Light Lift, microneedling radiofrequency devices, Ultherapy, and EMFACE, each demonstrating > 85% safety probability. Predictive models highlighted escalating risks linked to unregulated therapies (e.g. exosomes), while geospatial analysis revealed stark regional disparities, with Asia reporting 34% of complications-attributed to medical tourism and variable oversight. While advancements like standardised complication registries and ultrasound-guided techniques herald progress, transformative measures are imperative. These include mandating adverse event reporting, harmonising global regulatory frameworks, and integrating AI-driven surveillance systems. The field must prioritise transparency, rigorous credentialling, and patient-centred ethics to ensure its evolution aligns with uncompromising safety standards. This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 . Nonverbal expressions contribute substantially to social interaction by providing information on another person's intentions and feelings. While emotion recognition from dynamic facial expressions has been widely studied, dynamic body expressions and the interplay of emotion recognition from facial and body expressions have attracted less attention, as suitable diagnostic tools are scarce. Here, we provide validation data on a new open source paradigm enabling the assessment of emotion recognition from both 3D-animated emotional body expressions (Task 1: EmBody) and emotionally corresponding dynamic faces (Task 2: EmFace). Both tasks use visually standardized items depicting three emotional states (angry, happy, neutral), and can be used alone or together. We here demonstrate successful psychometric matching of the EmBody/EmFace items in a sample of 217 healthy subjects with excellent retest reliability and validity (correlations with the Reading-the-Mind-in-the-Eyes-Test and Autism-Spectrum Quotient, no correlations with intelligence, and given factorial validity). Taken together, the EmBody/EmFace is a novel, effective (< 5 min per task), highly standardized and reliably precise tool to sensitively assess and compare emotion recognition from body and face stimuli. The EmBody/EmFace has a wide range of potential applications in affective, cognitive and social neuroscience, and in clinical research studying face- and body-specific emotion recognition in patient populations suffering from social interaction deficits such as autism, schizophrenia, or social anxiety.
DOI: 10.1038/s41598-022-17866-w 논문 보기 Comparison of Prolift, Perigee-Apogee, Prosima, and Elevate transvaginal mesh systems in pelvic organ prolapse surgery: Clinical outcomes of a long-term observational study.
Huang KH, Chen WH, Yang TH et al. ·Lower urinary tract symptoms ·2022 ·cited 5
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The levels of platelet-derived extracellular vesicles (pEVs) have been reported as elevated in acute ischemic stroke (IS). However, the results of studies remain equivocal. This prospective, case-control study included 168 patients with IS, 63 matched disease controls (DC), and 21 healthy controls (HC). Total pEVs concentration, the concentration of phosphatidylserine-positive pEVs (PS+pEVs), the percentage of PS+pEVs (%PS+pEVs) and the concentration of pEVs with expression of CD62P+, CD40L+, CD31+, and active form of GPIIb/IIIa receptor (PAC-1+) were assessed on days 1, 3, 10, and 90 with the Apogee A50-Micro flow cytometer. The concentrations of pEVs, PS+pEVs, and %PS+pEVs were significantly higher after IS vs. HC (p < 0.001). PS+pEVs were higher after stroke vs. controls (p < 0.01). The concentrations of pEVs with expression of studied molecules were higher on D1 and D3 after stroke vs. controls. The concentration of pEVs after platelet stimulation with ADP was significantly diminished on D3. IS most notably affects the phenotype of pEVs with a limited effect on the number of pEVs. Ischemic stroke moderately disturbs platelet microvesiculation, most notably in the acute phase, affecting the phenotype of pEVs, with a limited impact on the number of pEVs. The accumulation of α-synuclein (α-syn), an essential step in PD development and progression, is observed not only in neurons but also in glia, including astrocytes. The mechanisms regulating astrocytic α-syn level and aggregation remain unclear. More recently, it has been demonstrated that a part of α-syn spreading occurs through extracellular vesicles (EVs), although it is unknown whether this process is involved in astrocytes of PD. It is known, however, that EVs derived from the central nervous system exist in the blood and are extensively explored as biomarkers for PD and other neurodegenerative disorders. Primary astrocytes were transfected with A53T α-syn plasmid or exposed to α-syn aggregates. The level of astrocyte-derived EVs (AEVs) was assessed by nanoparticle tracking analysis and immunofluorescence. The lysosomal function was evaluated by Cathepsin assays, immunofluorescence for levels of Lamp1 and Lamp2, and LysoTracker Red staining. The Apogee assays were optimized to measure the GLT-1+ AEVs in clinical cohorts of 106 PD, 47 multiple system atrophy (MSA), and 103 healthy control (HC) to test the potential of plasma AEVs as a biomarker to differentiate PD from other forms of parkinsonism. The number of AEVs significantly increased in primary astrocytes with α-syn deposition. The mechanism of increased AEVs was partially attributed to lysosomal dysfunction. The number of α-syn-carrying AEVs was significantly higher in patients with PD than in HC and MSA. The integrative model combining AEVs with total and aggregated α-syn exhibited efficient diagnostic power in differentiating PD from HC with an AUC of 0.915, and from MSA with an AUC of 0.877. Pathological α-syn deposition could increase the astrocytic secretion of EVs, possibly through α-syn-induced lysosomal dysfunction. The α-syn-containing AEVs in the peripheral blood may be an effective biomarker for clinical diagnosis or differential diagnosis of PD. Mitochondrial dysfunction has pleiotropic effects and is frequently caused by mitochondrial DNA mutations. However, factors such as significant variability in clinical manifestations make interpreting the pathogenicity of variants in the mitochondrial genome challenging. Here, we present APOGEE 2, a mitochondrially-centered ensemble method designed to improve the accuracy of pathogenicity predictions for interpreting missense mitochondrial variants. Built on the joint consensus recommendations by the American College of Medical Genetics and Genomics/Association for Molecular Pathology, APOGEE 2 features an improved machine learning method and a curated training set for enhanced performance metrics. It offers region-wise assessments of genome fragility and mechanistic analyses of specific amino acids that cause perceptible long-range effects on protein structure. With clinical and research use in mind, APOGEE 2 scores and pathogenicity probabilities are precompiled and available in MitImpact. APOGEE 2's ability to address challenges in interpreting mitochondrial missense variants makes it an essential tool in the field of mitochondrial genetics. Extracellular vesicles (EVs) in body fluids are explored as disease biomarkers, but EV concentrations measured by flow cytometers (FCMs) are incomparable. To improve data comparability, new reference materials with physical properties resembling EVs and reference procedures are being developed. The validation of new reference materials and procedures requires biological test samples. We developed a human plasma EV test sample (PEVTES) that i) resembles subcellular particles in plasma, ii) is ready-to-use, iii) is flow cytometry-compatible, and iv) is stable. The PEVTES was prepared from human plasma of 3 fasting donors. EVs were immunofluorescently stained with antibodies against platelet-specific (CD61) and erythrocyte-specific (CD235a) antigens or lactadherin. To reduce the concentration of soluble proteins, lipoproteins, and unbound reagents, stained EVs were isolated from plasma by size-exclusion chromatography. After isolation, the PEVTES was filtered to remove remnant platelets. PEVTESs were diluted in cryopreservation agents, dimethyl sulfoxide, glycerol, or trehalose and stored at -80 °C for 12 months. After thawing, stained EV concentrations were measured with a calibrated FCM (Apogee A60-Micro). We demonstrate that the developed PEVTES resembles subcellular particles in human plasma when measured using FCM and that the concentrations of prestained platelet-derived, erythrocyte-derived, and lactadherin+ EVs in the PEVTES are stable during storage at -80 °C for 12 months when stored in trehalose. The PEVTES i) resembles subcellular particles in plasma, ii) is ready-to-use, iii) is flow cytometry-compatible, and iv) is stable. Therefore, the developed PEVTES is an ideal candidate to validate newly developed reference materials and procedures. Flow cytometry is commonly used to detect cell-derived extracellular vesicles in body fluids such as blood plasma. However, continuous and simultaneous illumination of multiple particles at or below the detection limit may result in the detection of a single event. This phenomenon is called swarm detection and leads to incorrect particle concentration measurements. To prevent swarm detection, sample dilution is recommended. Since the concentration of particles differs between plasma samples, finding the optimal sample dilution requires dilution series of all samples, which is unfeasible in clinical routine. Here we developed a practical procedure to find the optimal sample dilution of plasma for extracellular vesicle flow cytometry measurements in clinical research studies. Dilution series of 5 plasma samples were measured with flow cytometry (Apogee A60-Micro), triggered on side scatter. The total particle concentration between these plasma samples ranged from 2.5 × 109 to 2.1 × 1011 mL-1. Swarm detection was absent in plasma samples when diluted ≥1.1 × 103-fold or at particle count rates <3.0 × 103 events·s-1. Application of either one of these criteria, however, resulted in insignificant particle counts in most samples. The best approach to prevent swarm detection while maintaining significant particle counts was by combining minimal dilution with maximum count rate. To prevent swarm detection in a series of clinical samples, the measurement count rate of a single diluted plasma sample can be used to determine the optimal dilution factor. For our samples, flow cytometer, and settings, the optimal dilution factor is ≥1.1 × 102-
DOI: 10.1111/luts.12408 논문 보기 Patient Satisfaction, Recommendation Rate, and Patient Comfort With an FDA-Cleared Cryolipolysis System.
Altmann J, Jehle F, Mang W ·Aesthetic surgery journal. Open forum ·2022 ·cited 5
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A firming and toning cosmetic body lotion (FTB) was developed to target key pathways relevant to body skin health and rejuvenation that may complement the improvements observed after noninvasive body contouring (NIBC). A pilot study explored the efficacy and tolerability of FTB as an adjunct to cryolipolysis. An open-label, single-site, single-arm, 12-week study enrolled subjects aged 20 to 65 who had pre-elected to receive 1 or more cryolipolysis treatments (CoolSculpting&reg; or CoolSculpting&reg; Elite; Zeltiq Aesthetics, Inc.) on the inner thigh, back/bra fat, or submental areas. Immediately post-procedure, the investigator applied FTB to the treated area. Subjects then applied FTB topically twice daily for 12 weeks on the treated area. Skin texture and firmness were graded visually by the investigator using a 10-point scale, and subjects graded effectiveness, product attributes, and satisfaction with a questionnaire.&nbsp; Results: Seventeen subjects (16 women, 1 man) enrolled. After 12 weeks of FTB application, significant improvements in skin firmness were observed in all treated areas, while skin texture showed improvements on the inner thigh and back/bra fat (all P&le;0.009). With continued use following cryolipolysis, more than 70% of subjects agreed that FTB improved skin firmness, smoothness, and overall appearance. Subjects indicated that FTB was an effective adjunct to cryolipolysis. Throughout the study, 86% to 92% of subjects reported &ldquo;fair,&rdquo; &ldquo;good,&rdquo; or &ldquo;excellent&rdquo; satisfaction with FTB.&nbsp; Conclusion: This pilot study suggests that FTB may complement skin improvements seen post-NIBC.J Drugs Dermatol. 2024;23(4): doi:10.36849/JDD.7917. Cryolipolysis, also known as fat freezing, is a nonsurgical technique specialized for localized fat reduction. Utilizing targeted cold exposure to adipose tissue, cryolipolysis devices induce cellular apoptosis in adipocytes while sparing surrounding tissues, resulting in the selective disruption of fat cells and subsequent removal of damaged cells by macrophages. A reduction of the fat layer produces a noninvasive cosmetic benefit that provides an accessible alternative to liposuction. Objective and subjective measurements have demonstrated significant reduction in fat volume and high patient satisfaction rates. Cryolipolysis has been proven to be safe with minimal adverse effects. However, further research is needed to fully understand the mechanism of cryolipolysis and its efficacy in different treatment areas. This paper aims to provide a comprehensive overview of cryolipolysis, including its mechanism of action, indications, contraindications, adverse effects, results and outcomes, safety profile, and areas requiring further research. Our primary phase of literature review consisted of a PubMed search looking for all published literature around cryolipolysis. We employed a review approach that examined over 30 papers with the key search terms of "cryolipolysis," "fat-freezing," "cosmetic dermatology," "body contouring," "adverse effects," "adipocyte apoptosis," "Coolsculpting®," "cold panniculitis," and "localized fat reduction." We then analyzed each paper, extracting relevant information to gain a multidimensional understanding of cryolipolysis to provide a comprehensive review. Cryolipolysis, with its ability to target and reduce localized adipose tissue, has emerged as a promising nonsurgical technique in the field of body contouring. It offers patients a valuable option for achieving their desired fat reduction without the need for a lengthy recovery period or major surgery. Cryolipolysis has shown to reduce the number of adipocytes in the treated area, a phenomenon that can be objectively quantified through various means, including fat caliper measurements, ultrasound assessments, and 3D imaging, or subjectively observed through patient satisfaction rates, clinical observations, and investigator assessments. In addition to its effectiveness in reducing localized adipose tissue, cryolipolysis also holds potential in the area of skin tightening. Preliminary studies suggest that cryolipolysis may have a positive impact on skin elasticity and tightening. Further investigation of this mechanism is needed to provide a better understanding of its potential in achieving optimal cosmetic outcomes for patients. By combining the benefits of fat reduction and skin tightening, cryolipolysis has the potential to offer a comprehensive nonsurgical solution for body contouring. Noninvasive body contouring is becoming more popular in the United States as an alternative to liposuction. The most popular of these methods, cryolipolysis, uses precisely controlled cooling to reduce focal adiposities. The number of cryolipolysis procedures performed annually has experienced rampant growth in United States markets, and the indications have likewise diversified. In light of this change, it is imperative to perform an updated review of available US safety and efficacy data on cryolipolysis. To examine the safety and efficacy of cryolipolysis treatments in the United States using data extracted from research performed exclusively at US-based sites. In order to identify relevant studies, a literature search was conducted on PubMed using the terms "CoolSculpting" OR "cryolipolysis" OR "lipocryolysis." Articles were manually reviewed to exclude literature reviews, research not performed on humans, studies on experimental combinations of techniques, and any studies not performed in the United States. The initial literature search returned 246 results. Following manual review, a total of 18 studies were selected for data extraction. Mean reduction in fat thickness by ultrasound was 2.0-5.1 mm or 19.6%-32.3%; mean reduction by body caliper was 2.3-7 mm or 14.9%-21.5%. Side effects were mild and transient. Four instances of PAH were documented in 3453 treatment cycles. Cryolipolysis is a safe, modestly effective method for reducing focal adiposity. Complications are rare and treatable. However, US-based studies are few in number and often of low power and/or quality. More high-quality research is needed for all aspects of cryolipolysis. Cryolipolysis is a noninvasive procedure for localized fat reduction and body contouring. This technique utilizes controlled cooling to induce adipocyte apoptosis without damage to overlying skin and other tissue. Although the procedure was once thought to be relatively harmless, recent studies have shed light on the risks of adverse effects (AEs). The aim of this article was to review AEs in cryolipolysis as published in clinical data. A comprehensive search was performed in PubMed, using relevant keywords such as "cryolipolysis," "CoolSculpting," "adverse effects," "complications," and "side effects" with no set data range. The search was limited to studies published in English. The selected studies encompassed a variety of study designs, including randomized controlled trials, prospective cohort studies, case series, case reports, and reviews. Since its FDA approval in 2010, our understanding of the potential risks and complications associated with cryolipolysis has grown significantly, and shown that the procedure may not be as harmless as once thought. Continued post-market surveillance of cryolipolysis devices combined with documenting of AE cases help providers better understand the true risks associated with this procedure. As "cryolipolysis" and "CoolSculpting" are often used interchangeably, further research is needed to understand if AEs such as paradoxical adipose hyperplasia (PAH) that occur both inside and outside the United States are CoolSculpting cases or linked to other devices. Additionally, further studies are needed to understand the pathophysiology of such sequelae as PAH, and to better recognize the risks and potential complications associated with cryolipolysis so that
DOI: 10.1093/asjof/ojac067 논문 보기 1470-nm Radial fiber-assisted liposuction for body contouring and facial fat grafting.
Heller L, Menashe S, Plonski L et al. ·Journal of cosmetic dermatology ·2022 ·cited 4
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This randomized, parallel-group clinical trial aimed to evaluate the one-year clinical performance of the Beautibond Xtreme adhesive system (Shofu Inc., Kyoto, Japan) applied with different bonding strategies in Class I and Class II posterior restorations. A total of 22 patients (14 female and 8 male, aged ≥18 years) requiring restorative treatment provided 152 teeth with Class I or Class II carious lesions or defective restorations. Restorations were randomly assigned to six groups, including two control groups (Class I and II using the total-etch technique) and four test groups (Class I and II using either the self-etch technique or selective enamel etching). All restorations were performed using Beautibond Xtreme adhesive combined with Beautifill LS composite resin. Clinical performance was assessed at baseline, six months, and one year using modified United States Public Health Service (USPHS) criteria, including anatomic form, marginal adaptation, marginal discoloration, color match, surface texture, secondary caries, postoperative sensitivity, and retention. Randomization was performed with a computer-generated sequence, and two calibrated, blinded examiners (Kappa = 0.84) conducted all evaluations. No significant changes were observed in anatomic form, color match, surface texture, secondary caries, postoperative sensitivity, or retention over time in any group (p>0.05). However, restorations performed using the self-etch technique showed significant deterioration in marginal adaptation and marginal discoloration from baseline to six months and one year (p<0.05). Significant differences were also observed when comparing these restorations to the total-etch and selective enamel etching groups (p<0.05). The Beautibond Xtreme adhesive system demonstrated better clinical performance when applied with total-etch or selective enamel etching techniques compared to the self-etch mode for both Class I and Class II restorations after one year of follow-up. Laser-assisted liposuction using 1470-nm radial fiber emits light energy preferentially absorbed by water, yielding a rapid and localized contouring and tightening effect, with minimal scarring. When collected under appropriate conditions, extracted fat samples can be exploited as autologous filling material in liposculpturing procedures. To assess the 6-month contouring efficacy of 1470 radial fiber-assisted liposuction and the volumetric enhancement effect of the harvested tissue in facial fat grafting. Twenty subjects underwent liposuction (BeautiFill, Alma Lasers, Inc.) of lower abdominal or outer thigh fat. In seven subjects, harvested samples were grafted into facial regions. Treatment safety, body weight, blinded evaluator-assessed aesthetic improvements, and subject-rated satisfaction were monitored for 6 months. Abdominal and facial fat thickness were assessed by magnetic resonance imaging (n = 5) within 3 months of treatment. One-month posttreatment, most subjects ranked improvements good/excellent (88%) and skin tightening satisfactory/very satisfactory (92%), with >70% of subjects providing similar scores 6-month posttreatment. Blinded evaluators noted improved/very much improved aesthetic appearance (87%). Harvested tissue injected as a facial filler (21.0 ± 5.2 ml) led to a 0.63 ± 0.12 mm increase in facial fat thickness, observed by MRI, within 3 months. Six months postfilling, the majority of subjects (83%) were satisfied with the outcome. All procedures were well-tolerated. A single 1470 nm radial fiber-assisted abdominal and thigh liposuction session provided for effective and durable reduction of adipose tissue deposits, with appreciable skin tightening and aesthetic improvements. The gentle harvesting method yielded viable filler material, which was well-retained in facial regions for up to 6 months. The primeval evaluation of the properties of composite resins with different compositions that impact clinical behavior is very important in guiding use in clinical settings. The aim of this study was to evaluate color stability (ΔE) and Knoop microhardness (KHN) of composite resins containing different compositions. Forty-five disks were made composite resins: Filtek Z350 XT/3MESPE and Beautifill II/SHOFU and divided into 3 subgroups: Control - immersed in artificial saliva; OB - brushing with Oral B 3D White; CT - brushing with Colgate Total 12. The OB and CT groups had the disks brushed daily with 120 cycles after immersion in coffee solution (10 min) for a period of 30 days. ΔE and KHN was obtained at baseline and after the treatments. Data were analyzed ANOVA and Tukey tests (p < 0.05). ANOVA revealed significant differences for ΔE and KHN. ΔE: the highest mean was observed in Beautifil II composite resin group, which differed significantly from Z350 group. For the Beautifil II, the treatments were significantly different from each other. For the Z350, the control group showed significant differences in relation to OB e CT groups. KHN: the highest mean was observed in Z350 group, which differed significantly from Beautifil II group. For Z350, the control group showed significant differences in relation to OB e CT groups. For Beautifil II, the treatments did not differ significantly among themselves. The composite resin containing fluoride in the composition showed higher color alteration (ΔE) and lower Knoop microhardness (KHN), thus demonstrating that composition is an important factor in the clinical performance of esthetic restorative materials.
DOI: 10.1111/jocd.14767 논문 보기 Monopolar radiofrequency for reposing drooping fat planes and facial rejuvenation: A prospective study on 30 subjects towards true antiaging.
Garg S, Vashisht KR, Sushruth PR et al. ·Journal of cosmetic dermatology ·2022 ·cited 4
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Henneguya sp. is a crucial myxosporean parasite known to cause milky flesh or tapioca disease in the freshwater fish population, leading to heavy mortality. Studies to investigate its host range and to monitor their prevalence in wild and aquacultured fish are necessary. The infected orange-spotted snakehead (Channa aurantimaculata) fish samples showing clinical signs such as severe ulceration and open wounds on the mouth and operculum were collected from an ornamental fish-rearing unit in Chennai, Tamil Nadu. The sample was diagnosed with myxosporean infection by microscopic observation, morphological records and DNA sequencing followed by phylogenetic analysis. The Henneguya infection was identified in C. aurantimaculata for the first time. Necropsy of the infected fish revealed characteristic multifocal whitish-yellow, oval-shaped cysts measuring 3-5 mm in length on the liver and spleen. The wet mount of cysts showed numerous mature Henneguya spores that were uninucleate, elongated, lenticular and ellipsoidal with the bluntly rounded anterior end gradually tapering off to the posterior with a caudal elongation. The spore body measured 12.1 ± 0.9 μm (10.1-14.7 μm) × 7.1 ± 0.6 μm (5.3-8.5 μm) with two slightly unequal pyriform polar capsules of 6.1 ± 0.5 μm (5.1-7.4 )× 2.5 ± 0.4 μm (1.6-3.9) (large); 6.0 ± 0.4 μm (5.2-6.4) × 2.5 ± 0.3 μm (1.7-3.1) (small) and a caudal elongation of 16.1 ± 1.2 μm in length. The parasite was confirmed to be a Henneguya sp. by PCR amplification of SSrRNA followed by gene sequencing. The sequence generated was submitted in the GenBank under accession number PP852214.1 The maximum likelihood analysis revealed that the obtained sequence is a close relative of H. exilis with pairwise sequence variation of 3.3% and a homology of 99.04%. The findings highlight the potential impact of Henneguya sp. on ornamental fish health, underscoring the need for vigilant monitoring and management in India. Proliferative gill disease (PGD), caused by the myxozoan Henneguya ictaluri, has been the most notorious parasitic gill disease in the US catfish aquaculture industry. In 2019, an unusual gill disease caused by massive burdens of another myxozoan, Henneguya exilis, was described in channel (Ictalurus punctatus) × blue (Ictalurus furcatus) hybrid catfish. Targeted metagenomic sequencing and in situ hybridization (ISH) were used to differentiate these conditions by comparing myxozoan communities involved in lesion development and disease pathogenesis between massive H. exilis infections and PGD cases. Thirty ethanol-fixed gill holobranchs from 7 cases of massive H. exilis infection in hybrid catfish were subjected to targeted amplicon sequencing of the 18S rRNA gene and compared to a targeted metagenomic data set previously generated from clinical PGD case submissions. Furthermore, serial sections of 14 formalin-fixed gill holobranchs (2 per case) were analyzed by RNAscope duplex chromogenic ISH assays targeting 8 different myxozoan species. Targeted metagenomic and ISH data were concordant, indicating myxozoan community compositions significantly differ between PGD and massive branchial henneguyosis. Although PGD cases often consist of mixed species infections, massive branchial henneguyosis consisted of nearly pure H. exilis infections. Still, H. ictaluri was identified by ISH in association with infrequent PGD lesions, suggesting coinfections occur, and some cases of massive branchial henneguyosis may contain concurrent PGD lesions contributing to morbidity. These findings establish a case definition for a putative emerging, myxozoan-induced gill disease of farm-raised catfish with a proposed condition name of massive branchial henneguyosis of catfish (MBHC). Proliferative gill disease (PGD) in Channel Catfish Ictalurus punctatus and hybrid catfish (Channel Catfish × Blue Catfish I. furcatus) is attributed to the myxozoan Henneguya ictaluri. Despite evidence of decreased H. ictaluri transmission and impaired parasite development in hybrid catfish, PGD still occurs in hybrid production systems. Previous metagenomic assessments of clinical PGD cases revealed numerous myxozoans within affected gill tissues in addition to H. ictaluri. The objective of this study was to investigate the development and pathologic contributions of H. ictaluri and other myxozoans in naturally and experimentally induced PGD. Henneguya species-specific in situ hybridization (ISH) assays were developed using RNAscope technology. Natural infections were sourced from diagnostic case submissions in 2019. Experimental challenges involved Channel Catfish and hybrid catfish exposed to pond water from an active PGD outbreak, and the fish were sampled at 1, 7, 10, 12, 14, 16, 18, and 20 weeks postchallenge. Nine unique ISH probes were designed, targeting a diagnostic variable region of the 18S ribosomal RNA gene of select myxozoan taxa identified in clinical PGD cases. Partial validation from pure H. ictaluri, H. adiposa, H. postexilis, and H. exilis infections illustrated species-specific labeling and no cross-reactivity between different myxozoan species or the catfish hosts. After experimental challenge, mature plasmodia of H. ictaluri and H. postexilis formed in Channel Catfish but were not observed in hybrids, suggesting impaired or delayed sporogenesis in the hybridized host. These investigations also confirmed the presence of mixed infections in clinical PGD cases. Although H. ictaluri appears to be the primary cause of PGD, presporogonic stages of other myxozoans were also present, which may contribute to disease pathology and exacerbate respiratory compromise by further altering normal gill morphology. This work provides molecular confirmation and more resolute developmental timelines of H. ictaluri and H. postexilis in Channel Catfish and supports previous research indicating impaired or precluded H. ictaluri sporogony in hybrid catfish. Novel species of fungi described in this study include those from various countries as follows: Antartica, Cladosporium austrolitorale from coastal sea sand. Australia, Austroboletus yourkae on soil, Crepidotus innuopurpureus on dead wood, Curvularia stenotaphri from roots and leaves of Stenotaphrum secundatum and Thecaphora stajsicii from capsules of Oxalis radicosa. Belgium, Paraxerochrysium coryli (incl. Paraxerochrysium gen. nov.) from Corylus avellana. Brazil, Calvatia nordestina on soil, Didymella tabebuiicola from leaf spots on Tabebuia aurea, Fusarium subflagellisporum from hypertrophied floral and vegetative branches of Mangifera indica and Microdochium maculosum from living leaves of Digitaria insularis. Canada, Cuphophyllus bondii from a grassland. Croatia, Mollisia inferiseptata from a rotten Laurus nobilis trunk. Cyprus, Amanita exilis on calcareous soil. Czech Republic, Cytospora hippophaicola from wood of symptomatic Vaccinium corymbosum. Denmark, Lasiosphaeria deviata on pieces of wood and herbaceous debris. Dominican Republic, Calocybella goethei among grass on a lawn. France (Corsica), Inocybe corsica on wet ground. France (French Guiana), Trechispora patawaensis on decayed branch of unknown angiosperm tree and Trechispora subregularis on decayed log of unknown angiosperm tree. Germany, Paramicrothecium sambuci (incl. Paramicrothecium gen. nov.) on dead stems of Sambucus nigra. India, Aureobasidium microtermitis from the gut of a Microtermes sp. termite, Laccaria diospyricola on soil and Phylloporia tamilnadensis on branches of Catunaregam spinosa. Iran, Pythium serotinoosporum from soil under Prunus dulcis. Italy, Pluteus brunneovenosus on twigs of broadleaved trees on the ground. Japan, Heterophoma rehmanniae on leaves of Rehmannia glutinosa
DOI: 10.1111/jocd.14255 논문 보기 Fractional Carbon Dioxide Laser Improves Vaginal Laxity via Remodeling of Vaginal Tissues in Asian Women.
Gao L, Wen W, Wang Y et al. ·Journal of clinical medicine ·2022 ·cited 4
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To investigate the changes of vaginal health and vulvovaginal atrophy (VVA) symptoms following CO2 laser treatment in postpartum breastfeeding women. The number of treatment sessions required to alleviate related symptoms was also determined. Postpartum healthy women who continued breastfeeding and suffered from VVA related symptoms were included in this prospective study. All the participants underwent three consecutive fractional CO2 laser treatments using Lumenis AcuPulse system with FemTouch™ handpiece at four-weeks interval. Following each laser treatment, the severity of VVA symptoms and Vaginal Health Index (VHI) score were assessed as subjective and objective outcomes. The changes in VHI score and VVA symptom severity were compared with baseline data to detect the onset of significant improvement. Thirty postpartum breastfeeding women with VVA symptoms completed the treatment courses and associated measurements. Their age ranged from 25 to 41 with an average of 34.6 years. The mean duration of breastfeeding prior to the initial laser treatment was 3.3 months. Vaginal dryness and dyspareunia were the most bothersome VVA symptoms prior to laser treatment and alleviated after two to three treatment sessions. The significant change of VHI score reaching non-atrophic level was found after the first treatment (media of score post:18 vs. pre:14, p < 0.05) and sustained stable through the following two treatments. Application of fractional CO2 vaginal laser on the management of postpartum vulvovaginal atrophy was proven effectively in our study. Objective and subjective improvements were detected after the first and second laser treatment, respectively. Two consecutive laser treatment sessions were clinically sufficient to alleviate VVA related symptoms in these young female population under postpartum breastfeeding. Background: Vaginal laxity (VL) is characterized by the relaxing of the vaginal wall that affects the quality of life and sexual function of patients. The current management of VL such as Kegel exercises and topical or systemic hormonal replacement results in unsatisfactory outcomes; thus, novel modalities are needed to improve the efficacy. Vaginal fractional carbon dioxide (CO2) laser treatment has shown growing applications for the treatment of VL, but results show nonconformities due to the lack of objective evaluations. In this study, we aimed to validate the clinical efficacy and biophysical benefits of fractional CO2 laser treatment for VL patients with the incorporation of objective approaches. Methods: This is a descriptive study without controls. A total of 29 patients were enrolled and treated with two sessions of FemTouch vaginal fractional CO2 laser, with a one-month interval between sessions. Both subjective and objective measurements, including female sexual function index (FSFI), vaginal health index score (VHIS), vaginal tactile imaging (VTI), and histology were used to validate the clinical efficacy and biophysical benefits after treatment. Results: The overall FSFI scores and VHIS scores after the first and second treatment sessions were significantly higher than the baseline scores (p < 0.01, n = 29). VTI measurements showed a significant increase in maximal pressure resistance (kPa) of both the anterior and posterior vaginal walls at a 10−12-month post-treatment visit compared with pre-treatment controls (p < 0.001; n = 16). Histological examination showed that laser treatment led to increases in the thickness of the stratified squamous epithelium layer and density of connective tissues in the lamina propria. Conclusions: Fractional CO2 vaginal laser treatment can improve both vaginal health and sexual function and restore vaginal biomechanical properties by increasing vaginal tissue tightening and improving vaginal tissue integrity in Asian women. Our data support that fractional CO2 vaginal laser is a valid treatment modality for VL.
DOI: 10.3390/jcm11175201 논문 보기 Clinical Evaluation of Safety and Efficacy of Radiofrequency-Assisted Lipolysis on Breast Envelope and Nipple-Areola Complex Position.
Unger JG, Agochukwu-Nwubah N, Theodorou S et al. ·Plastic and reconstructive surgery ·2022 ·cited 4
초록 펼치기
Background/Objectives: "Ozempic face" is an aesthetic side effect associated with the use of the antidiabetic agent Ozempic (semaglutide), characterized by a prematurely aged and fatigued facial appearance due to rapid weight loss. Currently, treatment options for this condition are limited. In this study, we present our clinical experience with the BodyTite device, provided by InMode Italy S.r.l. (Rome, Italy). Materials and Methods: We report a case series involving 24 patients (19 women and 5 men, aged 27-65 years), treated with subdermal bipolar radiofrequency (Endotissutal Bipolar Radiofrequency) between 2023 and 2024. All patients underwent a minimum follow-up of 12 months. At the end of the follow-up period, patients rated their satisfaction on a from 0 to 10 scale, and an independent expert assessed the stability of clinical outcomes. Results: The majority of patients reported high satisfaction levels (≥8), which correlated with the independent expert's evaluation of treatment efficacy and result stability. The only observed adverse event was transient cutaneous erythema. Conclusions: "Ozempic face" is an increasingly common side effect associated with newer classes of antidiabetic medications. Although these drugs offer significant metabolic benefits, the accompanying facial volume loss and aging are often poorly tolerated by patients. Our findings suggest that subdermal bipolar radiofrequency represents a safe, low-risk, and cost-effective therapeutic option for the aesthetic management of Ozempic face. Radiofrequency-based devices are used frequently in plastic surgery procedures. In the current literature, no comparative experimental study has demonstrated the histologic and immunologic effects of these devices, which are used frequently in the facial area. In this study, the authors investigated the histologic and immunologic effects of bipolar radiofrequency (BodyTite) and microneedle radiofrequency (Morpheus 8) devices in the rat abdominal region. A total of 24 rats were used in this study. The rats were divided into 4 groups: controls (group 1), BodyTite applied to the abdominal region (group 2), Morpheus 8 applied to the abdominal region (group 3), and both Morpheus 8 and BodyTite applied to the abdominal region (group 4). The histologic and immunologic features of the tissues, collagen formation, and desmosome structures were examined using light microscopy. Collagens in group 2 were thinner than those in the other groups. In addition, there were fewer vessels in group 3. The collagen scores were as follows: group 2, 1.5; group 3, 2; and group 4, 3. Vascular endothelial growth factor scores were 2.5 in group 2, 2 in group 3, and 3 in group 4. The collagen score in group 2 and vascular endothelial growth factor score in group 3 were significantly lower than in the other groups. In addition, the bonds between desmosomes in group 3 were found to be looser using electron microscopy. Collagen morphology in groups 3 and 4 was found to be similar to that in group 1. Radiofrequency-based devices increased tissue regeneration and healing. The use of radiofrequency devices has increased in plastic surgery practice over the past 2 decades, particularly emerging as a unique alternative for nonsurgical candidates. There is a lack of experimental studies concerning these devices, which are commonly used in clinical practice. In his practice, the author has been using noninvasive devices, including Evolve X-radiofrequency-based procedure for tightening of the skin, melting of the subdermal fat deposits and muscle stimulation, all done simultaneously together and truSculpt flex-electrical muscle stimulation. Minimally invasive procedures include BodyTite, FaceTite, and AccuTite, radiofrequency-based procedures for permanent fat destruction and tightening of the skin. Morpheus8 and Morpheus8 Body are radiofrequency based-procedures for tightening of the skin. VASERlipo is an ultrasound-based procedure for liposuction and muscle definition. Vibrational type of liposuction has been used for the purpose of liposuction and muscle definition in combination with VASERlipo. Axillary breast tissue includes any combination of fat, nipple, areolae, and glandular tissue alongside breasts and affects 2%-6% of women and 1%-3% of men. Patients may experience functional and/or cosmetic concerns due to axillary breast tissue. There are nonsurgical options for its removal, such as CoolSculpting and Kybella, and surgical options such as liposuction, BodyTite liposuction, and excision. Determining which technique to use in each case is critical in achieving an excellent outcome. Currently, there are no established treatment algorithms for the removal of axillary breast tissue. A retrospective review between January 1, 2013, and June 20, 2022, was performed. Data that were extracted included age, BMI, date of procedure, procedure, fat suctioned, tissue excised, and follow-up period. The authors analyzed outcomes and formulated a treatment algorithm based on tissue type (fat versus glandular), amount of tissue excess, skin laxity, and accessory nipple presence. A total of 43 patients (83 axillae) met our inclusion criteria and were included in our analysis. All patients were female with a mean age of 35.5 ± 10.9 years, a mean BMI of 23.0 ± 3.1, and a mean follow-up period of 8.8 ± 11.1 months. For inclusion, patients had to have undergone CoolSculpting, liposuction, BodyTite liposuction, liposuction with excision, or excision alone. All patients tolerated the procedures well and reported no serious complications. Nonsurgical and surgical removal of axillary breast tissue is safe and effective. The algorithm presented can be utilized by plastic and reconstructive surgeons to ensure optimal results for axillary breast tissue removal. Body contouring surgery is increasingly requested by patients, both for aesthetic and post-bariatric purposes. There has also been a rapid increase in demand for noninvasive aesthetic treatments. While brachioplasty is burdened by numerous complications and unsatisfactory scars, and conventional liposuction is unsuitable for all patients, nonsurgical arm remodeling performed with radiofrequency-assisted liposuction (RFAL) allows to effectively treat most of patients, regardless of the amount of fat and ptosis of the skin and avoiding surgical excision. A prospective study was conducted on 120 consecutive patients who presented to the author's private clinic and required upper arm remodeling surgery for aesthetic purposes or after weight loss. Patients were classified according to the modified classification of El Khatib and Teimourian. Pre- and posttreatment upper arm circumferences were taken after 6 months of follow-up to assess the degree of skin retraction obtained by treating the arm with RFAL. A satisfaction questionnaire regarding the appearance of the arms (Body-Q upper arm satisfaction) was administered to all patients before surgery and after 6 months of follow-up. All patients were effectively treated with RFAL, and no cases required conversion to brachioplasty. The average reduction in arm circumference was 3.75 cm at 6 months follow-up, and patients' satisfaction increased from 35 to 87% posttreatment. Radio frequency is a valid tool to treat most patients with upper limbs skin laxity, with significant aesthetic results and a high degree of patient satisfaction, regardless of the degree of skin ptosis and lipodystrophy of the arm. This journal requires that authors assign a level of evidence to each article. For a full description of these evidence-based medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 . Breast ptosis as a result of pregnancy and/or breastfeeding, age, genetics, and weight loss is a common complaint among women visiting a plastic surgeon. This study sought to ev
DOI: 10.1097/PRS.0000000000009729 논문 보기 The efficacy of polycaprolactone filler injection on enlarged facial pores.
Marefat A, Dadkhahfar S, Tahvildari A et al. ·Dermatologic therapy ·2022 ·cited 4
초록 펼치기
Forehead filler injections have become a popular nonsurgical approach to enhance facial aesthetics by correcting volume deficiencies and improving contours. This anatomy-based approach emphasizes the importance of understanding the complex structural components of the forehead, including fat compartments, muscles, and vascular pathways. Proper diagnosis of forehead depressions-categorized as central, bilateral, mixed, or total types-guides targeted treatment strategies using submuscular or subdermal injection planes. Submuscular injections provide structural support, minimizing risks associated with superficial placement, such as uneven distribution and vascular complications. Techniques tailored to specific anatomic features, particularly in East Asian patients who often present with narrower foreheads, ensure natural and balanced results. Fillers used in this paper are Hyaluronic Acid (Maili, Sinclair) and Polycaprolactone (Ellanse, Sinclair). Combining fillers with botulinum toxin injections can address both dynamic and static wrinkles, achieving comprehensive facial rejuvenation while maintaining natural expressions, which is especially true for Polycaprolactone biostimulator fillers. This integrated approach optimizes aesthetic outcomes and enhances patient satisfaction by delivering smooth, contoured, and youthful forehead appearances. Level of Evidence: Level V. Innovative use of a point-of-care ultrasound (POCUS) device facilitates the diagnosis and management of potential challenges associated with Ellanse treatment. Our case series of 6 patients illustrates the effectiveness of POCUS in managing challenges associated with Ellanse treatment. Ultrasound analysis is performed in all 6 patients, and management decisions are guided by ultrasound findings. Our case series of 6 patients (A, B, C, D, E & F) consists of Ellanse-treated patients. They presented problems associated with (1) facial overfilling, (2) diagnostic challenges, (3) underfilling requiring POCUS-guided treatment, (4) confirmation of nodule dissolution, and (5) pretreatment vascular assessment. Patients A and B presented with complaints of facial overfilling, and ultrasound analysis attributed the overfilling to previous autologous fat grafting and hyaluronic acid filler treatments respectively. Patient C complained of facial cheekbone prominence after receiving 26 mL of Ellanse in her entire face over 3 years. The patient was reassured that her cheek prominence was secondary to neocollagenesis following ultrasound analysis and refused further intervention. Patient D had successful dissolution of a nodule associated with Ellanse, and this was confirmed with photographs and POCUS imaging. Patient E had underdevelopment of collagen in the left midcheek following initial Ellanse treatment 3 months ago. 0.2 mL of additional Ellanse was injected with a 25G cannula under POCUS guidance to the left cheek with satisfactory correction. Patient F had three previous sessions of Ellanse treatments. She underwent vascular anatomy analysis with an ultrasound Doppler mode prior to the fourth Ellanse treatment. The presence of dense neocollagenesis following Ellanse can alter vascular patterns. A preprocedural analysis is recommended in planning subsequent treatment. Our limited case series of 6 patients provides useful insights into the effectiveness of POCUS as the initial imaging modality of choice when managing Ellanse-treated patients. POCUS imaging provides valuable diagnostic information (Patient A, B, C and D) and therapeutic purposes such as POCUS guided injection and pretreatment assessment (Patient D and E). POCUS can be the initial imaging modality of choice as it is convenient and allows clinical management to be made based on imaging findings. This study aimed to investigate the effects of hyaluronic acid rejuvenating complex, polycaprolactone, and their combination on skin wound healing, assessing their potential to accelerate tissue regeneration and optimize healing outcomes. Forty eight Wistar Albino rats were randomly divided into four groups. Group 1 received hyaluronic acid rejuvenating complex injection, Group 2 received polycaprolactone injection, and Group 3 received a combination of both. Group 4 served as the control, undergoing incision without intervention. Skin biopsies were collected at baseline, day 7, and day 14 postincision. Wound healing was evaluated histologically using hematoxylin and eosin (H&E) and Masson's trichrome staining, focusing on epithelial thickness, collagen synthesis, and inflammatory cell infiltration. The combination therapy group (Group 3) exhibited the most pronounced wound healing response, demonstrating significantly accelerated re-epithelialization, enhanced collagen deposition, and well-structured granulation tissue by days 7 and 14. Additionally, inflammatory cell infiltration was markedly reduced, indicating a faster transition from the inflammatory to the proliferative phase. Compared to single-agent treatments, the combined approach resulted in superior tissue remodeling and a more efficient healing process. The dual administration of hyaluronic acid rejuvenating complex and polycaprolactone offers a synergistic effect, significantly enhancing skin wound healing compared to monotherapies. These findings highlight the potential of combination therapy as a promising strategy for improving wound repair and tissue regeneration in aesthetic and regenerative dermatology. Ellanse is a polycaprolactone-based collagen stimulator that is rarely associated with the formation of palpable nodules. The current management of palpable nodules include triamcinolone injection, consumption of oral methotrexate, and surgical excision. The absence of an effective reversal agent that is safe has limited the popularity of Ellanse as a facial rejuvenation modality. This article presents a dual focus (1) a case series demonstrating the efficacy of the iCare technique in treating 10 nodules from Ellanse M treatment in three patients and (2) an experimental study investigating the in vitro and in vivo dissolution of Ellanse M aliquots. In the case series, nodules, which have persisted for an average of 2 years following initial Ellanse M treatment, are effectively managed with the iCare technique. The iCare technique of dissolution involves injecting a collagenase mixture that is five times the initial injected volume of Ellanse. The case series finding demonstrates the iCare technique as a viable solution in managing Ellanse-associated nodules. An allergy test is also conducted prior to injection of collagenase mixture to demonstrate the safety of collagenase mixture. An experiment is conducted by mixing 0.1 mL Ellanse M aliquots with 0.5 mL collagenase mixture (Slide X). Controls are provided by adding 0.5 mL of lignocaine 2% and adrenaline 1:80 000 (Slide L), 0.5 mL hyaluronidase (Slide H), 0.5 mL of 40 mg/mL of triamcinolone (Slide T) separately to 0.1 mL Ellanse M aliquots. Ellanse M is converted from a gel into a solution by collagenase mixture (X) while it is not affected by lignocaine and adrenaline (L), hyaluronidase (H), or triamcinolone (T). The conversion of Ellanse gel into a solution occurs within 5 min of adding the mixture. The case series demonstrates the iCare technique's efficacy in addressing delayed onset nodules associated with Ellanse treatment. The experimental study demonstrates in vitro and in vivo dissolution of injected Ellanse aliquots. This article offers a promising solution to significant issues associated with Ellanse treatment-namely, the formation of nodules and the lack of an effective fast-acting reversal agent. Nonsurgical rhinoplasty or rhinomodelation is a sought-after procedure in aesthetic practice. The current product of choice remains hyaluronic acid (HA) because of its ease of use and
DOI: 10.1111/dth.15600 논문 보기 Effectiveness of jawline, jaw angle, and marionette lines correction in combination with double needles threads (APTOS) and a collagen-stimulating dermal filler (ELLANSE): An innovative technique.
Rezaee Khiabanloo S, Nabie R, Aalipour E ·Journal of cosmetic dermatology ·2022 ·cited 3
초록 펼치기
Forehead filler injections have become a popular nonsurgical approach to enhance facial aesthetics by correcting volume deficiencies and improving contours. This anatomy-based approach emphasizes the importance of understanding the complex structural components of the forehead, including fat compartments, muscles, and vascular pathways. Proper diagnosis of forehead depressions-categorized as central, bilateral, mixed, or total types-guides targeted treatment strategies using submuscular or subdermal injection planes. Submuscular injections provide structural support, minimizing risks associated with superficial placement, such as uneven distribution and vascular complications. Techniques tailored to specific anatomic features, particularly in East Asian patients who often present with narrower foreheads, ensure natural and balanced results. Fillers used in this paper are Hyaluronic Acid (Maili, Sinclair) and Polycaprolactone (Ellanse, Sinclair). Combining fillers with botulinum toxin injections can address both dynamic and static wrinkles, achieving comprehensive facial rejuvenation while maintaining natural expressions, which is especially true for Polycaprolactone biostimulator fillers. This integrated approach optimizes aesthetic outcomes and enhances patient satisfaction by delivering smooth, contoured, and youthful forehead appearances. Level of Evidence: Level V. Innovative use of a point-of-care ultrasound (POCUS) device facilitates the diagnosis and management of potential challenges associated with Ellanse treatment. Our case series of 6 patients illustrates the effectiveness of POCUS in managing challenges associated with Ellanse treatment. Ultrasound analysis is performed in all 6 patients, and management decisions are guided by ultrasound findings. Our case series of 6 patients (A, B, C, D, E & F) consists of Ellanse-treated patients. They presented problems associated with (1) facial overfilling, (2) diagnostic challenges, (3) underfilling requiring POCUS-guided treatment, (4) confirmation of nodule dissolution, and (5) pretreatment vascular assessment. Patients A and B presented with complaints of facial overfilling, and ultrasound analysis attributed the overfilling to previous autologous fat grafting and hyaluronic acid filler treatments respectively. Patient C complained of facial cheekbone prominence after receiving 26 mL of Ellanse in her entire face over 3 years. The patient was reassured that her cheek prominence was secondary to neocollagenesis following ultrasound analysis and refused further intervention. Patient D had successful dissolution of a nodule associated with Ellanse, and this was confirmed with photographs and POCUS imaging. Patient E had underdevelopment of collagen in the left midcheek following initial Ellanse treatment 3 months ago. 0.2 mL of additional Ellanse was injected with a 25G cannula under POCUS guidance to the left cheek with satisfactory correction. Patient F had three previous sessions of Ellanse treatments. She underwent vascular anatomy analysis with an ultrasound Doppler mode prior to the fourth Ellanse treatment. The presence of dense neocollagenesis following Ellanse can alter vascular patterns. A preprocedural analysis is recommended in planning subsequent treatment. Our limited case series of 6 patients provides useful insights into the effectiveness of POCUS as the initial imaging modality of choice when managing Ellanse-treated patients. POCUS imaging provides valuable diagnostic information (Patient A, B, C and D) and therapeutic purposes such as POCUS guided injection and pretreatment assessment (Patient D and E). POCUS can be the initial imaging modality of choice as it is convenient and allows clinical management to be made based on imaging findings. This study aimed to investigate the effects of hyaluronic acid rejuvenating complex, polycaprolactone, and their combination on skin wound healing, assessing their potential to accelerate tissue regeneration and optimize healing outcomes. Forty eight Wistar Albino rats were randomly divided into four groups. Group 1 received hyaluronic acid rejuvenating complex injection, Group 2 received polycaprolactone injection, and Group 3 received a combination of both. Group 4 served as the control, undergoing incision without intervention. Skin biopsies were collected at baseline, day 7, and day 14 postincision. Wound healing was evaluated histologically using hematoxylin and eosin (H&E) and Masson's trichrome staining, focusing on epithelial thickness, collagen synthesis, and inflammatory cell infiltration. The combination therapy group (Group 3) exhibited the most pronounced wound healing response, demonstrating significantly accelerated re-epithelialization, enhanced collagen deposition, and well-structured granulation tissue by days 7 and 14. Additionally, inflammatory cell infiltration was markedly reduced, indicating a faster transition from the inflammatory to the proliferative phase. Compared to single-agent treatments, the combined approach resulted in superior tissue remodeling and a more efficient healing process. The dual administration of hyaluronic acid rejuvenating complex and polycaprolactone offers a synergistic effect, significantly enhancing skin wound healing compared to monotherapies. These findings highlight the potential of combination therapy as a promising strategy for improving wound repair and tissue regeneration in aesthetic and regenerative dermatology. Ellanse is a polycaprolactone-based collagen stimulator that is rarely associated with the formation of palpable nodules. The current management of palpable nodules include triamcinolone injection, consumption of oral methotrexate, and surgical excision. The absence of an effective reversal agent that is safe has limited the popularity of Ellanse as a facial rejuvenation modality. This article presents a dual focus (1) a case series demonstrating the efficacy of the iCare technique in treating 10 nodules from Ellanse M treatment in three patients and (2) an experimental study investigating the in vitro and in vivo dissolution of Ellanse M aliquots. In the case series, nodules, which have persisted for an average of 2 years following initial Ellanse M treatment, are effectively managed with the iCare technique. The iCare technique of dissolution involves injecting a collagenase mixture that is five times the initial injected volume of Ellanse. The case series finding demonstrates the iCare technique as a viable solution in managing Ellanse-associated nodules. An allergy test is also conducted prior to injection of collagenase mixture to demonstrate the safety of collagenase mixture. An experiment is conducted by mixing 0.1 mL Ellanse M aliquots with 0.5 mL collagenase mixture (Slide X). Controls are provided by adding 0.5 mL of lignocaine 2% and adrenaline 1:80 000 (Slide L), 0.5 mL hyaluronidase (Slide H), 0.5 mL of 40 mg/mL of triamcinolone (Slide T) separately to 0.1 mL Ellanse M aliquots. Ellanse M is converted from a gel into a solution by collagenase mixture (X) while it is not affected by lignocaine and adrenaline (L), hyaluronidase (H), or triamcinolone (T). The conversion of Ellanse gel into a solution occurs within 5 min of adding the mixture. The case series demonstrates the iCare technique's efficacy in addressing delayed onset nodules associated with Ellanse treatment. The experimental study demonstrates in vitro and in vivo dissolution of injected Ellanse aliquots. This article offers a promising solution to significant issues associated with Ellanse treatment-namely, the formation of nodules and the lack of an effective fast-acting reversal agent. Nonsurgical rhinoplasty or rhinomodelation is a sought-after procedure in aesthetic practice. The current product of choice remains hyaluronic acid (HA) because of its ease of use and
DOI: 10.1111/jocd.15042 논문 보기 1,550 nm Erbium-Doped and 1,927 nm Thulium Nonablative Fractional Laser System: Best Practices and Treatment Setting Recommendations.
Friedman PM, Dover JS, Chapas A et al. ·Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.] ·2022 ·cited 3
초록 펼치기
Following Nonablative fractional Fraxel laser (NAFL), a well-established treatment for skin rejuvenation, immediate post-procedural care is essential to address any potential complications and accelerate the healing process. To evaluate the efficacy and patient satisfaction of a topical skincare regimen containing vitamin C, vitamin E, and ferulic acid-CE Ferulic serum (CEF) following NAFL treatment in the Chinese population. In this randomized, investigator-blinded, split-face, controlled trial, patients with mild-to-moderate facial photodamage were randomized to receive CEF treatment on one side of the face and normal saline (NS) on the other side immediately after the NAFL procedure and daily during the 7-day follow-up. The primary endpoint was the change from baseline in erythema score on Day 7, with key secondary endpoints including changes from baseline in erythema index (EI), melanin index (MI), transepidermal water loss, skin hydration, skin sebum content, scabbing, edema, overall patient satisfaction, and post-procedure pain. In total, 50 patients (female 45/50) were enrolled in this study, with a mean age of 31.6 years. The mean change from baseline in erythema score was significantly lower on the CEF side than on the NS side on Day 7 post-NAFL treatment (0.04 ± 0.40 vs. 0.18 ± 0.48, p = 0.011). The CEF side also exhibited improved changes in EI, MI, and skin hydration, as well as higher overall satisfaction and less pain compared with the NS side. Applying CEF after NAFL treatment reduced erythema progression, maintained skin hydration, and promoted the healing process compared with NS. Chinese Clinical Trial Registry: ChiCTR2300069246. Multicentric Castleman's disease (MCD) with cutaneous involvement has rarely been discussed in dermatologic literature, with few reports. Cutaneous lesions in MCD may induce deep scars, causing a significant impact in the daily life of the patients. The treatment of Castleman's disease (CD) is usually a challenge, especially in case of cutaneous involvement. We report the case of a 35-year-old Caucasian man with a 3-year-old history of MCD with cutaneous involvement that we treated with a combined therapy characterized by siltuximab and 1,927 nm fractional laser. The patient showed a therapeutic response, characterized by a reduction of systemic symptoms and cutaneous manifestations. We believe that the combination of siltuximab and 1,927 nm fractional laser might have a synergistic beneficial role in patients with cutaneous iMCD and maximize esthetic outcomes. Anyway, additional evidence is needed to validate our findings. Microbotox technique, intradermal injection of microdroplets of botulinum toxin, is a favorable rejuvenation approach in subjects who prefer more natural appearance. To determine the best injection techniques (dosage, concentration, as well as number and location of injection points), efficacy and side effects of this innovative technique for facial rejuvenation. We conducted a search in Pubmed, Embase, Web of Science, and Google Scholar databases from conception until October 2021 with keywords "microbotox" OR "mesobotox" OR "intradermal injection" AND "botulinum toxin" AND "rejuvenation" AND "wrinkle" AND "face-lift." Twenty articles were included in this review article. Different types of formulation including onabotulinum toxin A (OBA), abobotulinum toxin A (ABO), and incobotulinum toxin A (IBA) were used. The most used concentrations were 10-20 u/cc of OBA. Number of injection points varied from 4 (forehead and periorbital areas) to 999 (entire face) with 2 mm to 2 cm apart. Adjuvant treatment modalities were cross-linked hyaluronic acid, intense pulsed laser, and Fraxel laser. Most studies reported the initial results appeared after 5-14 days of procedure, lasting for nearly 3-6 months. Microbotox is an efficient and attractive method for facial rejuvenation, mid-lower face-lifting, and fine wrinkles reduction in forehead, periocular, and cheek regions, especially in younger-aged subjects. Furthermore, it is a suitable treatment for neck rejuvenation and recontouring of lower mandibular border, particularly in older subjects with marked skin laxity. The Fraxel Dual laser system (Solta Medical, Inc., Bothell, WA) contains a 1,550 and 1,927 nm wavelength single handpiece with different indications for each wavelength. To discuss treatment setting recommendations and best practices for select on-label and investigational applications of the 1,550 and 1,927 nm dual laser system. Eight board-certified dermatologists with 10 or more years of experience with the 1,550 and 1,927 nm laser system completed an online survey about their clinical experience with the system and then participated in a roundtable to share clinical perspectives and best practices for using the laser system. For all Fitzpatrick skin types, treatment recommendations were described for selected approved indications for the 1,550 and 1,927 nm laser system, including both lasers in combination. Treatment recommendations were also reached for investigational applications with the 1,550 nm laser and 1,927 nm laser. Best practices for using the lasers during the treatment session to achieve optimal outcomes and decrease the post-treatment recovery time were compiled. The 1,550 and 1,927 nm dual laser system is effective for a wide range of aesthetic and therapeutic applications, on and off the face and across all Fitzpatrick skin types. Following our survey, we can appreciate that a variety of laser platforms exist to rejuvenate the skin by resurfacing the outer layer of the skin as well as heating the lower layers of the dermis. Based on reliable clinical effectiveness and a limited side effect profile, we can confirm that nonablative fractionated technologies greatly improve the appearance of lentigines, rhytids; eliminate sun damage, attenuate scarring due to acne and other causes; and treat hyperpigmentation. The Fraxel (Solta Medical) laser system delivers pulses across a wide range of density and energy levels. We determined that when increasing the pulse energy this led to an increase in thermolysis microzone depth and width without damaging the surrounding tissue. Due to its performance and various clinical applications, Fraxel laser can be optimally considered to be the gold standard for skin rejuvenation. Sebaceous hyperplasia (SH) is a common skin presentation in adults. Due to their unwanted yellow papular appearance, patients may desire their removal. Although several treatment modalities have been reported, the full range and efficacy of options are unclear. To determine the efficacy of laser modalities in the treatment of SH. The authors will also specifically assess the efficacy, recurrence rate and side effect profile of SH treatment with Er:YAG wavelength using a variable long pulsed (VLP) Er:YAG laser (SP Dynamis Fotona laser, Ljubljana, Slovenia) Methods & Materials: A comprehensive literature search was performed through PubMed, EMBASE, and Web of Science, using the search terms [(sebaceous hyperplasia)] and [(laser[s], Er:Yag, Er:Glass, Fraxel, CO2, PDL, Pulse dye laser, Diode, Xe-Cl, Excimer, Argon, KTP, Ruby, Alexandrite or Nd:YAG)]. The search yielded a total of 119 results and 8 were identified as relevant to this reviewResults: Pulse dye laser (PDL) provides a wide range of treatment results from complete reduction to flattening of the SH without significant adverse events; recurrence rates were unreported. Short PDL showed faster treatment response than long PDL. CO2 laser can produce considerable positive cosmetic outcomes with marked clinical improvement without any recurrence, but significant adverse effects have been reported. The 1450-nm diode laser has been described to produce good (75%) clinical improvement and lesion shrinkage ranging from 50% to greater than 75% without lasting adverse effects. In
DOI: 10.1097/DSS.0000000000003321 논문 보기 Protocol for Measuring Concentrations of Extracellular Vesicles in Human Blood Plasma with Flow Cytometry.
Hajji N, Hau CM, Nieuwland R et al. ·Methods in molecular biology (Clifton, N.J.) ·2022 ·cited 3
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The levels of platelet-derived extracellular vesicles (pEVs) have been reported as elevated in acute ischemic stroke (IS). However, the results of studies remain equivocal. This prospective, case-control study included 168 patients with IS, 63 matched disease controls (DC), and 21 healthy controls (HC). Total pEVs concentration, the concentration of phosphatidylserine-positive pEVs (PS+pEVs), the percentage of PS+pEVs (%PS+pEVs) and the concentration of pEVs with expression of CD62P+, CD40L+, CD31+, and active form of GPIIb/IIIa receptor (PAC-1+) were assessed on days 1, 3, 10, and 90 with the Apogee A50-Micro flow cytometer. The concentrations of pEVs, PS+pEVs, and %PS+pEVs were significantly higher after IS vs. HC (p < 0.001). PS+pEVs were higher after stroke vs. controls (p < 0.01). The concentrations of pEVs with expression of studied molecules were higher on D1 and D3 after stroke vs. controls. The concentration of pEVs after platelet stimulation with ADP was significantly diminished on D3. IS most notably affects the phenotype of pEVs with a limited effect on the number of pEVs. Ischemic stroke moderately disturbs platelet microvesiculation, most notably in the acute phase, affecting the phenotype of pEVs, with a limited impact on the number of pEVs. The accumulation of α-synuclein (α-syn), an essential step in PD development and progression, is observed not only in neurons but also in glia, including astrocytes. The mechanisms regulating astrocytic α-syn level and aggregation remain unclear. More recently, it has been demonstrated that a part of α-syn spreading occurs through extracellular vesicles (EVs), although it is unknown whether this process is involved in astrocytes of PD. It is known, however, that EVs derived from the central nervous system exist in the blood and are extensively explored as biomarkers for PD and other neurodegenerative disorders. Primary astrocytes were transfected with A53T α-syn plasmid or exposed to α-syn aggregates. The level of astrocyte-derived EVs (AEVs) was assessed by nanoparticle tracking analysis and immunofluorescence. The lysosomal function was evaluated by Cathepsin assays, immunofluorescence for levels of Lamp1 and Lamp2, and LysoTracker Red staining. The Apogee assays were optimized to measure the GLT-1+ AEVs in clinical cohorts of 106 PD, 47 multiple system atrophy (MSA), and 103 healthy control (HC) to test the potential of plasma AEVs as a biomarker to differentiate PD from other forms of parkinsonism. The number of AEVs significantly increased in primary astrocytes with α-syn deposition. The mechanism of increased AEVs was partially attributed to lysosomal dysfunction. The number of α-syn-carrying AEVs was significantly higher in patients with PD than in HC and MSA. The integrative model combining AEVs with total and aggregated α-syn exhibited efficient diagnostic power in differentiating PD from HC with an AUC of 0.915, and from MSA with an AUC of 0.877. Pathological α-syn deposition could increase the astrocytic secretion of EVs, possibly through α-syn-induced lysosomal dysfunction. The α-syn-containing AEVs in the peripheral blood may be an effective biomarker for clinical diagnosis or differential diagnosis of PD. Mitochondrial dysfunction has pleiotropic effects and is frequently caused by mitochondrial DNA mutations. However, factors such as significant variability in clinical manifestations make interpreting the pathogenicity of variants in the mitochondrial genome challenging. Here, we present APOGEE 2, a mitochondrially-centered ensemble method designed to improve the accuracy of pathogenicity predictions for interpreting missense mitochondrial variants. Built on the joint consensus recommendations by the American College of Medical Genetics and Genomics/Association for Molecular Pathology, APOGEE 2 features an improved machine learning method and a curated training set for enhanced performance metrics. It offers region-wise assessments of genome fragility and mechanistic analyses of specific amino acids that cause perceptible long-range effects on protein structure. With clinical and research use in mind, APOGEE 2 scores and pathogenicity probabilities are precompiled and available in MitImpact. APOGEE 2's ability to address challenges in interpreting mitochondrial missense variants makes it an essential tool in the field of mitochondrial genetics. Extracellular vesicles (EVs) in body fluids are explored as disease biomarkers, but EV concentrations measured by flow cytometers (FCMs) are incomparable. To improve data comparability, new reference materials with physical properties resembling EVs and reference procedures are being developed. The validation of new reference materials and procedures requires biological test samples. We developed a human plasma EV test sample (PEVTES) that i) resembles subcellular particles in plasma, ii) is ready-to-use, iii) is flow cytometry-compatible, and iv) is stable. The PEVTES was prepared from human plasma of 3 fasting donors. EVs were immunofluorescently stained with antibodies against platelet-specific (CD61) and erythrocyte-specific (CD235a) antigens or lactadherin. To reduce the concentration of soluble proteins, lipoproteins, and unbound reagents, stained EVs were isolated from plasma by size-exclusion chromatography. After isolation, the PEVTES was filtered to remove remnant platelets. PEVTESs were diluted in cryopreservation agents, dimethyl sulfoxide, glycerol, or trehalose and stored at -80 °C for 12 months. After thawing, stained EV concentrations were measured with a calibrated FCM (Apogee A60-Micro). We demonstrate that the developed PEVTES resembles subcellular particles in human plasma when measured using FCM and that the concentrations of prestained platelet-derived, erythrocyte-derived, and lactadherin+ EVs in the PEVTES are stable during storage at -80 °C for 12 months when stored in trehalose. The PEVTES i) resembles subcellular particles in plasma, ii) is ready-to-use, iii) is flow cytometry-compatible, and iv) is stable. Therefore, the developed PEVTES is an ideal candidate to validate newly developed reference materials and procedures. Flow cytometry is commonly used to detect cell-derived extracellular vesicles in body fluids such as blood plasma. However, continuous and simultaneous illumination of multiple particles at or below the detection limit may result in the detection of a single event. This phenomenon is called swarm detection and leads to incorrect particle concentration measurements. To prevent swarm detection, sample dilution is recommended. Since the concentration of particles differs between plasma samples, finding the optimal sample dilution requires dilution series of all samples, which is unfeasible in clinical routine. Here we developed a practical procedure to find the optimal sample dilution of plasma for extracellular vesicle flow cytometry measurements in clinical research studies. Dilution series of 5 plasma samples were measured with flow cytometry (Apogee A60-Micro), triggered on side scatter. The total particle concentration between these plasma samples ranged from 2.5 × 109 to 2.1 × 1011 mL-1. Swarm detection was absent in plasma samples when diluted ≥1.1 × 103-fold or at particle count rates <3.0 × 103 events·s-1. Application of either one of these criteria, however, resulted in insignificant particle counts in most samples. The best approach to prevent swarm detection while maintaining significant particle counts was by combining minimal dilution with maximum count rate. To prevent swarm detection in a series of clinical samples, the measurement count rate of a single diluted plasma sample can be used to determine the optimal dilution factor. For our samples, flow cytometer, and settings, the optimal dilution factor is ≥1.1 × 102-
DOI: 10.1007/978-1-0716-2341-1_5 논문 보기 Comparative Pharmacodynamics of Three Different Botulinum Toxin Type A Preparations following Repeated Intramuscular Administration in Mice.
Byun J, Kwak S, Kwon JH et al. ·Toxins ·2022 ·cited 2
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Botulinum toxin (BT) is used therapeutically since the late 1980s. For many years, BT drugs were provided by a small group of manufacturers from Europe and the United States. As BT's use for aesthetic purposes surged, numerous new manufacturers entered the field, particularly from Korea. We want to give an overview about the rapidly expanding and diversifying BT landscape in Korea. Altogether, there are 15 Korean manufacturers of 19 BT drugs registered in Korea, mainly for aesthetic indications. There are 2 Class 1 drugs from 2 Korean manufacturers registered in Korea for export, domestic use and registered in the USA and Europe. These are PrabotulinumtoxinA (Daewoong/Evolus) and LetibotulinumtoxinA (Hugel/Croma Pharma). There are 12 Class 2 drugs from 10 Korean manufacturers registered in Korea for export and domestic use, including Neuronox®, the first Korean BT drug registered in 2006, NivobotulinumtoxinA/Innotox®, the world-wide first liquid BT type A preparation and Coretox®, the world-wide second BT drug without complexing proteins. Innotox® and Toxsta® are currently performing clinical studies in the USA. Additionally, there are 5 Class 3 BT drugs from 5 Korean manufacturers registered in Korea for export use only. 5 Korean manufacturers have 5 drug projects in Korea in advanced development phases. With this, Korea is now the country with the worldwide largest number of BT manufacturers and BT drugs. Gastric botulinum toxin therapy is gaining attention as a non-invasive treatment for obesity. However, existing studies show inconsistent results and standardized protocols remain lacking. We aimed to evaluate the efficacy and safety of a novel whole-stomach injection method emphasizing the antrum and fundus in obese patients in Japan. A total of 144 obese patients (mean age 42.3 years, mean BMI 30.3 kg/m²) underwent gastric botulinum toxin therapy at our institution between February 2023 and November 2024. Coretox (300-400 U) was injected endoscopically across the entire stomach, with increased concentration in the antrum and fundus. Patients were followed for six months post procedure. The primary outcome was the percentage of total body weight loss (%TBWL), and safety was assessed by the occurrence of complications per Clavien-Dindo classification. Mean %TBWL was 6.5% at one month, 10.2% at three months, and 12.2% at six months post treatment. No complications or adverse events were reported. The average procedure time was 5.7 minutes, and all patients completed follow-up as scheduled. We hypothesize that the observed efficacy may be partially attributed to our refined injection technique and individualized BMI-based dosage adjustment, although further controlled studies are needed to validate this approach. Gastric botulinum therapy using a novel full-stomach injection method focusing on the antrum and fundus was found to be both safe and effective in a Japanese obese population. This technique may offer a promising, minimally invasive option for obesity management. Further multicenter and long-term studies are warranted to validate and standardize this approach. The formation of neutralizing antibodies is a growing concern in the use of botulinum neurotoxin A (BoNT/A) as it may result in secondary treatment failure. Differences in the immunogenicity of BoNT/A formulations have been attributed to the presence of pharmacologically unnecessary bacterial components. Reportedly, the rate of antibody-mediated secondary non-response is lowest in complexing protein-free (CF) IncobotulinumtoxinA (INCO). Here, the published data and literature on the composition and properties of the three commercially available CF-BoNT/A formulations, namely, INCO, Coretox® (CORE), and DaxibotulinumtoxinA (DAXI), are reviewed to elucidate the implications for their potential immunogenicity. While all three BoNT/A formulations are free of complexing proteins and contain the core BoNT/A molecule as the active pharmaceutical ingredient, they differ in their production protocols and excipients, which may affect their immunogenicity. INCO contains only two immunologically inconspicuous excipients, namely, human serum albumin and sucrose, and has demonstrated low immunogenicity in daily practice and clinical studies for more than ten years. DAXI contains four excipients, namely, L-histidine, trehalosedihydrate, polysorbate 20, and the highly charged RTP004 peptide, of which the latter two may increase the immunogenicity of BoNT/A by introducing neo-epitopes. In early clinical studies with DAXI, antibodies against BoNT/A and RTP004 were found at low frequencies; however, the follow-up period was critically short, with a maximum of three injections. CORE contains four excipients: L-methionine, sucrose, NaCl, and polysorbate 20. Presently, no data are available on the immunogenicity of CORE in human beings. It remains to be seen whether all three CF BoNT/A formulations demonstrate the same low immunogenicity in patients over a long period of time. Botulinum neurotoxin type A (BoNT/A) causes muscle paralysis by blocking cholinergic signaling at neuromuscular junctions and is widely used to temporarily correct spasticity-related disorders and deformities. The paralytic effects of BoNT/A are time-limited and require repeated injections at regular intervals to achieve long-term therapeutic benefits. Differences in the level and duration of effectivity among various BoNT/A products can be attributed to their unique manufacturing processes, formulation, and noninterchangeable potency units. Herein, we compared the pharmacodynamics of three BoNT/A formulations, i.e., Botox® (onabotulinumtoxinA), Xeomin® (incobotulinumtoxinA), and Coretox®, following repeated intramuscular (IM) injections in mice. Three IM injections of BoNT/A formulations (12 U/kg per dose), 12-weeks apart, were administered at the right gastrocnemius. Local paresis and chemodenervation efficacy were evaluated over 36 weeks using the digit abduction score (DAS) and compound muscle action potential (CMAP), respectively. One week after administration, all three BoNT/A formulations induced peak DAS and maximal reduction of CMAP amplitudes. Among the three BoNT/A formulations, only Coretox® afforded a significant increase in paretic effects and chemodenervation with a prolonged duration of action after repeated injections. These findings suggest that Coretox® may offer a better overall therapeutic performance in clinical settings. Human serum albumin (HSA) has been widely used as a pharmaceutical excipient in Botulinum toxin serotype A (BoNT/A) products that are indicated for use in therapeutics and cosmetics. However, HSA as a human-derived material has some concerns, such as the potential risk of transmission of infectious agents, an insufficient supply, and difficulty in maintaining a certain quality. For those reasons, newly developed BoNT/A products (CORETOX®, Medytox, Inc., Republic of Korea) contained polysorbate 20, a non-human-derived excipient, to replace the HSA. However, most safety studies of polysorbate 20 have been conducted with non-invasive routes of administration, and thus there are a few studies on the safety of polysorbate 20 when administered intramuscularly. To secure the in vivo safety profile of polysorbate 20, a four-week repeated intramuscular dose toxicity study (0.02, 0.1, and 0.4 mg/kg, one injection every two weeks for a total of three injections) was conducted in 66 Sprague-Dawley (SD) rats. An intradermal irritation study was further conducted with 18 New Zealand White (NZW) rabbits. The toxicological evaluation of HSA (0.06 and 0.12 mg/kg) was also carried out as a comparative substance. Systemic and local toxicities were not observed in any of the SD rats or NZW rabbits based on clinical signs, body weight, hematology, clinical biochemistry, macroscopic findings on necropsy, histopathology of the injection site, and alle
DOI: 10.3390/toxins14060365 논문 보기 Evaluation of the 2018-2019 vaccine effectiveness against medically attended influenza-like illness using medical records and claims data.
Doyon-Plourde P, Fortin É, Quach C ·Vaccine ·2022 ·cited 2
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The infraorbital hollow and midcheek groove ("Indian bands") are anatomically complex transition zones where ligamentous, vascular, and fat compartments converge. Safe and predictable correction with hyaluronic acid (HA) fillers requires precise, layer-specific anatomical understanding. To synthesize anatomy-based injection strategies for the infraorbital-midcheek continuum, including diagnostic triage, technique selection, complication mitigation, and ethnic-specific considerations. We conducted a narrative review based on a structured search of MEDLINE, PubMed, and Ovid databases using predefined keywords related to "Dark Circle," "Midcheek Groove," "Indian Band," "Dermal Fillers," and "Facial Anatomy." Eligible anatomical dissections, imaging-based mappings, and clinical outcome studies were qualitatively synthesized; no original patient data were collected, and no PRISMA flow diagram or quantitative meta-analysis was performed. Cannula-assisted subcision to partially release fibrous retaining bands, followed by deep support (deep malar fat pad/suborbicularis oculi fat [SOOF]) and selective superficial blending, appears to improve midcheek groove correction in published series using Maili Volume and Precise. Management of overfill or surface irregularity relies on hyaluronidase and an understanding of product rheology (elastic modulus G', cohesivity, elasticity). However, the available evidence remains heterogeneous and predominantly case-series level, with limited standardized outcomes, patient-reported measures, and long-term follow-up. An anatomy-based, layer-specific approach can enhance predictability and safety for infraorbital-midcheek rejuvenation, but current recommendations are largely experience-driven. Future work should prioritize controlled clinical validation, complication registries, and population-specific optimization of technique with robust, quantitative and patient-centered outcomes. Forehead filler injections have become a popular nonsurgical approach to enhance facial aesthetics by correcting volume deficiencies and improving contours. This anatomy-based approach emphasizes the importance of understanding the complex structural components of the forehead, including fat compartments, muscles, and vascular pathways. Proper diagnosis of forehead depressions-categorized as central, bilateral, mixed, or total types-guides targeted treatment strategies using submuscular or subdermal injection planes. Submuscular injections provide structural support, minimizing risks associated with superficial placement, such as uneven distribution and vascular complications. Techniques tailored to specific anatomic features, particularly in East Asian patients who often present with narrower foreheads, ensure natural and balanced results. Fillers used in this paper are Hyaluronic Acid (Maili, Sinclair) and Polycaprolactone (Ellanse, Sinclair). Combining fillers with botulinum toxin injections can address both dynamic and static wrinkles, achieving comprehensive facial rejuvenation while maintaining natural expressions, which is especially true for Polycaprolactone biostimulator fillers. This integrated approach optimizes aesthetic outcomes and enhances patient satisfaction by delivering smooth, contoured, and youthful forehead appearances. Level of Evidence: Level V. The shape and size of ears significantly influence facial aesthetics. In many Asian cultures, lying ears are not perceived favorably in Asian culture, leading individuals to seek surgical interventions to correct this issue. Also, due to the Ebbinghaus effect, prominent ears create a illusion of a smaller face, which is highly desired in Asians. However, surgeries to create prominent ears are invasive, can involve complications and necessitate a period of recovery. To address this concern, the authors have developed a technique utilizing hyaluronic acid (HA) injections of MAILI range (Sinclair Pharma) to enhance the appearance of lying ears. HA injections were performed at the auriculocephalic sulcus and the helix to increase the cranioauricular angle (CA) and correct lying ears. Patients showed improvements in ear prominence. The cranioauricular angle (CAA) and ear projection (EP) increased immediately after the procedure. No serious complications were noted. The injection of hyaluronic acid (HA) into the ears successfully addressed the issue of lying ears and enhanced the overall facial profile. In addition, it provided a lifting effect that contributed to a more youthful and refined appearance. This minimally invasive procedure did not necessitate any recovery time, and the results were long-lasting and highly satisfactory. Level V. Nasolabial folds significantly impact facial appearance and are a common aesthetic concern. This article reviews anatomic considerations and filler injection techniques for treating these folds, with a focus on the Korean population. The dermal filler used in this study is Maili hyaluronic acid filler (Sinclair Pharma), derived from a novel proprietary manufacturing technology known as OxiFree™ technology (Kylane Laboratoires , Switzerland). The study analyzes various injection techniques, including needle-based and cannula-based approaches, with emphasis on safe and effective practices such as the Fern leaf and Duck walk techniques. A layered injection approach addressing both superficial and deep tissue planes is examined. Three distinct types of nasolabial folds are identified: those caused by volume deficiency, tissue laxity, and muscular attachments. Each type requires a tailored treatment approach. It is not uncommon to find a combination of 2 of the types together in one person. The study highlights the importance of understanding anatomic variations, particularly the course of the facial artery in the Korean population, for safe injection practices. A thorough understanding of nasolabial fold anatomy and appropriate treatment strategies is crucial for achieving optimal outcomes in aesthetic medicine. This is especially important for the nasolabial folds, which are highly mobile, and could easily cause misplaced dermal fillers to migrate. Future research on combination intervention techniques, including botulinum toxin, lipolytic agents, and thread-lifting, may further enhance overall treatment efficacy. Facial asymmetry is a common challenge in esthetic medicine, requiring a comprehensive understanding of three-dimensional rotation patterns- X, Y , and Z axes-that significantly influence treatment outcomes. Traditional correction methods often overlook these rotational dynamics. This manuscript presents a case study of a 38-year-old Asian male patient with facial asymmetry, treated with hyaluronic acid (HA) fillers using a novel approach incorporating facial rotation concepts. By identifying the patient's clockwise facial rotation pattern and applying targeted, asymmetric filler placement, a significant improvement in facial harmony was achieved. The rheological properties of the MaiLi Extreme (Sinclair) were particularly suited for structural correction. This approach highlights the importance of rotation-based assessment and personalised treatment planning in achieving optimal esthetic outcomes. MaiLi-E is a lidocaine-containing cross-linked sodium hyaluronate gel for dermal filling. This prospective, multicenter, randomized, delayed-treatment controlled, evaluator-blinded clinical trial aims to evaluate the efficacy and safety of MaiLi-E for chin augmentation. Participants with mild-to-moderate-severe chin retrusion were enrolled and randomized (2:1) to receive MaiLi-E at study onset (MaiLi-E group) or six months later (control group). The primary efficacy endpoint was the response rate of chin retrusion improvement, defined as the percentage of participants whose China (Allergan) Chin Retrusion Scale score improved by ≥1 point from baseline, assessed by independent investigators at Month 6 post-injection for the MaiLi-E gro
DOI: 10.1016/j.vaccine.2022.08.012 논문 보기 Combination non-invasive radiofrequency and electrical muscle stimulation: A synergistic combination for body contouring.
Dayan E, Chilukuri S, Bucky L et al. ·Journal of cosmetic dermatology ·2022 ·cited 2
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Background: Rosacea is a chronic facial skin disease in which persistent erythema is a significant clinical problem, often resistant to standard therapies. Intensive pulsating light (IPL) has become a recognised and effective method of treating erythema and telangiectasia. The latest recommendations emphasise the advantage of combining subjective clinical assessments with objective imaging analyses in monitoring therapy effects. Methods: A total of 20 patients with rosacea qualified for this study. They were subjected to three polychromatic light procedures (Lumecca, Inmode; wavelength of 515-1200 nm) at 21-day intervals. The skin condition was documented photographically, and the degree of erythema was assessed on the basis of the Clinician Erythema Assessment (CEA) scale and objective analysis of the skin texture, using the parameters of contrast and homogeneity of the grey level co-occurrence matrix (GLCM). Results: A series of three polychromatic light treatments yielded a significant clinical improvement in all patients. The mean CEA value decreased by 61.11%, whereas the GLCM contrast in all the analysed facial areas dropped by about 17%, and homogeneity increased by 4-5%. The effects persisted for at least three months after the treatments. A high correlation of CEA scale results with GLCM parameters (R = 0.81-0.94 for contrast; R = -0.77 to -0.83 for homogeneity) was observed. Conclusions: Three polychromatic light treatments proved to be a very effective method of reducing erythema in rosacea, confirmed by both clinical evaluation and objective imaging analysis. The effects of therapy were durable and clear. Integration of the subjective method (CEA) with GLCM analysis can be a path for future research and clinical practice in the assessment of erythematous skin lesions. Background/Objectives: "Ozempic face" is an aesthetic side effect associated with the use of the antidiabetic agent Ozempic (semaglutide), characterized by a prematurely aged and fatigued facial appearance due to rapid weight loss. Currently, treatment options for this condition are limited. In this study, we present our clinical experience with the BodyTite device, provided by InMode Italy S.r.l. (Rome, Italy). Materials and Methods: We report a case series involving 24 patients (19 women and 5 men, aged 27-65 years), treated with subdermal bipolar radiofrequency (Endotissutal Bipolar Radiofrequency) between 2023 and 2024. All patients underwent a minimum follow-up of 12 months. At the end of the follow-up period, patients rated their satisfaction on a from 0 to 10 scale, and an independent expert assessed the stability of clinical outcomes. Results: The majority of patients reported high satisfaction levels (≥8), which correlated with the independent expert's evaluation of treatment efficacy and result stability. The only observed adverse event was transient cutaneous erythema. Conclusions: "Ozempic face" is an increasingly common side effect associated with newer classes of antidiabetic medications. Although these drugs offer significant metabolic benefits, the accompanying facial volume loss and aging are often poorly tolerated by patients. Our findings suggest that subdermal bipolar radiofrequency represents a safe, low-risk, and cost-effective therapeutic option for the aesthetic management of Ozempic face. Autonomic nerves and ganglia that affect bladder sensation and detrusor contractility are present below the proximal urethra and trigone. Radiofrequency energy has been shown to potentially ablate/modulate these nerves in overactive bladder (OAB) patients. In this study, we intended to establish the safety and efficacy of transvaginal radiofrequency energy delivered via a vaginal Morpheus (Inmode) microneedling device in female patients with OAB. Women with known OAB, both primary and refractory as well as urge-predominant mixed urinary incontinence, were treated in the office setting using transvaginal detrusor nerve radiofrequency ablation to a depth of 7 mm.The primary outcome was the change in urge incontinence episodes on a 3-day voiding diary at 3 months after procedure. Secondary outcomes were the following at 1 and 3 months: the change in urinary frequency and incontinence, Incontinence Impact Questionnaire-7 (IIQ-7), Urinary Distress Inventory-6 (UDI-6), and Patient's Perception of Bladder Condition (PPBC). A pain assessment was collected immediately after the procedure and a Patient Global Impression of Improvement questionnaire was collected at 3 months. From 07/2023 to 02/2024, 32 were enrolled and 31 were followed for 3 months after treatment. Episodes of urgency incontinence, IIQ-7, UDI-6, PPBC, urinary frequency, and episodes of severe urinary urgency, had statistically significant improvement. Significant Analysis of Variance (ANOVA) testing ( P  < 0.001) was encountered with the IIQ-7, UDI-6, PPBC, urinary frequency, and urgency incontinence. No adverse events were encountered. Across all outcome metrics, the transvaginal detrusor nerve radiofrequency ablation for treatment of overactive bladder showed statistically significant improvements. Background: The techniques of choice used in the treatment of extensive vascular lesions of the face are methods based on high-energy light sources, such as lasers and IPL (intense pulsed light). The techniques commonly employed to detect blood vessel abnormalities in skin primarily rely on semi-quantitative or qualitative scales. Methods: The study was conducted on a group of 38 volunteers; a series of three treatments was performed using an IPL source (Lumecca, Inmode, Israel). The vessels' response to the high-energy light was verified using the following quantitative methods: mexametric measurements, hyperspectral imaging, and directional reflectance measurements. Results: In the mexameter measurement, statistically non-significant differences were obtained in the hemoglobin content in the skin condition prior to and following multiple intense pulsed light sessions. Studies performed using a hyperspectral camera showed that at a wavelength of 580 nm, the increase in skin reflectance after the treatment was statistically significant. Total directional reflectance measurements showed that at wavelengths of 400-540 nm and 480-600 nm, following the IPL treatment, the skin reflectance increased statistically significantly. Implementing three consecutive intense pulsed light procedures appears adequate to obtain a clinically satisfactory reduction in vascular changes in the facial skin. Mexametric measurements do not enable the assessment of the reaction of blood vessels to IPL. Conclusions: Hyperspectral imaging is an effective method for the quantitative assessment of skin vascular lesions. The best results in the assessment of vascular lesions using hyperspectral imaging are obtained at wavelengths of 420 nm and 580 nm. The hemispheric directional reflectance method allows for a quick, accurate, and repeatable assessment of vascular skin changes. Surgeons and providers in aesthetic medicine seek noninvasive devices that can be utilized for safe, efficient, and effective body contouring. Patient demand has propelled the development of novel devices that can simultaneously improve skin laxity, adipolysis along with stimulation of muscle hypertrophy. To determine the efficacy of body contouring after 3 treatments using the noninvasive Transform (InMode, Lake Forest, CA) device. A prospective, multicenter study was performed. Outcomes evaluated include: standardized caliper and ultrasound measurements of abdominal skin/soft-tissue thickness, waist circumference, histologic evaluation, patient comfort, and satisfaction assessments. Forty-four patients were successfully enrolled in the study and completed the series of 3 treatments which involved combined electrical muscle stimulation (EMS) and noninvasive bipolar radiofrequency (RF). Abdominal ultrasound measurements reveal a
DOI: 10.1111/jocd.15393 논문 보기 A clinical study to evaluate the safety and efficacy performance of the Morpheus8 applicator for the treatment of cellulite: A case series.
Ugonabo N, Ward R, Chapas A ·Journal of cosmetic dermatology ·2022
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Hidradenitis suppurativa (HS) remains a therapeutically challenging disease despite expanding research and evolving systemic treatments. Energy-based modalities, such as fractional microneedling radiofrequency (FMR), are being increasingly explored as novel treatment options. To evaluate the real-world efficacy and safety of Morpheus8-based FMR treatment in patients with HS. This retrospective analysis included 25 HS patients treated at a tertiary dermatology center. Seventeen patients who completed ≥ 2 FMR sessions were included in the efficacy analysis. Outcomes were assessed by the International Hidradenitis Suppurativa Severity Score System (IHS4) and IHS4-55 (≥ 55% reduction). High-frequency ultrasound (HFUS) was used in selected cases to assess treatment response and inflammatory changes. Sixteen of the 17 patients (94.1%) evaluated for efficacy showed clinical improvement, and nine (52.9%) achieved an IHS4-55 response. The mean IHS4 reduction was 4.6 ± 2.5. The highest response rates were observed in the face, chest, and gluteal regions, while groin and thigh showed the lowest. HFUS confirmed a reduction in inflammation. Treatment was generally well tolerated, with pain cited as the most common reason for discontinuation in 3 of 25 patients (12%). FMR appears to be a safe and effective treatment option for patients with moderate-to-severe HS, including those with refractory disease and lesions in anatomically challenging areas. Clinical outcomes in our cohort were comparable to those reported for advanced systemic agents and other technology-based interventions. These findings support FMR's potential role in personalized HS management - either as a standalone intervention or in combination with systemic or procedural treatments. This study evaluated a novel approach combining low-energy Morpheus8 radiofrequency (RF) microneedling and nanofat grafting for facial rejuvenation, aiming to preserve adipose tissue while enhancing skin quality. A retrospective analysis was conducted on 20 patients (aged 20-45 y) treated with nanofat injections immediately after low-energy RF microneedling. Outcomes included Global Aesthetic Improvement Scale scores and nonsurgical parameters (pore visibility, skin luminosity, and fine wrinkles), assessed at 1, 3, and 12 months posttreatment. Pretreatment Global Aesthetic Improvement Scale scores (mean = 3.35, SD = 0.61) showed significant improvement posttreatment (mean = 1.76, SD = 0.87; P < 0.001). Sustained enhancement was observed at 3 months (mean = 1.52, SD = 0.63; P < 0.001), with 85% of patients rated as "very much improved." Blinded evaluations confirmed visible reductions in pore visibility, increased skin luminosity, and diminished fine wrinkles in nonsurgical regions (malar, perioral). No adverse events were reported. The combination of low-energy RF microneedling and nanofat grafting synergistically improves facial aesthetics by targeting regenerative and structural aging markers. Specific enhancements in nonsurgical regions underscore the value of this adjunctive approach. Larger controlled studies are warranted to establish causality. In his practice, the author has been using noninvasive devices, including Evolve X-radiofrequency-based procedure for tightening of the skin, melting of the subdermal fat deposits and muscle stimulation, all done simultaneously together and truSculpt flex-electrical muscle stimulation. Minimally invasive procedures include BodyTite, FaceTite, and AccuTite, radiofrequency-based procedures for permanent fat destruction and tightening of the skin. Morpheus8 and Morpheus8 Body are radiofrequency based-procedures for tightening of the skin. VASERlipo is an ultrasound-based procedure for liposuction and muscle definition. Vibrational type of liposuction has been used for the purpose of liposuction and muscle definition in combination with VASERlipo. A subset of facelift patients have premature redevelopment of skin laxity in the lower face and neck. Many patients seek alternatives to revision facelifts to avoid high risks and costs. Radiofrequency-assisted lipolysis (RFAL) with Radiofrequency (RF) microneedling may be alternative minimally invasive options. To evaluate the efficacy of radiofrequency energy devices for treatment of premature jowl and neck skin laxity following facialplasty. This is a single-center, prospective study of patients seeking treatment for jowl and neck skin laxity 1-5 years following facialplasty. Treatment was performed with the InMode radiofrequency AccuTite® and Morpheus8® systems. Study duration was 12 months with 6 months of follow-up. Endpoints included improvement in skin tightening assessed by blinded investigators, and investigator and subject assessment of skin appearance. Subjects also rated satisfaction with treatment and pain levels. The study protocol was completed by nine patients. Based on investigator evaluations, 33% had marked improvement at 3 months, which increased to 55% at 6-month postprocedure. Patient-reported improvement was "markedly improved" in 67%, "moderate improvement" in 11%, and "slight improvement" in 22% at 3 months. Overall patient satisfaction was rated as "very satisfied" by 33% and "satisfied" by 67% at 3 months. There were no adverse events reported. The results of this study provide supporting evidence that RFAL technology can provide a safe, minimally invasive, and effective treatment for skin laxity in the jowls and neck in patients who desire further correction after undergoing primary facelift.
DOI: 10.1111/jocd.15283 논문 보기 Optical detection of thiocyanate in human saliva based on the colorimetric response of (2-(2-hydroxyphenyl)-1H-benzo[d]imidazol-5-yl)(phenyl) methanone (HBPM)/Co(2+) ions conjugate.
Sundaram E, Servarayan KL, Vasantha VS ·Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy ·2022
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Simple colorimetric biosensor was designed for the quantification SCN- ions based on the principle of colorimetric reactions between Co2+ and SCN- ions reaction using synthesized chromophore (2-(2-hydroxyphenyl)-1H-benzo[d]imidazol-5-yl)(phenyl) methanone (HBPM)/Co2+ ions conjugate which was synthesized via greener ultrawave sonication method. The structural characterization of the HBPM chromophore was confirmed by using NMR, ESI-MASS spectral techniques and the photophysical properties, sensor studies were done by using UV-Vis Spectrophotometer. Our designed HBPM/Co2+ ions conjugates have selectively detected SCN- ions qualitatively and quantitatively in the presence of other human salivary interferents. As per clinical point of view, three different ranges of SCN- ions from 0.1 to 2 mM for normal, 3 to 10 mM for disease, and 100-600 µM for below normal ranges were tested successfully by our developed sensor and the LoD was calculated as 5.43 nM. The real potent application of the developed biosensor was tested in human salivary samples of both smokers and non-smokers under different ages and obtained results shown good agreement with existing clinical methods. We investigate the effect of active peptide from Urechis unicinctus (UU) by high temperature/pressure and ultra-wave assisted lysis on erectile dysfunction in streptozotocin-induced diabetic rats. Forty 12-week-old Sprague-Dawley rats were used in this study. Diabetes was induced by a one-time intraperitoneal injection of streptozotocin (50mg/kg). One week later, the diabetic rats were randomly divided into four groups: normal control, untreated diabetes control, and groups treated with 100 or 500mg/kg/d UU peptide. Rats were fed with UU peptide by intragastric administration for 8 weeks. After 8 weeks, penile hemodynamic function was evaluated in all groups by measuring the intracavernosal pressure after electrostimulating the cavernous nerve. Nitric oxide (NO) and cyclic guanosine monophosphate (cGMP) activities were measured and endothelial nitric oxide synthase (eNOS) and neuronal NOS (nNOS) protein expression. was determined by Western blot. Maximum intracavernosal pressure in diabetic control rats decreased significantly compared to normal control rats, and was increased significantly compared to untreated diabetic rats after UU peptide supplementation. Treatment with the higher dose of UU peptide significantly increased the NO and cGMP levels compared with the diabetic control group. Decreased activity and expression eNOS and nNOS were found in the diabetic rats compared with the normal control group. Decreased eNOS and nNOS in diabetic rats were improved by UU peptide administration. Active peptide from UU ameliorates erectile function in a streptozotocin induced diabetic rat model of erectile dysfunction. National surveys have shown that painful breasts are the second most common reason for giving up breastfeeding in the first two weeks after birth in the UK. One factor contributing to such pain can be breast engorgement. Views differ as to how engorgement arises, although restrictive feeding patterns in hospital are likely to have contributed in the past. These differing views are reflected in the range of solutions offered to treat engorgement in breastfeeding mothers and these treatments are assessed in this review. To determine the effects of any proposed intervention to relieve symptoms of breast engorgement among breastfeeding women. The register of clinical trials maintained and updated by the Cochrane Pregnancy and Childbirth Group. CINAHL and MEDLINE were also searched. Date of last search: December 2000. All randomised and 'quasi-randomised' controlled trials, with or without blinding, that assess the effectiveness of treatments for the alleviation of symptoms in breastfeeding women experiencing engorgement . Data were extracted by one reviewer and verified by a second reviewer. Eight trials, involving 424 women, were included. Three different studies were identified which used cabbage leaves or cabbage leaf extracts;. no overall benefit was found. Ultrasound treatment and placebo were equally effective. Use of Danzen (an anti-inflammatory agent) significantly improved the total symptoms of engorgement when compared to placebo (odds ratio (OR) 3.6, 95% confidence interval (CI) 1.3 - 10.3) as did bromelain/trypsin complex (OR 8.02, 95% CI 2.8-23.3). Oxytocin and cold packs had no demonstrable effect on engorgement symptoms. Cabbage leaves and gel packs were equally effective in the treatment of engorgement. Since both cabbage extract and placebo cream were equally effective, the alleviation in symptoms may be brought about by other factors, such as breast massage. Ultrasound treatment is equally effective with or without the ultra-wave emitting crystal, therefore its effectiveness is more likely to be due to the effect of radiant heat or massage. Pharmacologically, oxytocin was not an effective engorgement treatment while Danzen and bromelain/trypsin complex significantly improved the symptoms of engorgement. Initial prevention of breast engorgement should remain the key priority. National surveys have shown that painful breasts are the second most common reason for giving up breastfeeding in the first two weeks after birth in the UK. One factor contributing to such pain can be breast engorgement. Views differ as to how engorgement arises, although restrictive feeding patterns in hospital are likely to have contributed in the past. These differing views are reflected in the range of solutions offered to treat engorgement in breastfeeding mothers and these treatments are assessed in this review. To determine the effects of any proposed intervention to relieve symptoms of breast engorgement among breastfeeding women. The register of clinical trials maintained and updated by the Cochrane Pregnancy and Childbirth Group. CINAHL and MEDLINE were also searched. Date of last search: December 2000. All randomised and 'quasi-randomised' controlled trials, with or without blinding, that assess the effectiveness of treatments for the alleviation of symptoms in breastfeeding women experiencing engorgement. Data were extracted by one reviewer and verified by a second reviewer. Eight trials, involving 424 women, were included. Three different studies were identified which used cabbage leaves or cabbage leaf extracts;. no overall benefit was found. Ultrasound treatment and placebo were equally effective. Use of Danzen (an anti-inflammatory agent) significantly improved the total symptoms of engorgement when compared to placebo (odds ratio (OR) 3.6, 95% confidence interval (CI) 1.3 - 10.3) as did bromelain/trypsin complex (OR 8.02, 95% CI 2.8-23.3). Oxytocin and cold packs had no demonstrable effect on engorgement symptoms. Cabbage leaves and gel packs were equally effective in the treatment of engorgement. Since both cabbage extract and placebo cream were equally effective, the alleviation in symptoms may be brought about by other factors, such as breast massage. Ultrasound treatment is equally effective with or without the ultra-wave emitting crystal, therefore its effectiveness is more likely to be due to the effect of radiant heat or massage. Pharmacologically, oxytocin was not an effective engorgement treatment while Danzen and bromelain/trypsin complex significantly improved the symptoms of engorgement. Initial prevention of breast engorgement should remain the key priority.
DOI: 10.1016/j.saa.2021.120423 논문 보기 The Role of Er-yag Glass Laser in Skin Resurfacing.
Bertossi D, Carletta LC, Fink LC et al. ·Facial plastic surgery : FPS ·2022
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Following Nonablative fractional Fraxel laser (NAFL), a well-established treatment for skin rejuvenation, immediate post-procedural care is essential to address any potential complications and accelerate the healing process. To evaluate the efficacy and patient satisfaction of a topical skincare regimen containing vitamin C, vitamin E, and ferulic acid-CE Ferulic serum (CEF) following NAFL treatment in the Chinese population. In this randomized, investigator-blinded, split-face, controlled trial, patients with mild-to-moderate facial photodamage were randomized to receive CEF treatment on one side of the face and normal saline (NS) on the other side immediately after the NAFL procedure and daily during the 7-day follow-up. The primary endpoint was the change from baseline in erythema score on Day 7, with key secondary endpoints including changes from baseline in erythema index (EI), melanin index (MI), transepidermal water loss, skin hydration, skin sebum content, scabbing, edema, overall patient satisfaction, and post-procedure pain. In total, 50 patients (female 45/50) were enrolled in this study, with a mean age of 31.6 years. The mean change from baseline in erythema score was significantly lower on the CEF side than on the NS side on Day 7 post-NAFL treatment (0.04 ± 0.40 vs. 0.18 ± 0.48, p = 0.011). The CEF side also exhibited improved changes in EI, MI, and skin hydration, as well as higher overall satisfaction and less pain compared with the NS side. Applying CEF after NAFL treatment reduced erythema progression, maintained skin hydration, and promoted the healing process compared with NS. Chinese Clinical Trial Registry: ChiCTR2300069246. Multicentric Castleman's disease (MCD) with cutaneous involvement has rarely been discussed in dermatologic literature, with few reports. Cutaneous lesions in MCD may induce deep scars, causing a significant impact in the daily life of the patients. The treatment of Castleman's disease (CD) is usually a challenge, especially in case of cutaneous involvement. We report the case of a 35-year-old Caucasian man with a 3-year-old history of MCD with cutaneous involvement that we treated with a combined therapy characterized by siltuximab and 1,927 nm fractional laser. The patient showed a therapeutic response, characterized by a reduction of systemic symptoms and cutaneous manifestations. We believe that the combination of siltuximab and 1,927 nm fractional laser might have a synergistic beneficial role in patients with cutaneous iMCD and maximize esthetic outcomes. Anyway, additional evidence is needed to validate our findings. Microbotox technique, intradermal injection of microdroplets of botulinum toxin, is a favorable rejuvenation approach in subjects who prefer more natural appearance. To determine the best injection techniques (dosage, concentration, as well as number and location of injection points), efficacy and side effects of this innovative technique for facial rejuvenation. We conducted a search in Pubmed, Embase, Web of Science, and Google Scholar databases from conception until October 2021 with keywords "microbotox" OR "mesobotox" OR "intradermal injection" AND "botulinum toxin" AND "rejuvenation" AND "wrinkle" AND "face-lift." Twenty articles were included in this review article. Different types of formulation including onabotulinum toxin A (OBA), abobotulinum toxin A (ABO), and incobotulinum toxin A (IBA) were used. The most used concentrations were 10-20 u/cc of OBA. Number of injection points varied from 4 (forehead and periorbital areas) to 999 (entire face) with 2 mm to 2 cm apart. Adjuvant treatment modalities were cross-linked hyaluronic acid, intense pulsed laser, and Fraxel laser. Most studies reported the initial results appeared after 5-14 days of procedure, lasting for nearly 3-6 months. Microbotox is an efficient and attractive method for facial rejuvenation, mid-lower face-lifting, and fine wrinkles reduction in forehead, periocular, and cheek regions, especially in younger-aged subjects. Furthermore, it is a suitable treatment for neck rejuvenation and recontouring of lower mandibular border, particularly in older subjects with marked skin laxity. The Fraxel Dual laser system (Solta Medical, Inc., Bothell, WA) contains a 1,550 and 1,927 nm wavelength single handpiece with different indications for each wavelength. To discuss treatment setting recommendations and best practices for select on-label and investigational applications of the 1,550 and 1,927 nm dual laser system. Eight board-certified dermatologists with 10 or more years of experience with the 1,550 and 1,927 nm laser system completed an online survey about their clinical experience with the system and then participated in a roundtable to share clinical perspectives and best practices for using the laser system. For all Fitzpatrick skin types, treatment recommendations were described for selected approved indications for the 1,550 and 1,927 nm laser system, including both lasers in combination. Treatment recommendations were also reached for investigational applications with the 1,550 nm laser and 1,927 nm laser. Best practices for using the lasers during the treatment session to achieve optimal outcomes and decrease the post-treatment recovery time were compiled. The 1,550 and 1,927 nm dual laser system is effective for a wide range of aesthetic and therapeutic applications, on and off the face and across all Fitzpatrick skin types. Following our survey, we can appreciate that a variety of laser platforms exist to rejuvenate the skin by resurfacing the outer layer of the skin as well as heating the lower layers of the dermis. Based on reliable clinical effectiveness and a limited side effect profile, we can confirm that nonablative fractionated technologies greatly improve the appearance of lentigines, rhytids; eliminate sun damage, attenuate scarring due to acne and other causes; and treat hyperpigmentation. The Fraxel (Solta Medical) laser system delivers pulses across a wide range of density and energy levels. We determined that when increasing the pulse energy this led to an increase in thermolysis microzone depth and width without damaging the surrounding tissue. Due to its performance and various clinical applications, Fraxel laser can be optimally considered to be the gold standard for skin rejuvenation. Sebaceous hyperplasia (SH) is a common skin presentation in adults. Due to their unwanted yellow papular appearance, patients may desire their removal. Although several treatment modalities have been reported, the full range and efficacy of options are unclear. To determine the efficacy of laser modalities in the treatment of SH. The authors will also specifically assess the efficacy, recurrence rate and side effect profile of SH treatment with Er:YAG wavelength using a variable long pulsed (VLP) Er:YAG laser (SP Dynamis Fotona laser, Ljubljana, Slovenia) Methods & Materials: A comprehensive literature search was performed through PubMed, EMBASE, and Web of Science, using the search terms [(sebaceous hyperplasia)] and [(laser[s], Er:Yag, Er:Glass, Fraxel, CO2, PDL, Pulse dye laser, Diode, Xe-Cl, Excimer, Argon, KTP, Ruby, Alexandrite or Nd:YAG)]. The search yielded a total of 119 results and 8 were identified as relevant to this reviewResults: Pulse dye laser (PDL) provides a wide range of treatment results from complete reduction to flattening of the SH without significant adverse events; recurrence rates were unreported. Short PDL showed faster treatment response than long PDL. CO2 laser can produce considerable positive cosmetic outcomes with marked clinical improvement without any recurrence, but significant adverse effects have been reported. The 1450-nm diode laser has been described to produce good (75%) clinical improvement and lesion shrinkage ranging from 50% to greater than 75% without lasting adverse effects. In
DOI: 10.1055/a-1733-2768 논문 보기 Efficacy of comparing coil behavior and distribution using the silicone aneurysm model: difference of coil distribution in the early filling stage.
Goto S, Izumi T, Nishihori M et al. ·Nagoya journal of medical science ·2022
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The use of hyaluronic acid (HA) fillers is rising globally. Traditionally, the rheology of HA fillers has been subject to investigations for their use in facial soft tissues. Hitherto, there has been a significant gap in understanding their rheologic properties in body applications. The requirements for body fillers are different from facial fillers as they are applied for larger volume deficits, and experience greater mechanical stress. This study aims to fill this gap by analyzing the physicochemical and rheological properties of HA body fillers to guide clinical practice. Four commercially available HA-based body fillers were analyzed under standardized laboratory conditions. The physicochemical properties, including pH, osmolality, ion concentrations, clarity, and swelling factor, were assessed. Rheological properties, including storage modulus (G'), loss modulus (G″), complex modulus (G*), and tan delta (tan δ), were assessed between 0.1 and 1 Hz. The physicochemical analysis revealed no significant differences among the fillers, indicating uniform chemical stability. However, rheological analysis showed significant variations. Infini B Body exhibited the lowest G', G″, and G* values. In contrast, HYAcorp MLF1 and MLF2 displayed higher G' and G* values, indicating greater elasticity and stiffness. Consistent rankings between 0.1 and 1 Hz suggest stable mechanical performance under dynamic and sustained loading, supporting their suitability for high-load applications such as gluteal augmentation. Selecting HA body fillers based on their rheological properties is crucial for optimizing outcomes, particularly in body contouring procedures where mechanical demands differ from those of facial applications. Clinicians should tailor filler selection to the specific requirements of each body area. Further research is required to validate these findings in long-term clinical settings. This study sought to establish an experimental aneurysm model of visualizing coil insertion using radiolucent nylon coils. Moreover, this study aimed to clarify the characteristics and differences of each coil and use them clinically as indices of coil selection. The coil insertion test was performed on the 10 mm spherical silicone aneurysm model filled to a nylon coil volume embolization ratio of 11.8%. Five types of coil were randomly tested six times, and the distribution of the coils was analyzed by fluoroscopy imaging. Indices of "Area (mm2)," "Feret's diameter (mm)," and "Circularity" were calculated from the fluoroscopic images. Among the indices, only "Area" showed a significant difference between coils (p = 0.002). On multivariate analysis, "Area" of the ED Infini was larger than those of Target XL soft and Galaxy G3 (p = 0.018 and 0.026, respectively). Furthermore, the area of the 360 soft was larger than that of G3 (p = 0.049). Analysis of the correlation between these values and the coil configuration showed that "Area" was negatively correlated with the stock-wire diameter (r = -0.50; p = 0.004) and primary coil configuration (r = -0.65; p < 0.001). When inserting the coils in the early stage, although the difference between each coil is relatively difficult to obtain, knowledge on the proper use of the coils with differences in characteristics can help in selecting the coil most appropriate for the conditions. Introduction Up to 30% of terminally ill cancer patients experiencing intense pain might be refractory to opioid treatment. Complex cancer pain can be a mixture of somatic, visceral, and neuropathic pain with few or no effective alternatives to ameliorate pain. Radiosurgery to treat refractory pain in cancer has been reported with different degrees of success. Radiomodulation in pain could be defined as a fast (<72 h), substantial (>50%) pain relief by focal irradiation to a peripheric, and/or central mediated pain circuitry. Based on our previous experience, mixed, refractory cancer pain is usually unresponsive to single target irradiation of the hypophysis. We treated three patients using a multi-target approach. Methods Three terminally ill oncological patients experiencing refractory, complex, mixed pain from bone, abdomen, thorax, and brachial plexus were treated with triple target irradiation which consisted of irradiating with a maximum dose (Dmax) of 90 Gy to the hypophysis using either an 8 mm collimator with gamma ray (Infini) (Shenzhen, China: Masep Medical Company) or a 7.5 circular collimator with Cyberknife (Sunnyvale, CA: Accuray Inc.), the other two targets were the mesial structures of the thalamus bilaterally using a 4 mm collimator with Infini and the 5 mm circular collimator with CK delivering 90 Gy Dmax to each region. Patients had a VAS of 10 despite the best medical treatment. A correlation was made between the 45 Gy and 20 Gy isodose curves of the two different technologies to the Morel stereotactic atlas of the thalamus and basal ganglia for further understanding of dose distribution reconstructions in accordance with the São Paulo-Würzburg atlas of the Human Brain Project were performed. Lastly, a scoping review of the literature regarding radiosurgery for oncological pain was performed. Results Radiomodulation effect was achieved in all patients; case 1 had a VAS of five at 72 h, three at 15 days, and three at the time of death (21 days after treatment). Case 2 had a VAS of six at 72 h, five at 15 days, and four at the time of death (29 days after treatment). Case 3 had a VAS of five at 72 h, six at 15 days, and six at the time of death (30 days). Morphine rescues for cases 1 and 2 were reduced to 84%, and 70% for case 3. Overall, there were no adverse effects to treatment although excessive sleepiness was reported by one patient. After reading the title and abstract, only 14 studies remained eligible for full-text evaluation, and only nine studies met inclusion criteria after full-text reading. For most reports (seven), the target was the hypophysis and in two reports, the target was the thalamus either with single or bilateral irradiation. Conclusions In complex, for refractory oncological pain of mixed nature (nociceptive, neuropathic, and visceral), very few, if any, treatment alternatives are currently available. We provide a small proof of concept that multitarget intracranial radiosurgery might be effective in ameliorating pain in this population. The doses administered per target are the lowest that have shown effectiveness thus far, a different strategy might be needed as opposed to single target "large" dose approach that has been tried in the past for complex mixed refractory oncological pain. By no means, in our experience, these treatments traduce in elimination of pain, clinical results might make pain to be more bearable and respond better to pain medication. Introduction Meningiomas are extra-axial central nervous system tumors. Complete resection is often curative with macroscopically complete removal of the tumor, excision of its dural attachment, and any abnormal bone. Radiosurgery is also an option for high-risk patients or in patients with surgically residual disease. Dural tail is a typical radiological sign on contrast-enhanced MRI; it can contain tumor cells or be a reaction due to vascular congestion and edema. Radiosurgical planning treatment varies regarding the identification and coverage of the dural tail. This study aimed to retrospectively analyze a series of 143 patients with WHO Grade I meningiomas treated with different radiosurgical platforms, and dosing parameters focused on planning and dose delivery to the dural tail. Methods From February 2011 to July 2020, 143 patients with histologically confirmed or radiologically assumed WHO Grade I meningiomas were treated using rotating gamma-ray Infini™ (Gamma [MASEP Medical Science Technology Develo
DOI: 10.18999/nagjms.84.4.762 논문 보기