Jason Keller Rivers
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
Jason Keller Rivers has a total of 200 co-authors. Here are the top co-authors by number of shared publications:
Alfred W. Kopf
10 shared publicationsDarrell S. Rigel
6 shared publicationsMagdalena Martinka
Division of Anatomical Pathology (Dermatopathology), Department of Pathology & Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
6 shared publicationsRobert J. Friedman
Department of Dermatology, New York University School of Medicine, New York, USA
6 shared publicationsChanny Muhn
5 shared publicationsRichard P. Gallagher
4 shared publications
Latest Publications
- Open Access
- 9 September 2025
- Published by Wolters Kluwer Health in Dermatologic Surgery
- Vol. 52 (3) , 267-272
NivobotulinumtoxinA in the Treatment of Lateral Canthal Lines Alone and With Concurrent Treatment of Glabellar Lines
BACKGROUND: Botulinum neurotoxins in aesthetic medicine require reconstitution, which may cause administration errors. OBJECTIVE: To evaluate liquid nivobotulinumtoxinA treatment of lateral canthal lines (LCL) and glabellar lines (GL). MATERIALS AND METHODS: Participants with moderate-to-severe LCL with/without moderate-to-severe GL were enrolled in 2 double-blind randomized clinical trials. Study 002 participants received nivobotulinumtoxinA 24 U or placebo for LCL treatment. Study 006 participants received nivobotulinumtoxinA 24 U (LCL), nivobotulinumtoxinA 44 U (LCL+GL), or placebo. Each study allowed up to 2 additional doses. The composite primary end point was the proportion of participants achieving ≥2-grade improvement on the Facial Wrinkle Scale (FWS) by investigator and participant assessment at maximum smile; the coprimary end point was investigator- and participant-assessed FWS “none or mild” rating. RESULTS: At Day 30, significant responder rates versus placebo were observed for LCL in Study 002 (30.3% vs 2.6%, p < .001) and for LCL and LCL+GL in Study 006 (20.6% and 22.8% vs 0%, p < .001) for the composite end point. “None or mild” investigator/participant assessment of LCL (Study 002: 62.7%/56.5%; Study 006: 56.4%/43.6%) and LCL+GL (60.8%/47.3%) were significantly higher versus placebo ( p < .001). Headache was the most common adverse event. CONCLUSION: Liquid nivobotulinumtoxinA was effective and well-tolerated for treating moderate-to-severe LCL with/without GL.
- 9 September 2025
- Published by Wolters Kluwer Health in Dermatologic Surgery
- Vol. 52 (3) , 267-272
Open AccessNivobotulinumtoxinA in the Treatment of Lateral Canthal Lines Alone and With Concurrent Treatment of Glabellar Lines
BACKGROUND: Botulinum neurotoxins in aesthetic medicine require reconstitution, which may cause administration errors. OBJECTIVE: To evaluate liquid nivobotulinumtoxinA treatment of lateral canthal lines (LCL) and glabellar lines (GL). MATERIALS AND METHODS: Participants with moderate-to-severe LCL with/without moderate-to-severe GL were enrolled in 2 double-blind randomized clinical trials. Study 002 participants received nivobotulinumtoxinA 24 U or placebo for LCL treatment. Study 006 participants received nivobotulinumtoxinA 24 U (LCL), nivobotulinumtoxinA 44 U (LCL+GL), or placebo. Each study allowed up to 2 additional doses. The composite primary end point was the proportion of participants achieving ≥2-grade improvement on the Facial Wrinkle Scale (FWS) by investigator and participant assessment at maximum smile; the coprimary end point was investigator- and participant-assessed FWS “none or mild” rating. RESULTS: At Day 30, significant responder rates versus placebo were observed for LCL in Study 002 (30.3% vs 2.6%, p < .001) and for LCL and LCL+GL in Study 006 (20.6% and 22.8% vs 0%, p < .001) for the composite end point. “None or mild” investigator/participant assessment of LCL (Study 002: 62.7%/56.5%; Study 006: 56.4%/43.6%) and LCL+GL (60.8%/47.3%) were significantly higher versus placebo ( p < .001). Headache was the most common adverse event. CONCLUSION: Liquid nivobotulinumtoxinA was effective and well-tolerated for treating moderate-to-severe LCL with/without GL.
- 27 February 2025
- Published by Wolters Kluwer Health in Dermatologic Surgery
- Vol. 51 (7) , 668-672
Myth Versus Reality: A Review of Social Media Claims and Scientific Evidence for Arnica montana in Postinjectable Procedures
BACKGROUND: Reduced bruising and swelling after aesthetic procedures accelerates recovery. Arnica montana is widely used by physicians and promoted on social media, although its efficacy in aesthetic medicine remains uncertain. OBJECTIVE: To evaluate the validity of social media claims regarding Arnica's therapeutic benefits, focusing on aesthetic injectable procedures. MATERIALS AND METHODS: Social media platforms, TikTok and Reddit, were searched on April 24, 2024, covering a 2-year period, using terms: “arnica montana,” “arnica,” “arnica filler,” “arnica botox,” and “arnica gel.” A literature review was conducted using OVID Medline and Embase databases with keywords “arnica” and “arnica montana.” RESULTS: A total of 48 TikTok posts and 305 Reddit entries were identified; with 91.7% and 58% of posts, respectively, endorsing Arnica use, primarily without scientific evidence. The literature review revealed limited and mixed evidence for Arnica's efficacy, with only 1 study addressing dermatologic injectable procedures. Systematic reviews indicated a small effect size for Arnica in surgical settings, with no specific focus on dermatologic applications. CONCLUSION: Despite its popularity on social media and frequent use by health care providers, scientific evidence supporting Arnica's efficacy in reducing bruising and swelling after aesthetic procedures remains inconclusive. Social media discussions predominantly supported Arnica use, with limited opposition noted.
- 27 February 2025
- Published by Wolters Kluwer Health in Dermatologic Surgery
- Vol. 51 (7) , 668-672
Myth Versus Reality: A Review of Social Media Claims and Scientific Evidence for Arnica montana in Postinjectable Procedures
BACKGROUND: Reduced bruising and swelling after aesthetic procedures accelerates recovery. Arnica montana is widely used by physicians and promoted on social media, although its efficacy in aesthetic medicine remains uncertain. OBJECTIVE: To evaluate the validity of social media claims regarding Arnica's therapeutic benefits, focusing on aesthetic injectable procedures. MATERIALS AND METHODS: Social media platforms, TikTok and Reddit, were searched on April 24, 2024, covering a 2-year period, using terms: “arnica montana,” “arnica,” “arnica filler,” “arnica botox,” and “arnica gel.” A literature review was conducted using OVID Medline and Embase databases with keywords “arnica” and “arnica montana.” RESULTS: A total of 48 TikTok posts and 305 Reddit entries were identified; with 91.7% and 58% of posts, respectively, endorsing Arnica use, primarily without scientific evidence. The literature review revealed limited and mixed evidence for Arnica's efficacy, with only 1 study addressing dermatologic injectable procedures. Systematic reviews indicated a small effect size for Arnica in surgical settings, with no specific focus on dermatologic applications. CONCLUSION: Despite its popularity on social media and frequent use by health care providers, scientific evidence supporting Arnica's efficacy in reducing bruising and swelling after aesthetic procedures remains inconclusive. Social media discussions predominantly supported Arnica use, with limited opposition noted.
- Open Access
- 8 January 2025
- Published by Oxford University Press (OUP) in Aesthetic Surgery Journal Open Forum
- Vol. 7, ojae130
Canada HARMONY Study: Improvements in Patient Satisfaction With Facial Appearance and Psychological Impact of Combined Aesthetic Treatment
Background: Panfacial treatment has the potential to positively impact psychosocial and emotional well-being. Objectives: The Canada HARMONY study evaluated the satisfaction and psychosocial impact of comprehensive, multimodal aesthetic treatment of the face and submental area from the patient perspective. Methods: Over 12 months, all patients (N = 58) sequentially received treatment with hyaluronic acid (HA) fillers, onabotulinumtoxinA, and medical-grade skincare products, and eligible patients (n = 13) also received ATX-101. The primary endpoint was the change from baseline on the FACE-Q Satisfaction with Facial Appearance Scale. Secondary endpoints included the following assessments: FACE-Q Expectations of Life Change, Psychological Function, Social Function, Satisfaction with Skin, and Aging Appraisal Scales; Global Aesthetic Improvement Scale (GAIS); and the Periorbital Aesthetic Appearance Questionnaire (PAAQ). Safety was monitored throughout the study. Results: Baseline FACE-Q Expectations of Life Change scores indicated realistic treatment expectations. Significant improvements from baseline were observed on the FACE-Q Satisfaction with Facial Appearance, Psychological Function, Social Function, Satisfaction with Skin, and Aging Appraisal Scales (P < .0001 for all endpoints). Most patients rated “much improved” on the GAIS. The mean PAAQ total score significantly improved from baseline by 32.6 (P < .0001). Most patients reported mild-to-moderate injection-site responses, which had a mean time to resolution of <14 days. Conclusions: Panfacial aesthetic treatment consisting of HA fillers, onabotulinumtoxinA, and ATX-101 improved patient-reported satisfaction, psychological function, social function, and aging appraisal across validated measures. Level of Evidence: 5 (Therapeutic):
- 8 January 2025
- Published by Oxford University Press (OUP) in Aesthetic Surgery Journal Open Forum
- Vol. 7, ojae130
Open AccessCanada HARMONY Study: Improvements in Patient Satisfaction With Facial Appearance and Psychological Impact of Combined Aesthetic Treatment
Background: Panfacial treatment has the potential to positively impact psychosocial and emotional well-being. Objectives: The Canada HARMONY study evaluated the satisfaction and psychosocial impact of comprehensive, multimodal aesthetic treatment of the face and submental area from the patient perspective. Methods: Over 12 months, all patients (N = 58) sequentially received treatment with hyaluronic acid (HA) fillers, onabotulinumtoxinA, and medical-grade skincare products, and eligible patients (n = 13) also received ATX-101. The primary endpoint was the change from baseline on the FACE-Q Satisfaction with Facial Appearance Scale. Secondary endpoints included the following assessments: FACE-Q Expectations of Life Change, Psychological Function, Social Function, Satisfaction with Skin, and Aging Appraisal Scales; Global Aesthetic Improvement Scale (GAIS); and the Periorbital Aesthetic Appearance Questionnaire (PAAQ). Safety was monitored throughout the study. Results: Baseline FACE-Q Expectations of Life Change scores indicated realistic treatment expectations. Significant improvements from baseline were observed on the FACE-Q Satisfaction with Facial Appearance, Psychological Function, Social Function, Satisfaction with Skin, and Aging Appraisal Scales (P < .0001 for all endpoints). Most patients rated “much improved” on the GAIS. The mean PAAQ total score significantly improved from baseline by 32.6 (P < .0001). Most patients reported mild-to-moderate injection-site responses, which had a mean time to resolution of <14 days. Conclusions: Panfacial aesthetic treatment consisting of HA fillers, onabotulinumtoxinA, and ATX-101 improved patient-reported satisfaction, psychological function, social function, and aging appraisal across validated measures. Level of Evidence: 5 (Therapeutic):
- Open Access
- 18 December 2024
- Published by Wolters Kluwer Health in Dermatologic Surgery
- Vol. 51 (3) , 277-283
Efficacy and Safety of RelabotulinumtoxinA Liquid Botulinum Toxin in the Treatment of Lateral Canthal Lines: Results From the Phase 3 READY-2 Study
BACKGROUND: RelabotulinumtoxinA (RelaBoNT-A) is a complex-free, ready-to-use, liquid botulinum toxin A. OBJECTIVE: Efficacy/safety of RelaBoNT-A treatment for lateral canthal lines (LCL). METHODS: Randomized adults received RelaBoNT-A (30 U/side; n = 230) or placebo (n = 73) during a 6-month, double-blind, Ph3 study (Relabotulinumtoxin Aesthetic Development Study-2 [READY-2]). Primary end points (Month 1, maximum smile) comprised: composite ≥2-grade responder rate using concurrent LCL severity investigator live assessment (LCL-ILA) and subject live assessment (LCL-SLA); LCL-ILA 0 (none)/1 (mild) responder rate. Subject satisfaction and adverse events were also reported. RESULTS: Month 1 composite ≥2-grade responder rates were 51.8% (RelaBoNT-A) and 1.4% (placebo; (p < .001). Month 1 none/mild LCL-ILA responder rates were 87.2% (RelaBoNT-A) and 11.9% (placebo; p < .001). Onset was reported Day 1 by 34%. At Month 6, LCL-ILA responder rates for RelaBoNT-A remained at 23.3% (none/mild) and 35.9% (≥1-grade improvement). Median return to baseline severity was 24.7 weeks; 64% (RelaBoNT-A group) had not returned to baseline at Month 6. RelaBoNT-A satisfaction was high through Month 6 (71%). Mild/moderate treatment-related adverse events occurred in 6.1% (RelaBoNT-A) and 5.5% (placebo). CONCLUSION: RelaBoNT-A (60 U) treatment provided statistically significant improvement of moderate-to-severe LCL. One-third of subjects reported onset within 1 day and improvements were maintained through Month 6. Treatment satisfaction was high. RelaBoNT-A was well tolerated.
- 18 December 2024
- Published by Wolters Kluwer Health in Dermatologic Surgery
- Vol. 51 (3) , 277-283
Open AccessEfficacy and Safety of RelabotulinumtoxinA Liquid Botulinum Toxin in the Treatment of Lateral Canthal Lines: Results From the Phase 3 READY-2 Study
BACKGROUND: RelabotulinumtoxinA (RelaBoNT-A) is a complex-free, ready-to-use, liquid botulinum toxin A. OBJECTIVE: Efficacy/safety of RelaBoNT-A treatment for lateral canthal lines (LCL). METHODS: Randomized adults received RelaBoNT-A (30 U/side; n = 230) or placebo (n = 73) during a 6-month, double-blind, Ph3 study (Relabotulinumtoxin Aesthetic Development Study-2 [READY-2]). Primary end points (Month 1, maximum smile) comprised: composite ≥2-grade responder rate using concurrent LCL severity investigator live assessment (LCL-ILA) and subject live assessment (LCL-SLA); LCL-ILA 0 (none)/1 (mild) responder rate. Subject satisfaction and adverse events were also reported. RESULTS: Month 1 composite ≥2-grade responder rates were 51.8% (RelaBoNT-A) and 1.4% (placebo; (p < .001). Month 1 none/mild LCL-ILA responder rates were 87.2% (RelaBoNT-A) and 11.9% (placebo; p < .001). Onset was reported Day 1 by 34%. At Month 6, LCL-ILA responder rates for RelaBoNT-A remained at 23.3% (none/mild) and 35.9% (≥1-grade improvement). Median return to baseline severity was 24.7 weeks; 64% (RelaBoNT-A group) had not returned to baseline at Month 6. RelaBoNT-A satisfaction was high through Month 6 (71%). Mild/moderate treatment-related adverse events occurred in 6.1% (RelaBoNT-A) and 5.5% (placebo). CONCLUSION: RelaBoNT-A (60 U) treatment provided statistically significant improvement of moderate-to-severe LCL. One-third of subjects reported onset within 1 day and improvements were maintained through Month 6. Treatment satisfaction was high. RelaBoNT-A was well tolerated.
- 7 October 2024
- Published by Canadian Urological Association Journal in Canadian Urological Association Journal
- Vol. 19 (2) , 25-31
Fractional CO2 laser for the treatment of Peyronie’s disease
Introduction: Fractional CO2 laser therapy is used to treat fibrosing conditions similar to Peyronie’s disease (PD). The aim of the study was to evaluate the safety and efficacy of using a fractional CO2 laser in the management of chronic phase PD. Methods: This was a single-site, non-randomized, open-label study using a fractional CO2 laser. Subjects underwent three treatment sessions every six weeks with a fractional CO2 device. Topical triamcinolone was applied immediately after each treatment. Between treatments, patients performed penile modeling three times daily. Penile curvature assessments, self-reported questionnaires, and adverse event screenings were completed at baseline, 24 weeks, and at 52 weeks. Results: Five patients were included in the study. The median baseline penile curvature was 37.0° (interquartile range [IQR] 33.0°, 53.0°), and at 52 weeks, this had reduced to a median curvature to 28.0° (IQR 17.50°, 44.0°, p=0.03), representing a median reduction in penile curvature by 24.3% (IQR 17.0%, 47.5%). The International Index of Erectile Function Overall scores were comparable at baseline and at 52 weeks (median: 59.0, IQR: 42.5, 66.5 vs. median: 60.0, IQR 53.5, 70.0 respectively, p=0.81). Patients did report significant improvement in overall Peyronies’ disease questionnaire (PDQ) scores from baseline to 52 weeks after laser treatment (median 26.0, IQR15.0, 29.5, vs. median: 14.0, IQR 7.0, 22.50, respectively, p=0.03). Four patients reported self-limiting side effects immediately after laser therapy that resolved spontaneously within two weeks. Conclusions: Fractional CO2 laser therapy may serve as a well-tolerated and minimally invasive therapy for PD in the future, with results at 52 weeks being encouraging.
- 7 October 2024
- Published by Canadian Urological Association Journal in Canadian Urological Association Journal
- Vol. 19 (2) , 25-31
Fractional CO2 laser for the treatment of Peyronie’s disease
Introduction: Fractional CO2 laser therapy is used to treat fibrosing conditions similar to Peyronie’s disease (PD). The aim of the study was to evaluate the safety and efficacy of using a fractional CO2 laser in the management of chronic phase PD. Methods: This was a single-site, non-randomized, open-label study using a fractional CO2 laser. Subjects underwent three treatment sessions every six weeks with a fractional CO2 device. Topical triamcinolone was applied immediately after each treatment. Between treatments, patients performed penile modeling three times daily. Penile curvature assessments, self-reported questionnaires, and adverse event screenings were completed at baseline, 24 weeks, and at 52 weeks. Results: Five patients were included in the study. The median baseline penile curvature was 37.0° (interquartile range [IQR] 33.0°, 53.0°), and at 52 weeks, this had reduced to a median curvature to 28.0° (IQR 17.50°, 44.0°, p=0.03), representing a median reduction in penile curvature by 24.3% (IQR 17.0%, 47.5%). The International Index of Erectile Function Overall scores were comparable at baseline and at 52 weeks (median: 59.0, IQR: 42.5, 66.5 vs. median: 60.0, IQR 53.5, 70.0 respectively, p=0.81). Patients did report significant improvement in overall Peyronies’ disease questionnaire (PDQ) scores from baseline to 52 weeks after laser treatment (median 26.0, IQR15.0, 29.5, vs. median: 14.0, IQR 7.0, 22.50, respectively, p=0.03). Four patients reported self-limiting side effects immediately after laser therapy that resolved spontaneously within two weeks. Conclusions: Fractional CO2 laser therapy may serve as a well-tolerated and minimally invasive therapy for PD in the future, with results at 52 weeks being encouraging.
- Open Access
- 29 October 2023
- Published by SAGE Publications in Journal of Cutaneous Medicine and Surgery
- Vol. 27 (6) , 628-640
The Mind Body Connection in Dermatologic Conditions: A Literature Review
Psychodermatology pertains to the relationship between the skin and brain. This review aims to summarize the evidence of the mind body connection in four psychophysiological conditions: rosacea, atopic dermatitis (AD), acne vulgaris (AV), and psoriasis. A literature search was conducted using several English language databases. All four conditions share similar psychiatric co-morbidities, including but not limited to anxiety, depression, and suicidality. In rosacea, the upregulation of transient receptor potential vanilloid type 1, Toll like receptor 2, and Th17 cells releases downstream products that are simultaneously implicated in mood disorders. Stress exacerbates AV through the hypothalamic-pituitary-adrenal (HPA) system, which alters functioning of sebocytes and Cutibacterium acnes. In AD and psoriasis, the HPA axis influences Th1, Th2, Th22, and Th1, Th17 immune mediated responses, respectively. This leads to the secretion of pro-inflammatory cytokines which are also involved in the pathogenesis of anxiety and depression. Neurotransmitters implicated in mental illness, such as gamma-aminobutyric acid and serotonin, may also play a role in the development of AD and psoriasis. The management of cutaneous disease may mitigate psychological distress, and future research may show the corollary to also be true.
- 29 October 2023
- Published by SAGE Publications in Journal of Cutaneous Medicine and Surgery
- Vol. 27 (6) , 628-640
Open AccessThe Mind Body Connection in Dermatologic Conditions: A Literature Review
Psychodermatology pertains to the relationship between the skin and brain. This review aims to summarize the evidence of the mind body connection in four psychophysiological conditions: rosacea, atopic dermatitis (AD), acne vulgaris (AV), and psoriasis. A literature search was conducted using several English language databases. All four conditions share similar psychiatric co-morbidities, including but not limited to anxiety, depression, and suicidality. In rosacea, the upregulation of transient receptor potential vanilloid type 1, Toll like receptor 2, and Th17 cells releases downstream products that are simultaneously implicated in mood disorders. Stress exacerbates AV through the hypothalamic-pituitary-adrenal (HPA) system, which alters functioning of sebocytes and Cutibacterium acnes. In AD and psoriasis, the HPA axis influences Th1, Th2, Th22, and Th1, Th17 immune mediated responses, respectively. This leads to the secretion of pro-inflammatory cytokines which are also involved in the pathogenesis of anxiety and depression. Neurotransmitters implicated in mental illness, such as gamma-aminobutyric acid and serotonin, may also play a role in the development of AD and psoriasis. The management of cutaneous disease may mitigate psychological distress, and future research may show the corollary to also be true.
- Open Access
- 11 January 2023
- Published by Oxford University Press (OUP) in Aesthetic Surgery Journal Open Forum
- Vol. 5, ojad103
Cryolipolysis of the Arms and Inner Thighs Shows Similar Treatment Outcomes in Chinese Individuals Compared to White Individuals Treated in a Prior Study: The XinCOOL Study
Studies of predominantly White participants show that cryolipolysis reduces subcutaneous fat in the arms and inner thighs, but none have specifically tested for similar outcomes in participants of Chinese descent. This study assessed the safety and effectiveness of cryolipolysis treatment for noninvasive subcutaneous fat reduction of arms and inner thighs in participants of Chinese descent to assess equivalence to results seen in a prior study of White participants. Replicating a similar study design, participants of first- or second-generation Chinese descent underwent cryolipolysis treatment of arms and/or inner thighs. Effectiveness was assessed using pretreatment and posttreatment photographic review by blinded, independent experts, investigator-assessed caliper measurements, and participant satisfaction 12 weeks posttreatment. Safety was assessed throughout. Among 50 enrolled participants, 48 completed the study. The majority of participants (97.9%) were female, with a mean age of 36.0 years and mean BMI of 24.16 kg/m2 (range 19.3-29.9 kg/m2). Overall, 76.4% and 70.0% of pretreatment photographs of arms and pairs of inner thighs, respectively, were correctly identified by at least 2 of 3 reviewers. The mean reduction from baseline in caliper-measured fat thickness was 6.5 mm for arms and 6.6 mm for inner thighs, and the majority of participants (>60%) were satisfied with the treatment. No adverse events were reported. Cryolipolysis is a well-tolerated, effective means of noninvasive fat reduction of arms and inner thighs in participants of Chinese descent. The results from this study show similar effectiveness and safety in Chinese participants compared with White participants treated in a prior study.
- 11 January 2023
- Published by Oxford University Press (OUP) in Aesthetic Surgery Journal Open Forum
- Vol. 5, ojad103
Open AccessCryolipolysis of the Arms and Inner Thighs Shows Similar Treatment Outcomes in Chinese Individuals Compared to White Individuals Treated in a Prior Study: The XinCOOL Study
Studies of predominantly White participants show that cryolipolysis reduces subcutaneous fat in the arms and inner thighs, but none have specifically tested for similar outcomes in participants of Chinese descent. This study assessed the safety and effectiveness of cryolipolysis treatment for noninvasive subcutaneous fat reduction of arms and inner thighs in participants of Chinese descent to assess equivalence to results seen in a prior study of White participants. Replicating a similar study design, participants of first- or second-generation Chinese descent underwent cryolipolysis treatment of arms and/or inner thighs. Effectiveness was assessed using pretreatment and posttreatment photographic review by blinded, independent experts, investigator-assessed caliper measurements, and participant satisfaction 12 weeks posttreatment. Safety was assessed throughout. Among 50 enrolled participants, 48 completed the study. The majority of participants (97.9%) were female, with a mean age of 36.0 years and mean BMI of 24.16 kg/m2 (range 19.3-29.9 kg/m2). Overall, 76.4% and 70.0% of pretreatment photographs of arms and pairs of inner thighs, respectively, were correctly identified by at least 2 of 3 reviewers. The mean reduction from baseline in caliper-measured fat thickness was 6.5 mm for arms and 6.6 mm for inner thighs, and the majority of participants (>60%) were satisfied with the treatment. No adverse events were reported. Cryolipolysis is a well-tolerated, effective means of noninvasive fat reduction of arms and inner thighs in participants of Chinese descent. The results from this study show similar effectiveness and safety in Chinese participants compared with White participants treated in a prior study.
- Open Access
- 13 May 2022
- Published by Wiley in Journal of Cosmetic Dermatology
- Vol. 21 (6) , 2379-2386
Incidence and treatment of delayed‐onset nodules after VYC filler injections to 2139 patients at a single Canadian clinic
Background: Data suggest that hyaluronic acid (HA) fillers using VYC technology have a higher incidence of delayed‐onset nodule development at facial injection sites than earlier HA products.Objective: To assess the incidence of delayed‐onset nodules with VYC products based on a single experienced injector.Methods and Materials: Patients with delayed‐onset nodules after injections with VYC‐20L, VYC‐17.5L, and VYC‐15L were identified by retrospective chart review.Results: Since 2010, 2139 patients received injections from the same physician with combinations of VYC‐20L (57.6% of patients; 2.4 syringes/patient), VYC‐17.5L (23.9%; 1.5), or VYC‐15L (18.5%; 1.5). Seven female patients (mean age, 62 years) developed delayed‐onset nodules for an overall incidence of 0.33%. A potential inflammatory trigger (reported by 6 patients) occurred 1–168 days prior to nodule development. Nodule biopsy in 1 patient confirmed a foreign‐body granuloma. The most effective treatment incorporated prednisone with or without hyaluronidase, and in 2 patients, nodules resolved spontaneously. The incidence of delayed‐onset nodules was not associated with injection technique or amount of product used.Conclusion: VYC‐associated incidence of delayed‐onset nodules (0.33%) was lower than earlier estimates from previous studies. In the current analysis, VYC‐15L had a rate of delayed reactions comparable with non‐VYC products.
- 13 May 2022
- Published by Wiley in Journal of Cosmetic Dermatology
- Vol. 21 (6) , 2379-2386
Open AccessIncidence and treatment of delayed‐onset nodules after VYC filler injections to 2139 patients at a single Canadian clinic
Background: Data suggest that hyaluronic acid (HA) fillers using VYC technology have a higher incidence of delayed‐onset nodule development at facial injection sites than earlier HA products.Objective: To assess the incidence of delayed‐onset nodules with VYC products based on a single experienced injector.Methods and Materials: Patients with delayed‐onset nodules after injections with VYC‐20L, VYC‐17.5L, and VYC‐15L were identified by retrospective chart review.Results: Since 2010, 2139 patients received injections from the same physician with combinations of VYC‐20L (57.6% of patients; 2.4 syringes/patient), VYC‐17.5L (23.9%; 1.5), or VYC‐15L (18.5%; 1.5). Seven female patients (mean age, 62 years) developed delayed‐onset nodules for an overall incidence of 0.33%. A potential inflammatory trigger (reported by 6 patients) occurred 1–168 days prior to nodule development. Nodule biopsy in 1 patient confirmed a foreign‐body granuloma. The most effective treatment incorporated prednisone with or without hyaluronidase, and in 2 patients, nodules resolved spontaneously. The incidence of delayed‐onset nodules was not associated with injection technique or amount of product used.Conclusion: VYC‐associated incidence of delayed‐onset nodules (0.33%) was lower than earlier estimates from previous studies. In the current analysis, VYC‐15L had a rate of delayed reactions comparable with non‐VYC products.
- 26 December 2021
- Published by SAGE Publications in Journal of Cutaneous Medicine and Surgery
- Vol. 26 (3) , 329-330
Ingenol Mebutate Prior to Methyl Aminolevulinate Photodynamic Therapy for the Treatment of Actinic Keratosis: Results of a Pilot Study
- 26 December 2021
- Published by SAGE Publications in Journal of Cutaneous Medicine and Surgery
- Vol. 26 (3) , 329-330
Ingenol Mebutate Prior to Methyl Aminolevulinate Photodynamic Therapy for the Treatment of Actinic Keratosis: Results of a Pilot Study
- Open Access
- 22 September 2021
- Published by SAGE Publications in Journal of Cutaneous Medicine and Surgery
- Vol. 25 (1_suppl) , 3S
JCMS Abstracts 2021:
- 22 September 2021
- Published by SAGE Publications in Journal of Cutaneous Medicine and Surgery
- Vol. 25 (1_suppl) , 3S
Open AccessJCMS Abstracts 2021: