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McKenzie S, Wang J, Mora Hurtado AC, Uppal P, Taylor SC, Elbuluk N. Cosmetic injectables in skin of color: A review of uses, safety, and effectiveness of neuromodulators and dermal fillers. J Cosmet Dermatol 2024; 23:2345-2360. [PMID: 38553836 DOI: 10.1111/jocd.16297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 01/20/2024] [Accepted: 03/12/2024] [Indexed: 06/21/2024]
Abstract
BACKGROUND Skin of color (SOC) individuals represent a growing market for cosmetic injectables and can have different aesthetic goals and responses to treatment. OBJECTIVE A review of the uses, safety, and effectiveness of injectable neuromodulators and dermal fillers in SOC individuals. METHODS AND MATERIALS A search of the PubMed/MEDLINE database was conducted from August 1960 to December 2020. Studies that were included either had a focus on SOC (>20% SOC study participants) or dedicated article content commenting on the safety and/or efficacy of injectables in SOC participants. RESULTS Of the 503 publications identified, a total of 88 articles were selected for this review. Differences in aging and cultural factors can influence aesthetic goals amongst SOC populations. Available data suggests that botulinum toxin (BTX) and dermal fillers are safe and effective in SOC populations, with the largest amount of data existing for Asian populations. There remains a paucity of research on Black and Latinx populations. CONCLUSION BTX and dermal fillers are generally effective and well tolerated in SOC populations, particularly Asian populations for which the greatest amount of data exists. More high quality, randomized controlled trials in Black and Latinx populations are warranted.
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Affiliation(s)
- Shanice McKenzie
- Department of Dermatology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Jason Wang
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA
| | | | - Pushpinder Uppal
- Department of Anesthesia, University of Maryland, Baltimore, Maryland, USA
| | - Susan C Taylor
- Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Nada Elbuluk
- Department of Dermatology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
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Van Der Kelen L, Ureel M, Bauters W, Vermeersch H, Coopman R. Neurectomy of the Masseteric Nerve Using an Extra-Oral Approach to Treat Masseter Hypertrophy: Case Report and Literature Review. J Oral Maxillofac Surg 2023; 81:1476-1484. [PMID: 37709258 DOI: 10.1016/j.joms.2023.08.170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 08/10/2023] [Accepted: 08/21/2023] [Indexed: 09/16/2023]
Abstract
Masticatory muscle hypertrophy is a benign clinical anomaly which leads to facial asymmetry or a squared face appearance. We report a case of masticatory muscle hypertrophy, particularly on the right side, that was successfully treated by neurectomy of the right masseteric nerve through an extra-oral approach. Clinical examination showed significant aesthetic improvement of the facial symmetry with complete paralysis and atrophy of the right masseter muscle. The impaired postoperative function of the frontal branch of the right facial nerve was fully restored 10 weeks postoperatively. The patient no longer experiences headaches or discomfort with eating or sleeping on her right side.
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Affiliation(s)
- Louise Van Der Kelen
- Co-Assistant, Department of Oral and Maxillofacial Surgery, University Hospital Ghent, Ghent, Belgium
| | - Matthias Ureel
- Resident, Department of Oral and Maxillofacial Surgery, University Hospital Ghent, Ghent, Belgium
| | - Wouter Bauters
- Department Head, Department of Radiology and Imaging, University Hospital Ghent, Ghent, Belgium
| | - Hubert Vermeersch
- Resident, Department of Oral and Maxillofacial Surgery, University Hospital Ghent, Ghent, Belgium; Department Head, Department of Plastic, Reconstructive and Esthetic Surgery, University Hospital Ghent, Ghent, Belgium
| | - Renaat Coopman
- Department Head, Department of Plastic, Reconstructive and Esthetic Surgery, University Hospital Ghent, Ghent, Belgium.
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Vokurka Topljak S, Galiot Delić M, Mandić K, Perić S, Baretić M, Juri Mandić J. Nonsurgical treatment for upper eyelid retraction in patients with inactive Graves' orbitopathy. Int Ophthalmol 2023:10.1007/s10792-022-02625-7. [PMID: 36587368 PMCID: PMC9805617 DOI: 10.1007/s10792-022-02625-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 12/20/2022] [Indexed: 01/02/2023]
Abstract
PURPOSE To evaluate the effectiveness of incobotulinumtoxinA (Xeomin®) in treating upper eyelid retraction in patients with Graves orbitopathy (GO) initially scheduled for surgery via two different application sites. METHODS This is a comparative, prospective study, conducted at the Department of Ophthalmology, Medical School, University Hospital Centre Zagreb, EUGOGO site (EUropean Group On Graves' Orbitopathy) in Croatia from January 2020 till January of 2021 in accordance with national health headquarter recommendations. All patients were classified as inactive with marked eyelid retraction and randomly divided into groups according to application sites. Group A underwent transconjunctival application (18 eyes) and group B transcutaneous application (20 eyes) of incobotulinumtoxinA. The primary end point of this study was lowering the eyelid, to alleviate anterior eye segment symptoms and achieve acceptable aesthetic appearance until surgery becomes available. RESULTS There were no nonresponders and we found no statistically significant difference in the degree of lowering the eyelid between the two application sites. Following rules for avoiding spread of SARS-CoV-19, none of the patients included in this study were infected. Moreover, participants reported diminishing of anterior eye segment irritation and improved aesthetics. CONCLUSION Treatment of inactive GO patients with incobotulinumtoxinA for upper eyelid retraction is efficient and safe and can be used as an adjuvant treatment while patients wait for surgery, by alleviating symptoms and improving the level of aesthetic satisfaction without causing a threat to anterior eye segment and visual function. The study showed that effect of treatment was the same, whether we applied the toxin transconjunctivaly or transcutaneously.
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Affiliation(s)
- Sandra Vokurka Topljak
- Department of Ophthalmology, General Hospital Bjelovar, Ulica Antuna Mihanovića 8, 43000, Bjelovar, Croatia.
| | | | - Krešimir Mandić
- Department of Ophthalmology, University Hospital Centre Zagreb, Zagreb, Croatia
- School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Sanja Perić
- Department of Ophthalmology, University Hospital Centre Zagreb, Zagreb, Croatia
- School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Maja Baretić
- School of Medicine, University of Zagreb, Zagreb, Croatia
- Department of Endocrinology, University Hospital Centre Zagreb, Zagreb, Croatia
| | - Jelena Juri Mandić
- Department of Ophthalmology, University Hospital Centre Zagreb, Zagreb, Croatia
- School of Medicine, University of Zagreb, Zagreb, Croatia
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Shin DM, Lee J, Noh H, Jang D, Oh SJ, Park JH, Lee JH. A Double-Blind, Split-Face, Randomized Study on the Effects and Safety of Intradermal Injection of Botulinum Toxin A (Incobotulinum Toxin A) in the Cheek. Ann Dermatol 2022; 34:442-450. [PMID: 36478426 PMCID: PMC9763912 DOI: 10.5021/ad.21.316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 03/11/2022] [Accepted: 08/01/2022] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Intradermal injection of botulinum toxin A (BTXA) is used for cosmetic purposes without strong evidence for clinical use, as opposed to intramuscular injection. OBJECTIVE To evaluate the efficacy and safety of intradermal injection of incobotulinum toxin A (iBTXA) in the cheeks. METHODS We conducted a study with 18 volunteers who received intradermal injection of iBTXA into one cheek and normal saline into the contralateral side as a control. Volunteers visited the clinic at weeks 2, 4, 8, and 12 after injection. At each visit, pores and wrinkles were evaluated by a facial analyzer, sebum secretion by a sebumeter, skin texture by both volunteers and clinicians, and wrinkles of the nasolabial fold were graded with photographic reviews. RESULTS There were no significant effects on the wrinkles of the infraorbital area and sebum secretion. However, there were significant improvements in the wrinkles of the nasolabial fold and skin texture on the iBTXA injected side. The effects on the wrinkles of the nasolabial fold lasted 12 weeks, and those on skin texture lasted 8 weeks. Improvement in the pore size was observed only at week 2. No serious adverse events were reported except one volunteer who complained of facial palsy after the injection of 30 units of iBTXA in one cheek. However, injection of 20 units of iBTXA in one cheek was not associated with any adverse events. CONCLUSION Intradermal injection of iBTXA, could provide clinical benefits for skin texture and wrinkles overcoming the skin prick effect without obvious side effects.
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Affiliation(s)
- Dong Min Shin
- Department of Dermatology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jongeun Lee
- Department of Dermatology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hyungrye Noh
- Department of Dermatology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Donghwi Jang
- Department of Dermatology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Se Jin Oh
- Department of Dermatology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ji Hye Park
- Department of Dermatology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jong Hee Lee
- Department of Dermatology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.,Department of Medical Device Management & Research, The Samsung Advanced Institute for Health Sciences & Technology (SAIHST), Sungkyunkwan University, Seoul, Korea
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Li Y, Cai L, Zhang X, Yin B, Gong X, Li F, Han X. Types of periocular wrinkles based on anatomical and contractile characteristics of participating periocular muscles: A modified classification method and personalized injection technique. J Cosmet Dermatol 2022; 21:5591-5600. [PMID: 35770305 DOI: 10.1111/jocd.15197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/27/2022] [Accepted: 06/27/2022] [Indexed: 12/27/2022]
Abstract
BACKGROUND Clinical classification methods for periocular wrinkles based on participating muscle behavior are lacking, and traditional treatment lacks detailed and individualized methods. AIMS This study aimed to propose a modified classification system and individualized treatment for periocular wrinkles based on the participating muscles. PATIENTS/METHODS Periocular wrinkles were classified into types I.I, I.II, I.III, II, and III. A personalized treatment pattern with a multipoint, low-dose technique was developed based on wrinkle classification and severity. Standard photographs were taken and assessments made at follow-up to evaluate wrinkle severity. RESULTS Wrinkle severity was reduced at 1 and 3 months after periorbital botulinum toxin injection, and no serious adverse events were recorded. CONCLUSIONS Periorbital wrinkles were classified according to participating muscles. The modified injection pattern was individualized, effective, and safe for the treatment of periorbital wrinkles.
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Affiliation(s)
- Yilin Li
- Department of Body Contouring and Liposuction Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lei Cai
- Department of Body Contouring and Liposuction Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xinyu Zhang
- Department of Body Contouring and Liposuction Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Bo Yin
- Department of Body Contouring and Liposuction Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xi Gong
- Peking University School and Hospital of Stomatology & NHC Research Center of Engineering and Technology for Computerized Dentistry, Beijing, China
| | - Facheng Li
- Department of Body Contouring and Liposuction Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xuefeng Han
- Department of Body Contouring and Liposuction Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Effects of Two Botulinum Toxin Type a Evaluated by Shear Wave Elastography and Electromyographic Measurements of Masseter Reduction. J Craniofac Surg 2022; 33:1450-1453. [PMID: 35758504 DOI: 10.1097/scs.0000000000008368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 10/07/2021] [Indexed: 10/17/2022] Open
Abstract
ABSTRACT The purpose of this study was to evaluate the efficacy and safety of onabotulinumtoxin A and Chinese botulinum toxin type A (CBA) for masseter reduction using elastography and electromyographic measurement. Female subjects aged 21 to 38 years with benign masseter hypertrophy received 1 treatment of either 50 units onabotulinumtoxin A or 50 units CBA in a double-blind clinical trial. The study enrolled 102 subjects (204 sides of masseters); 51 subjects per group. The thickness and stiffness of the masseter muscle and the electromyographic changes were evaluated before and 1, 4, 12, and 24 weeks after injection. One week after injection, the thickness of the masseter muscle did not change significantly, but the stiffness was reduced by 5% to 9%. After 4 weeks of injection, masseter muscle thickness, stiffness and strength decreased significantly compared with before injection. The changes were significantly at 12 weeks. Muscle stiffness measured by Shear-wave elastography was significantly reduced by 20% to 32% in the relaxed state and 25% to 47% in the contractile state. The electromyography showed that masseter muscle strength changed consistently with Shear-wave elastography value before and after injection. Six months after injection, ultrasound and electromyography showed that the masseter muscle thickness and stiffness began to recover. Between the 2 groups, there are no significant difference in thickness, stiffness and muscle strength reduction of masseters after treatment (P > 0.05), as well as in side effects (P > 0.05). Onabotulinumtoxin A and CBA were comparable in the efficacy and safety for masseter reduction.
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Pereira IN, Hassan H. Botulinum toxin A in dentistry and orofacial surgery: an evidence-based review - part 2: cosmetic applications. Evid Based Dent 2022:10.1038/s41432-022-0277-4. [PMID: 35710887 DOI: 10.1038/s41432-022-0277-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 08/31/2021] [Indexed: 11/08/2022]
Abstract
Objective An evidence-based review on the role of botulinum toxin type A (BoNTA) on diverse cosmetic applications of interest to dental practitioners and allied specialities. In this context, to identify the cosmetic treatments that have an evidence-based rationale against areas requiring further research, with a view to assess the safety and efficacy of BoNTA.Data source and selection A comprehensive search was conducted using Cochrane Library of Systematic Reviews, Cochrane Central Register of Controlled Trials, and PubMed (Medline) electronic databases. Thirty-nine studies of variable quality were included. The Best Evidence Topics (BETs) Critical Appraisal Tool was used to facilitate the quality assessment of relevant studies.Data extraction Based on current level II evidence, BoNTA was safe and effective to improve facial contour, reduce volume and thickness of bilateral hypertrophic masseter. Conservative doses using a combined approach of BoNTA and hyaluronic acid was recommended as a safe and effective treatment for perioral enhancement supported by level II evidence. There was limited evidence, not higher than level III, to support BoNTA effectiveness for gummy smile associated to perioral musculature hyperactivity, while jawline sculpting targeting the platysma muscle had lower level IV evidence up to this date.Conclusion BoNTA has been widely used off-label for the investigated cosmetic orofacial conditions, with reports of 'good patient and practitioner satisfaction'. However, there is limited high-quality evidence to support the long-term safety and effectiveness of repetitive BoNTA injections. Additionally, no studies were found that provided a cost-effectiveness evaluation of BoNTA formulations against other current cosmetic interventions. Well-designed clinical trials, including long-term follow-up, would help to provide robust evidence-based recommendations for clinical practice, supporting BoNTA popularity, independently or in a combined approach.
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Affiliation(s)
- Ines Novo Pereira
- Academic Plastic Surgery, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, E1 2AT, UK
| | - Haidar Hassan
- Academic Plastic Surgery, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, E1 2AT, UK.
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Rauso R, Lo Giudice G, Tartaro G, Zerbinati N, Nicoletti GF, Fragola R. Botulinum toxin type A injections for masticatory muscles hypertrophy: A systematic review. J Craniomaxillofac Surg 2021; 50:7-18. [PMID: 34620536 DOI: 10.1016/j.jcms.2021.09.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 09/13/2021] [Accepted: 09/26/2021] [Indexed: 12/27/2022] Open
Abstract
The aim of this study is to compare the efficacy of single-point injection of botulinum toxin A versus multi-point operative protocols found in the literature in reducing hypertrophy in patients with masticatory muscle hypertrophy. A systematic review was performed in accordance with the Park et al., 2018 guidelines, selecting articles from PubMed, Google Scholar, Web of Science and Ovid databases up to July 8, 2020.28 studies met the eligibility criteria. 748 patients were treated for masseter hypertrophy (MH) and 4 patients for temporal muscle hypertrophy. As for MH: in 45.2% of cases 3 injection sites (IS) were used, in 18.8% 1 IS, in 16.2% 2 IS, in 13% 5 IS, in 4.1% 6 IS, 2.7% 4 IS. At three months, the mean reduction in masseter muscle thickness is 26-31% when 1 IS was used, 28% in 2 IS, 12-27% in 3 IS and 22-30% in 6 IS. Heterogeneity of results, high bias level and selective reports led to a difficult efficacy comparison of the injection techniques described. Data suggest that the lowest number of IS possible should be used until stronger evidences are presented. Homogeneity in pre- and post-operative protocols is needed to establish a reliable setting for the condition under study.
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Affiliation(s)
- Raffaele Rauso
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, Oral and Maxillofacial Surgery Unit, University of Campania "Luigi Vanvitelli", Via Luigi De Crecchio 6, 80138, Naples, Italy
| | - Giorgio Lo Giudice
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, Maxillofacial Surgery Unit, University of Naples "Federico II", Via Pansini 5, 80131, Naples, Italy.
| | - Gianpaolo Tartaro
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, Oral and Maxillofacial Surgery Unit, University of Campania "Luigi Vanvitelli", Via Luigi De Crecchio 6, 80138, Naples, Italy
| | - Nicola Zerbinati
- Dermatology Department, University of Insubria, Via Guicciardini 9, 21100, Varese, Italy
| | - Giovanni Francesco Nicoletti
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, Plastic Surgery Unit, University of Campania "Luigi Vanvitelli", Via Luigi De Crecchio 6, 80138, Naples, Italy
| | - Romolo Fragola
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, Oral and Maxillofacial Surgery Unit, University of Campania "Luigi Vanvitelli", Via Luigi De Crecchio 6, 80138, Naples, Italy
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Abstract
LEARNING OBJECTIVES After studying this article, the participant should be able to: 1. Compare and contrast the various types of botulinum toxin on the market. 2. Appropriately select patients for treatment with cosmetic botulinum toxin. 3. Understand the common injection patterns for treating various regions of the face with cosmetic botulinum toxin. 4. List the complications associated with treating various regions of the face with cosmetic botulinum toxin. SUMMARY Nonsurgical rejuvenation of the face with botulinum toxin is one of the most commonly performed procedures in the United States. This article reviews the current evidence in treating different regions of the face: upper face, lower face, masseter, and platysma. Dosing and complications associated with different facial regions are reviewed.
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Camargo CP, Xia J, Costa CS, Gemperli R, Tatini MD, Bulsara MK, Riera R. Botulinum toxin type A for facial wrinkles. Cochrane Database Syst Rev 2021; 7:CD011301. [PMID: 34224576 PMCID: PMC8407355 DOI: 10.1002/14651858.cd011301.pub2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Botulinum toxin type A (BontA) is the most frequent treatment for facial wrinkles, but its effectiveness and safety have not previously been assessed in a Cochrane Review. OBJECTIVES To assess the effects of all commercially available botulinum toxin type A products for the treatment of any type of facial wrinkles. SEARCH METHODS We searched the following databases up to May 2020: the Cochrane Skin Specialised Register, CENTRAL, MEDLINE, Embase, and LILACS. We also searched five trials registers, and checked the reference lists of included studies for further references to relevant randomised controlled trials (RCTs). SELECTION CRITERIA We included RCTs with over 50 participants, comparing BontA versus placebo, other types of BontA, or fillers (hyaluronic acid), for treating facial wrinkles in adults. DATA COLLECTION AND ANALYSIS We used standard methodological procedures expected by Cochrane. Primary outcomes were participant assessment of success and major adverse events (AEs) (eyelid ptosis, eyelid sensory disorder, strabismus). Secondary outcomes included physician assessment of success; proportion of participants with at least one AE and duration of treatment effect. We used GRADE to assess the certainty of the evidence for each outcome. MAIN RESULTS We included 65 RCTs, involving 14,919 randomised participants. Most participants were female, aged 18 to 65 years. All participants were outpatients (private office or day clinic). Study duration was between one week and one year. No studies were assessed as low risk of bias in all domains; the overall risk of bias was unclear for most studies. The most common comparator was placebo (36 studies). An active control was used in 19 studies. There were eight dose-ranging studies of onabotulinumtoxinA, and a small number of studies compared against fillers. Treatment was given in one cycle (54 studies), two cycles (three studies), or three or more cycles (eight studies). The treated regions were glabella (43 studies), crow's feet (seven studies), forehead (two studies), perioral (two studies), full face (one study), or more than two regions (nine studies). Most studies analysed moderate to severe wrinkles; mean duration of treatment was 20 weeks. The following results summarise the main comparisons, based on studies of one treatment cycle for the glabella. AEs were collected over the duration of these studies (over four to 24 weeks). Compared to placebo, onabotulinumtoxinA-20 U probably has a higher success rate when assessed by participants (risk ratio (RR) 19.45, 95% confidence interval (CI) 8.60 to 43.99; 575 participants; 4 studies; moderate-certainty evidence) or physicians (RR 17.10, 95% CI 10.07 to 29.05; 1339 participants; 7 studies; moderate-certainty evidence) at week four. Major AEs are probably higher with onabotulinumtoxinA-20 U (Peto OR 3.62, 95% CI 1.50 to 8.74; 1390 participants; 8 studies; moderate-certainty evidence), but there may be no difference in any AEs (RR 1.14, 95% CI 0.89 to 1.45; 1388 participants; 8 studies; low-certainty evidence). Compared to placebo, abobotulinumtoxinA-50 U has a higher participant-assessed success rate at week four (RR 21.22, 95% CI 7.40 to 60.56; 915 participants; 6 studies; high-certainty evidence); and probably has a higher physician-assessed success rate (RR 14.93, 95% CI 8.09 to 27.55; 1059 participants; 7 studies; moderate-certainty evidence). There are probably more major AEs with abobotulinumtoxinA-50 U (Peto OR 3.36, 95% CI 0.88 to 12.87; 1294 participants; 7 studies; moderate-certainty evidence). Any AE may be more common with abobotulinumtoxinA-50 U (RR 1.25, 95% CI 1.05 to 1.49; 1471 participants; 8 studies; low-certainty evidence). Compared to placebo, incobotulinumtoxinA-20 U probably has a higher participant-assessed success rate at week four (RR 66.57, 95% CI 13.50 to 328.28; 547 participants; 2 studies; moderate-certainty evidence), and physician-assessed success rate (RR 134.62, 95% CI 19.05 to 951.45; 547 participants; 2 studies; moderate-certainty evidence). Major AEs were not observed (547 participants; 2 studies; moderate-certainty evidence). There may be no difference between groups in any AEs (RR 1.17, 95% CI 0.90 to 1.53; 547 participants; 2 studies; low-certainty evidence). AbobotulinumtoxinA-50 U is no different to onabotulinumtoxinA-20 U in participant-assessed success rate (RR 1.00, 95% CI 0.92 to 1.08, 388 participants, 1 study, high-certainty evidence) and physician-assessed success rate (RR 1.01, 95% CI 0.95 to 1.06; 388 participants; 1 study; high-certainty evidence) at week four. Major AEs are probably more likely in the abobotulinumtoxinA-50 U group than the onabotulinumtoxinA-20 U group (Peto OR 2.65, 95% CI 0.77 to 9.09; 433 participants; 1 study; moderate-certainty evidence). There is probably no difference in any AE (RR 1.02, 95% CI 0.67 to 1.54; 492 participants; 2 studies; moderate-certainty evidence). IncobotulinumtoxinA-24 U may be no different to onabotulinumtoxinA-24 U in physician-assessed success rate at week four (RR 1.01, 95% CI 0.96 to 1.05; 381 participants; 1 study; low-certainty evidence) (participant assessment was not measured). One participant reported ptosis with onabotulinumtoxinA, but we are uncertain of the risk of AEs (Peto OR 0.02, 95% CI 0.00 to 1.77; 381 participants; 1 study; very low-certainty evidence). Compared to placebo, daxibotulinumtoxinA-40 U probably has a higher participant-assessed success rate (RR 21.10, 95% CI 11.31 to 39.34; 683 participants; 2 studies; moderate-certainty evidence) and physician-assessed success rate (RR 23.40, 95% CI 12.56 to 43.61; 683 participants; 2 studies; moderate-certainty evidence) at week four. Major AEs were not observed (716 participants; 2 studies; moderate-certainty evidence). There may be an increase in any AE with daxibotulinumtoxinA compared to placebo (RR 2.23, 95% CI 1.46 to 3.40; 716 participants; 2 studies; moderate-certainty evidence). Major AEs reported were mainly ptosis; BontA is also known to carry a risk of strabismus or eyelid sensory disorders. AUTHORS' CONCLUSIONS BontA treatment reduces wrinkles within four weeks of treatment, but probably increases risk of ptosis. We found several heterogeneous studies (different types or doses of BontA, number of cycles, and different facial regions) hindering meta-analyses. The certainty of the evidence for effectiveness outcomes was high, low or moderate; for AEs, very low to moderate. Future RCTs should compare the most common BontA (onabotulinumtoxinA, abobotulinumtoxinA, incobotulinumtoxinA, daxibotulinumtoxinA, prabotulinumtoxinA) and evaluate long-term outcomes. There is a lack of evidence about the effects of multiple cycles of BontA, frequency of major AEs, duration of effect, efficacy of recently-approved BontA and comparisons with other treatments.
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Affiliation(s)
- Cristina Pires Camargo
- Laboratory of Microsurgery and Plastic Surgery (LIM-04), School of Medicine, Universidade de São Paulo, São Paulo, Brazil
| | - Jun Xia
- Nottingham China Health Institute, The University of Nottingham Ningbo, Ningbo, China
| | - Caroline S Costa
- Department of Specialised Medicine, Discipline of Dermatology, Universidade Federal do Piaui, Teresina, Brazil
| | - Rolf Gemperli
- Department of Surgery, Discipline of Plastic Surgery, Universidade de São Paulo, São Paulo, Brazil
| | - Maria Dc Tatini
- c/o Cochrane Skin Group, The University of Nottingham, Nottingham, UK
| | - Max K Bulsara
- Institute for Health Research, University of Notre Dame Australia, Fremantle, Australia
- School of Population and Global Health, The University of Western Australia, Perth, Australia
- Division of Surgery and Interventional Science, University College London, London, UK
| | - Rachel Riera
- Cochrane Brazil Rio de Janeiro, Cochrane, Petrópolis, Brazil
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Vachiramon V, Subpayasarn U, Triyangkulsri K, Jurairattanaporn N, Rattananukrom T. Different injection patterns of incobotulinumtoxinA for crow's feet: a split-face comparative study. J Eur Acad Dermatol Venereol 2020; 35:256-262. [PMID: 33068445 DOI: 10.1111/jdv.16997] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 10/05/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND IncobotulinumtoxinA has been previously used for the treatment of lateral periorbital lines (crow's feet). However, a standardized injection technique has not been established. OBJECTIVES To compare the efficacy and effect duration of two injection techniques of incobotulinumtoxinA for crow's feet treatment. METHODS Forty-eight patients with crow's feet were recruited and randomly assigned to receive bilateral treatments using either a 3-point intramuscular or a 6-point intradermal injection technique (8-12 units of incobotulinumtoxinA on each side). Improvement was assessed at 1, 2, 4, 8, 12, 16, 20 and 24 weeks postinjection. An objective evaluation was assessed by the indentation index using a 3D camera and a subjective evaluation was assessed by a blinded dermatologist using the Flynn validated assessment scale (FVAS) for the upper face. The patients assessed the results using the Global Aesthetic Improvement Scale (GAIS). Side-effects were evaluated at each visit. RESULTS After treatment, a significantly greater reduction in the indentation index of periorbital wrinkles on the 3-point intramuscular injection side compared with the 6-point intradermal injection side was observed at 8, 12, and 16 weeks. The results from the FVAS and GAIS scores showed significantly longer median times to relapse of the periorbital wrinkle for the 3-point intramuscular injection compared with the 6-point intradermal injection. Pain and bruising were slightly greater with the 6-point intradermal technique. CONCLUSIONS This study reaffirmed the efficacy of incobotulinumtoxinA for the treatment of crow's feet. The 3-point intramuscular injection technique yielded greater efficacy and longer duration of action than the 6-point intradermal injection technique.
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Affiliation(s)
- V Vachiramon
- Division of Dermatology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - U Subpayasarn
- Division of Dermatology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - K Triyangkulsri
- Division of Dermatology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - N Jurairattanaporn
- Division of Dermatology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - T Rattananukrom
- Division of Dermatology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
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Abstract
Botulinum toxin type A (BoNTA) is a powerful neurotoxin that inhibits acetylcholine release from presynaptic vesicles. The potency and safety profile of BoNTA grant the toxin vast therapeutic potential. It has been used off-label for a variety of dermatologic conditions. This review aims to analyze published literature regarding the benefits and risks of the off-label use of BoNTA beyond facial lines, including eccrine hidrocystomas, enlarged pores, keloids and hypertrophic scars, hidradenitis suppurativa, hyperhidrosis, masseter muscle hypertrophy, and salivary gland hypertrophy, among others. A MEDLINE search from January 2000 to December 2019 was conducted on the off-label uses of botulinum toxin in dermatology.
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Affiliation(s)
- Tina S Alster
- Washington Institute of Dermatologic Laser Surgery, 1430 K St NW, Suite 200, Washington, DC, 20005, USA.
| | - Iris S Harrison
- Washington Institute of Dermatologic Laser Surgery, 1430 K St NW, Suite 200, Washington, DC, 20005, USA
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Nestor MS, Arnold D, Fischer D. The mechanisms of action and use of botulinum neurotoxin type A in aesthetics: Key Clinical Postulates II. J Cosmet Dermatol 2020; 19:2785-2804. [PMID: 32866999 PMCID: PMC7693297 DOI: 10.1111/jocd.13702] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 08/20/2020] [Indexed: 12/22/2022]
Abstract
BACKGROUND The literature on botulinum neurotoxin type A (BoNT-A) is extensive, often contradictory, and confounded by a competitive market of products and research attempting to distinguish brand individuality. METHODS A comprehensive review of literature on the principles of BoNT-A in aesthetics as well as clinical examples. RESULTS In 2017, the Eight Key Clinical Postulates were formulated as a guide for the aesthetic practitioner in understanding BoNT-A pharmacodynamics and to compare different toxins. These are now updated to include (a) All type A toxins act identically; (b) The mathematical relationship between toxin and receptor is the basis of efficacy, and clinical efficacy is influenced by molecular potency and patient attributes including muscle mass, gender, age, and ethnicity; (c) Efficacy, onset, and duration are functions of "molecular potency" defined as the number of active 150 kDa molecules available for binding; (d) "Molecular potency" is difficult to objectively quantify for commercially available toxins; (e) Up to a point, increased molecular potency decreases time to onset and increases duration of effect, and the "Molecular Potency Quotient" is a construct for comparing molecular potency commercial cost; (f) The area of effect of a toxin injection is dependent upon molecular potency, diffusion (passive), and spread (active); (g) Differing reconstitution volumes; and (h) Increased number of injection sites can affect spread, onset, and duration of effect. CONCLUSIONS The principles of BoNT-A use in aesthetics are complex yet understandable as outlined in the framework of the updated Eight Key Clinical Postulates and serves as a useful tool for providing the most effective treatment and interpreting research on present and future toxin formulations.
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Affiliation(s)
- Mark S. Nestor
- Center for Clinical and Cosmetic ResearchAventuraFloridaUSA
- Department of Dermatology and Cutaneous SurgeryUniversity of Miami Miller School of MedicineMiamiFloridaUSA
- Department of SurgeryDivision of Plastic SurgeryUniversity of Miami Miller School of MedicineMiamiFloridaUSA
| | - David Arnold
- Center for Clinical and Cosmetic ResearchAventuraFloridaUSA
| | - Daniel Fischer
- Center for Clinical and Cosmetic ResearchAventuraFloridaUSA
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Shome D, Vadera S, Shiva Ram M, Kapoor R. Efficacy of Incobotulinum toxin-A for the treatment of masseter muscle hypertrophy in Asian Indian patients: A 2-year follow-up study. J Cosmet Dermatol 2020; 19:1892-1899. [PMID: 32539203 DOI: 10.1111/jocd.13552] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 06/09/2020] [Indexed: 11/27/2022]
Abstract
BACKGROUND With the changing trends, more and more patients are opting for nonsurgical or minimally invasive options for reshaping the face. Noninvasive treatments such as incobotulinumtoxinA (Xeomin Cosmetic® ; Merz Pharma Canada Ltd., Burlington, ON, Canada) are a preferred modality for reducing the volume of the muscle and therefore reducing the width of masseter. AIMS To evaluate the efficacy of Xeomin treatment in long-term management of bilateral masseter hypertrophy in Asian Indian patients. PATIENTS/METHODS A total of 30 patients were enrolled in the study and were injected with 30 U Xeomin on each side of face, at baseline. Fifteen patients received a second session of Xeomin injection at 12th week, and remaining 15 patients received an additional third session, at 12th and 24th weeks post the first injection, respectively. Follow-up was done at 4th-, 12th-, 24th-, and 36th-week and at first- and second-year follow-ups. RESULTS For the patients who received two injections, the maximum reduction of 26.85% was observed at 24th week, which was maintained as 20.04% reduction until second follow-up year. The patients who received three injections exhibited very high reduction of 43.12% of masseter volume at 36th week, which was maintained at 38.72 % until the second follow-up year. Three sessions of Xeomin injections were proved to be more effective in long-term maintenance of reduced masseter volume than 2 sessions of injections. CONCLUSIONS Xeomin injections were found to be effective in long-term management of bilateral masseter hypertrophy. This is the first of its kind paper, which evaluates the long-term effects of Xeomin injections for the treatment of masseter hypertrophy.
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Affiliation(s)
- Debraj Shome
- Department of Facial Plastic Surgery, The Esthetic Clinics, Mumbai, India
| | - Sapna Vadera
- Facial Plastic Surgery and Facial Cosmetic Surgery, The Esthetic Clinics, Mumbai, India
| | - Male Shiva Ram
- The Esthetic Clinics & School of Medical Sciences, University of Hyderabad, Hyderabad, India
| | - Rinky Kapoor
- Department of Dermatology, Cosmetic Dermatology and Dermato-Surgery, The Esthetic Clinics, Mumbai, India
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16
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Alam M, Tung R. Injection technique in neurotoxins and fillers: Planning and basic technique. J Am Acad Dermatol 2018; 79:407-419. [DOI: 10.1016/j.jaad.2018.01.034] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Injection technique in neurotoxins and fillers: Indications, products, and outcomes. J Am Acad Dermatol 2018; 79:423-435. [DOI: 10.1016/j.jaad.2018.01.037] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Yeh YT, Peng JH, Peng HLP. Literature review of the adverse events associated with botulinum toxin injection for the masseter muscle hypertrophy. J Cosmet Dermatol 2018; 17:675-687. [DOI: 10.1111/jocd.12721] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 07/18/2018] [Accepted: 06/28/2018] [Indexed: 11/27/2022]
Affiliation(s)
- Yu-Ting Yeh
- P-Skin Professional Clinic; Kaohsiung Taiwan
| | - Jui-Hui Peng
- National Yang-Ming University School of Medicine; Taipei Taiwan
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Nikolis A, Enright KM, Masouri S, Bernstein S, Antoniou C. Prospective evaluation of incobotulinumtoxinA in the management of the masseter using two different injection techniques. Clin Cosmet Investig Dermatol 2018; 11:347-356. [PMID: 30034247 PMCID: PMC6047857 DOI: 10.2147/ccid.s164848] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Background IncobotulinumtoxinA (Xeomin Cosmetic®) has been used previously in the management of masseteric hypertrophy. However, a standardized injection technique has not been established. The goal of the present study was to evaluate the efficacy and safety of two injection techniques in the management of masseteric hypertrophy using incobotulinumtoxinA. Methods Thirty female patients with masseteric hypertrophy were recruited and evenly randomized to receive bilateral treatments of either a single-injection technique (SIT) or a multiinjection technique (MIT). Improvement of masseteric hypertrophy was assessed at week 16 using standardized measurements and photographs. Patients completed a 5-point satisfaction questionnaire while physicians completed the Global Aesthetic Improvement Scale (GAIS) and 10-point photonumeric masseter prominence rating scale. Results There were no significant differences in physician ratings on the photonumeric scale and GAIS between the SIT and MIT groups. Results of the standardized measurements also revealed no significant difference between injection techniques. Majority of patients at every visit reported being “satisfied” with treatment results. Clinically, the number and severity of adverse events were similar between groups. Conclusion This study supports the noninferiority of both SIT and MIT with regard to efficacy and safety in the management of masseteric hypertrophy, using incobotulinumtoxinA.
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Affiliation(s)
- Andreas Nikolis
- Victoria Park Medispa, Westmount, .,Department of Plastic Surgery, University of Montreal, .,VP Research Unit, .,Erevna Innovations Inc.,
| | - Kaitlyn M Enright
- Victoria Park Medispa, Westmount, .,VP Research Unit, .,Erevna Innovations Inc., .,Department of Experimental Surgery, McGill University, Montreal, QC, Canada
| | - Sofia Masouri
- Department of Experimental Surgery, McGill University, Montreal, QC, Canada
| | - Steven Bernstein
- Department of Dermatology, University of Montreal, Montreal, QC, Canada
| | - Christina Antoniou
- Department of Dermatology, National and Kapodistrian University of Athens, Athens, Greece
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IncobotulinumtoxinA Is an Effective and Well-Tolerated Treatment for Upper Facial Lines: Results From an Open-Label Extension Period of a Phase III Study. Dermatol Surg 2017; 43 Suppl 3:S285-S292. [PMID: 33065954 DOI: 10.1097/dss.0000000000001416] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND In clinical practice, different upper facial areas are commonly treated together. OBJECTIVE To evaluate the efficacy and safety of repeated incobotulinumtoxinA injections for the treatment of upper facial lines (UFL) in a 3-month open-label extension (OLEX) period. MATERIALS AND METHODS In the main study period (randomized, double blind, placebo controlled; n = 156), subjects with moderate-to-severe UFL (glabellar frown lines [GFL], horizontal forehead lines [HFL], and lateral periorbital lines [LPL]) on the 5-point Merz Aesthetics Scales (MAS) received 54 to 64 U incobotulinumtoxinA or placebo. In the OLEX, all subjects (n = 139) received 1 treatment with 54 to 64 U incobotulinumtoxinA. Investigator- and subject-assessed MAS scores were evaluated at rest and maximum contraction. Response was defined either as a MAS score of "none" or "mild" or a ≥1-point improvement in MAS scores. RESULTS A clear, rapid treatment response was seen in each individual treated area and for all areas combined. At Day 30, a response of none or mild at maximum contraction (investigator's rating) was reported for 80.1%, 77.2%, and 66.9% of subjects for GFL, HFL, and LPL, respectively. IncobotulinumtoxinA was well tolerated, with no evidence of an increase in adverse events with repeat injection. CONCLUSION IncobotulinumtoxinA is highly effective for the simultaneous treatment of UFL with a good safety profile (EudraCT Number: 2011-005887-20).
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The Use of Botulinum Neurotoxin Type A in Aesthetics: Key Clinical Postulates. Dermatol Surg 2017; 43 Suppl 3:S344-S362. [PMID: 33065958 DOI: 10.1097/dss.0000000000001412] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND The most common aesthetic procedure performed worldwide is the injection of botulinum neurotoxin Type A (BoNT-A). Aesthetic providers must fully comprehend the objective scientific data, theoretical mechanisms of action, and differences between brands of BoNT-A. OBJECTIVE To determine and review the relevant clinical postulates for the use of botulinum toxin in aesthetics. MATERIALS AND METHODS The BoNT-A clinical postulates presented here discuss how each brand of BoNT-A acts identically, how the molecular potency may vary between the different products, how patient age, gender, genetics, and muscle mass cause variation in toxin receptor number and density, and how both practitioner and patient can affect toxin distribution. RESULTS A total of 8 clinical postulates have been identified that are key to understanding the use of botulinum toxin in aesthetics and to obtaining the best clinical results. CONCLUSION All of these factors affect the potential efficacy of the injected toxin and hence the aesthetic results obtained.
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Baricich A, Grana E, Carda S, Santamato A, Molinari C, Cisari C, Invernizzi M. Heart Rate Variability modifications induced by high doses of incobotulinumtoxinA and onabotulinumtoxinA in hemiplegic chronic stroke patients: A single blind randomized controlled, crossover pilot study. Toxicon 2017; 138:145-150. [PMID: 28877510 DOI: 10.1016/j.toxicon.2017.08.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 08/28/2017] [Accepted: 08/30/2017] [Indexed: 11/29/2022]
Abstract
BACKGROUND Botulinum toxin type A is a valid and safe treatment for focal spasticity, with documented effects on both sympathetic and parasympathetic systems. Heart rate variability can provide detailed information about the control of the autonomic nervous system on cardiovascular activities. Previous studies in literature showed no significant changes in Heart Rate Variability with doses >600 U of incobotulinumtoxinA in chronic post stroke spastic patients; however, at present time, these results have not been confirmed with doses >600 U of onabotulinumtoxinA. AIM To evaluate changes in Heart Rate Variability induced by high doses (>600 U) of incobotulinumtoxinA or onabotulinumtoxinA in spastic stroke patients over a 1-year period. DESIGN single blind randomized controlled crossover study design. SETTING Rehabilitation Unit of the University Hospital in Novara. POPULATION 10 stroke survivors with spastic hemiplegia (Modified Ashworth Scale ≥ 2) were recruited and randomly divided in two groups (A and B). METHODS In the first part of the study, patients in Group A were injected with incobotulinumtoxinA while patients in Group B with onabotulinumtoxinA; after 6 months, a crossover intervention was performed. All patients were blinded to Botulinum toxin type A type, and performed an ECG registration in the 24 h before injection (t0) and 10 days after treatment (t1), both in the first and in the second part of the study. Functional status was evaluated with Barthel Index, Motricity Index and Functional Ambulation Category scores. RESULTS Heart Rate Variability analysis showed no significant changes after each Botulinum toxin type A injection in both groups at any evaluation time. Moreover, no statistically significant differences were found regarding each variable between the two groups. CONCLUSIONS Our data show that high doses (>600 U) of incobotulinumtoxinA and onabotulinumtoxinA do not influence the cardiovascular activity of the autonomic nervous system in chronic hemiplegic spastic stroke survivors.
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Affiliation(s)
- Alessio Baricich
- Physical and Rehabilitative Medicine, Department of Health Sciences, University of Eastern Piedmont "A. Avogadro", Novara, Italy; Department of Physical Medicine and Rehabilitation, University Hospital «Maggiore della Carità», V.le Piazza d'Armi 1, 28100, Novara, Italy
| | - Elisa Grana
- Neuropsychology and Neurorehabilitation Service, Department of Clinical Neuroscience, Lausanne University Hospital (CHUV), Av. Pierre-Decker 5, 1011, Lausanne, Switzerland
| | - Stefano Carda
- Neuropsychology and Neurorehabilitation Service, Department of Clinical Neuroscience, Lausanne University Hospital (CHUV), Av. Pierre-Decker 5, 1011, Lausanne, Switzerland
| | - Andrea Santamato
- Physical Medicine and Rehabilitation Section, "OORR" Hospital, University of Foggia, Foggia, Italy
| | - Claudio Molinari
- Human Physiology, Department of Translational Medicine, University of Eastern Piedmont "A. Avogadro", Novara, Italy
| | - Carlo Cisari
- Physical and Rehabilitative Medicine, Department of Health Sciences, University of Eastern Piedmont "A. Avogadro", Novara, Italy; Department of Physical Medicine and Rehabilitation, University Hospital «Maggiore della Carità», V.le Piazza d'Armi 1, 28100, Novara, Italy
| | - Marco Invernizzi
- Physical and Rehabilitative Medicine, Department of Health Sciences, University of Eastern Piedmont "A. Avogadro", Novara, Italy.
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IncobotulinumtoxinA for Aesthetic Indications: A Systematic Review of Prospective Comparative Trials. Dermatol Surg 2017; 43:959-966. [PMID: 28375973 DOI: 10.1097/dss.0000000000001076] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND IncobotulinumtoxinA is a botulinum toxin type A (BoNTA) indicated for temporary improvement in the appearance of upper facial lines with well-established efficacy and safety profiles. Whether incobotulinumtoxinA and other BoNTAs are equipotent is subject of debate. OBJECTIVE To compare the efficacy of incobotulinumtoxinA and other BoNTAs for aesthetic applications. MATERIALS AND METHODS PubMed and Embase were systematically searched for prospective clinical trials comparing incobotulinumtoxinA with onabotulinumtoxinA, abobotulinumtoxinA, or placebo for aesthetic applications. RESULTS Fifteen articles met the selection criteria. Two studies found that incobotulinumtoxinA was noninferior or equivalent to onabotulinumtoxinA for the treatment of glabellar frown lines (GFLs). Eight studies found no difference in efficacy between incobotulinumtoxinA and other BoNTAs. One study suggested differences in response rates at certain time points between incobotulinumtoxinA and onabotulinumtoxinA for GFLs, and one suggested differences for dynamic horizontal forehead lines but not for GFLs or lateral periorbital lines, but both had study design issues limiting the ability to draw conclusions. Finally, 3 placebo-controlled studies demonstrated the efficacy of incobotulinumtoxinA for treating GFLs and upper facial lines. CONCLUSION The weight of the evidence from comparative clinical trials indicates that incobotulinumtoxinA, onabotulinumtoxinA, and abobotulinumtoxinA have similar efficacy for aesthetic applications.
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Feng Y, Liu W, Pan L, Jiang C, Zhang C, Lu Y, Nie Z, Jin L. Comparison of neurotoxic potency between a novel chinbotulinumtoxinA with onabotulinumtoxinA, incobotulinumtoxinA and lanbotulinumtoxinA in rats. DRUG DESIGN DEVELOPMENT AND THERAPY 2017; 11:1927-1939. [PMID: 28721012 PMCID: PMC5500563 DOI: 10.2147/dddt.s138489] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Four botulinumtoxin type A (BoNT/A) products, onabotulinumtoxinA (A/Ona), incobotulinumtoxinA (A/Inco), lanbotulinumtoxinA (A/Lan) and chinbotulinumtoxinA (A/Chin), are applied in the present study, among which A/Chin is newly produced. We aimed to compare the neurotoxic potency of these toxins by the gauge of muscle strength reduction. Furthermore, potential molecular and cellular mechanisms were also explored. According to our data, muscle strengths in the four toxin groups were all significantly decreased after injection for 1 week. A/Chin achieved the most obvious reduction in muscle strength as compared to the other three products at the dose of 0.5 U. However, there was no difference between the four toxins when increased to 2 U. As the toxins wore off, muscle strength recovered to basal level 12 weeks postinjection. We further measured the expression levels of key factors involved in neuromuscular junction stabilization and muscle genesis. Our results showed that nicotinic acetylcholine receptor, myogenic regulatory factors and muscle-specific receptor tyrosine kinase were all significantly upregulated upon BoNT/A treatment. Consistent with the result of muscle strength, A/Chin had the most obvious induction of gene expression. Moreover, we also found local inflammation response following BoNT/A injection. Owing to lack of complexing proteins, both A/Inco and A/Chin stimulated relatively lighter inflammation compared to that of A/Ona and A/Lan groups. In conclusion, our study provided evidence for the efficacy of the novel A/Chin and its similar functional mode to that of A/Ona, A/Inco and A/Lan. In addition, A/Chin has superiority in inducing muscle paralysis and inflammation stimulation, which may indicate faster onset and longer duration of this novel A/Chin.
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Affiliation(s)
- Ya Feng
- Department of Neurology, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Wuchao Liu
- Department of Neurology, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Lizhen Pan
- Department of Neurology, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Cong Jiang
- Department of Neurology, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Chengxi Zhang
- Department of Neurology, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Yuxuan Lu
- Department of Neurology, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Zhiyu Nie
- Department of Neurology, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Lingjing Jin
- Department of Neurology, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
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Nestor M, Ablon G, Pickett A. Key Parameters for the Use of AbobotulinumtoxinA in Aesthetics: Onset and Duration. Aesthet Surg J 2017; 37:S20-S31. [PMID: 28388717 PMCID: PMC5434495 DOI: 10.1093/asj/sjw282] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Time to onset of response and duration of response are key measures of botulinum toxin efficacy that have a considerable influence on patient satisfaction with aesthetic treatment. However, there is no overall accepted definition of efficacy for aesthetic uses of botulinumtoxinA (BoNT-A). Mechanical methods of assessment do not lend themselves to clinical practice and clinicians rely instead on assessment scales such as the Frontalis Activity Measurement Standard, Frontalis Rating Scale, Wrinkle Severity Scale, and Subject Global Assessment Scale, but not all of these have been fully validated. Onset of activity is typically seen within 5 days of injection, but has also been recorded within 12 hours with abobotulinumtoxinA. Duration of effect is more variable, and is influenced by parameters such as muscle mass (including the effects of age and sex) and type of product used. Even when larger muscles are treated with higher doses of BoNT-A, the duration of effect is still shorter than that for smaller muscles. Muscle injection technique, including dilution of the toxin, the volume of solution injected, and the positioning of the injections, can also have an important influence on onset and duration of activity. Comparison of the efficacy of different forms of BoNT-A must be made with the full understanding that the dosing units are not equivalent. Range of equivalence studies for abobotulinumtoxinA (Azzalure; Ipsen Limited, Slough UK/Galderma, Lausanne CH/Dysport, Ipsen Biopharm Limited, Wrexham UK/Galderma LP, Fort Worth, TX) and onabotulinumtoxinA (Botox; Allergan, Parsippany, NJ) have been conducted, and results indicate that the number of units of abobotulinumtoxinA needs to be approximately twice as high as that of onabotulinumtoxinA to achieve the same effect. An appreciation of the potential influence of all of the parameters that influence onset and duration of activity of BoNT-A, along with a thorough understanding of the anatomy of the face and potency of doses, are essential to tailoring treatment to individual patient needs and expectations.
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Affiliation(s)
- Mark Nestor
- Voluntary Associate Professor, Department of Dermatology and Cutaneous Surgery, Department of Surgery, Division of Plastic Surgery, University of Miami Leonard Miller School of Medicine, Miami, FL, USA
| | - Glynis Ablon
- Associate Clinical Professor of Dermatology, University of California Los Angeles (UCLA), Los Angeles, CA, USA
| | - Andy Pickett
- Director and Founder of Toxin Science Limited, Wrexham, UK
- Adjunct Professor at the Botulinum Research Center, Institute of Advanced Sciences, Dartmouth, MA, USA
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Fishman LM, Wilkins AN, Rosner B. Electrophysiologically identified piriformis syndrome is successfully treated with incobotulinum toxin a and physical therapy. Muscle Nerve 2017; 56:258-263. [PMID: 27935076 DOI: 10.1002/mus.25504] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 10/20/2016] [Accepted: 11/25/2016] [Indexed: 11/10/2022]
Abstract
INTRODUCTION Piriformis syndrome is entrapment of the sciatic nerve by the piriformis muscle. METHODS In this article we describe a 56-person randomized, double-blind, controlled study involving physical therapy and incobotulinum toxin A or placebo. Inclusion criteria were 3-SD delay of posterior tibial (PT) or fibular (FN) H-reflexes on flexion, adduction, and internal rotation (FAIR) testing, and normal paraspinal electromyographic findings. Outcome measures included adverse side effects, visual analog scale (VAS) findings, and H-reflex delay on the FAIR test. RESULTS Mean intervention VAS score decreased significantly more compared with placebo at 2, 4, 6, 8, 10, and 12 weeks post-injection (P < 0.0001). FAIR test scores for PT, but not FN, decreased significantly more compared with placebo at 2, 4, 6, and 8 weeks post-injection (PT: P = 0.038, 0.003, 0.003, and 0.046). Adverse effects were minimal. VAS slope and PT FAIR test results varied significantly (P < 0.0001). CONCLUSION Incobotulinum toxin A chemodenervation may be useful for treating piriformis syndrome as identified by the FAIR test. Muscle Nerve 56: 258-263, 2017.
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Affiliation(s)
- Loren M Fishman
- Department of Rehabilitation and Regenerative Medicine, Columbia University College of Physicians and Surgeons, 133 East 58th Street, New York, New York, 10022, USA
| | - Allen N Wilkins
- Department of Rehabilitation and Regenerative Medicine, Columbia University College of Physicians and Surgeons, 133 East 58th Street, New York, New York, 10022, USA
| | - Bernard Rosner
- Department of Biostatistics, Harvard School of Public Health, Boston, Massachusetts, USA
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Wanitphakdeedecha R, Ungaksornpairote C, Kaewkes A, Sathaworawong A, Lektrakul N, Manuskiatti W. The efficacy of two formulations of botulinum toxin type A for masseter reduction: a split-face comparison study. J DERMATOL TREAT 2016; 28:443-446. [DOI: 10.1080/09546634.2016.1263382] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | - Chanida Ungaksornpairote
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Arisa Kaewkes
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Angkana Sathaworawong
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Nittaya Lektrakul
- Department of Radiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Woraphong Manuskiatti
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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Abstract
Botulinum toxin type A (BTA) can be used for facial aesthetics. The 3 currently available BTA types include onabotulinumtoxinA (Botox; Botox Cosmetic, Allergan, Irvine, CA), abobotulinumtoxinA (Dysport; Ipsen, Ltd, Berkshire, UK), and incobotulinumtoxinA (Xeomin; Merz Pharmaceuticals, Frankfurt, Germany). The mechanism of action and clinical uses for treatment of dynamic lines of the forehead, brow, glabella, lateral orbit, nose, and lips are presented, as well as treatment of masseter hypertrophy, platysmal bands, and improvements of the perioral region. Specific BTA injection sites and suggested doses are presented.
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Efficacy and Safety of IncobotulinumtoxinA in the Treatment of Upper Facial Lines: Results From a Randomized, Double-Blind, Placebo-Controlled, Phase III Study. Dermatol Surg 2015; 41:1149-57. [PMID: 26359996 DOI: 10.1097/dss.0000000000000450] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Treating upper facial lines (UFL)-a combination of glabellar frown lines (GFL), horizontal forehead lines (HFL), and lateral periorbital lines (LPL)-is a common aesthetic practice. OBJECTIVE To provide the first placebo-controlled evidence of the efficacy and safety of incobotulinumtoxinA for UFL. METHODS Healthy subjects (≥18 years) with moderate-to-severe GFL, HFL, and LPL on the Merz Aesthetics Scales (MAS) at maximum contraction were randomized to incobotulinumtoxinA or placebo. For incobotulinumtoxinA, 54 to 64 U were administered (GFL, 20 U; HFL, 10-20 U; LPL, 24 U). Investigator-assessed MAS scores were evaluated for each area at maximum contraction on Day 30, both separately (responder = score of "none" [0] or "mild" [1]) and combined (UFL; sum score ≤3). Adverse events were recorded until 120 ± 7 days after treatment. RESULTS Overall, 156 subjects were treated (incobotulinumtoxinA: 105; placebo: 51). On Day 30 at maximum contraction, a significant (p ≤ .0001) effect of incobotulinumtoxinA versus placebo for GFL (84.5% vs 0.0%, respectively), HFL (70.9% vs 2.1%), LPL (64.1% vs 2.1%), and UFL combination (55.3% vs 0.0%) was demonstrated for investigator-assessed "none" or "mild" scores. Two cases of mild eyelid ptosis occurred with incobotulinumtoxinA. CONCLUSION IncobotulinumtoxinA demonstrated significant efficacy in treating GFL, HFL, and LPL separately and combined, as well as a good safety profile.
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31
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Lolis M, Dunbar SW, Goldberg DJ, Hansen TJ, MacFarlane DF. Patient safety in procedural dermatology. J Am Acad Dermatol 2015; 73:15-24; quiz 25-6. [DOI: 10.1016/j.jaad.2014.11.036] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Revised: 11/21/2014] [Accepted: 11/24/2014] [Indexed: 10/23/2022]
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McClean M, Silverberg JI. Statistical reporting in randomized controlled trials from the dermatology literature: a review of 44 dermatology journals. Br J Dermatol 2015; 173:172-83. [PMID: 25989239 DOI: 10.1111/bjd.13907] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/03/2015] [Indexed: 12/14/2022]
Abstract
BACKGROUND The validity of randomized controlled trials (RCTs) is determined by several statistical factors. OBJECTIVES To determine the level of recent statistical reporting in RCTs from the dermatology literature. METHODS We searched MEDLINE for all RCTs published between 1 May 2013 and 1 May 2014 in 44 dermatology journals. RESULTS Two hundred and ten articles were screened, of which 181 RCTs from 27 journals were reviewed. Primary study outcomes were met in 122 (67.4%) studies. Sample size calculations and beta values were reported in 52 (28.7%) and 48 (26.5%) studies, respectively, and nonsignificant findings were supported in only 31 (17.1%). Alpha values were reported in 131 (72.4%) of studies with 45 (24.9%) having two-sided P-values, although adjustment for multiple statistical tests was performed in only 16 (9.9% of studies with ≥ two statistical tests performed). Sample size calculations were performed based on a single outcome in 44 (86.3%) and multiple outcomes in six (11.8%) studies. However, among studies that were powered for a single primary outcome, 20 (45.5%) made conclusions based on multiple primary outcomes. Twenty-one (41.2%) studies relied on secondary/unspecified outcomes. There were no differences for primary outcome being met (Chi-square, P = 0.29), sample size calculations (P ≥ 0.55), beta values (P = 0.89), alpha values (P = 0.65), correction for multiple statistical testing (P = 0.59), two-sided alpha (P = 0.64), support of nonsignificant findings (Fisher's exact, P = 0.23) based on the journal's impact factor. CONCLUSIONS Levels of statistical reporting are low in RCTs from the dermatology literature. Future work is needed to improve these levels of reporting.
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Affiliation(s)
- M McClean
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Suite 1600, 676 N. St Clair St, Chicago, IL, 60611, U.S.A
| | - J I Silverberg
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Suite 1600, 676 N. St Clair St, Chicago, IL, 60611, U.S.A.,Department of Preventive Medicine and Medical Social Sciences, Northwestern University Feinberg School of Medicine, Suite 1600, 676 N. St Clair St, Chicago, IL, 60611, U.S.A
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Yutskovskaya Y, Gubanova E, Khrustaleva I, Atamanov V, Saybel A, Parsagashvili E, Dmitrieva I, Sanchez E, Lapatina N, Korolkova T, Saromytskaya A, Goltsova E, Satardinova E. IncobotulinumtoxinA in aesthetics: Russian multidisciplinary expert consensus recommendations. Clin Cosmet Investig Dermatol 2015; 8:297-306. [PMID: 26089695 PMCID: PMC4467658 DOI: 10.2147/ccid.s72301] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Although there are various international consensus recommendations on the use of botulinum neurotoxin type A (BoNT/A) in facial aesthetics, there are no global or Russian guidelines on the optimal dose of incobotulinumtoxinA, free from complexing proteins, within specific aesthetic indications. This article reports the outcomes of two expert consensus meetings, conducted to review and analyze efficacy and tolerability data for incobotulinumtoxinA in various facial aesthetic indications and to give expert consensus recommendations to ensure best clinical practice among Russian clinicians. METHODS Thirteen dermatology and/or plastic surgery experts attended meetings held in Paris, France (November 2013), and Moscow, Russia (March 2014). The expert group reviewed and analyzed the existing evidence, consensus recommendations, and Russian experts' extensive practical experience of incobotulinumtoxinA in aesthetics to reach consensus on optimal doses, potential dose adjustments, and injection sites of incobotulinumtoxinA for facial aesthetics. RESULTS All experts developed guidance on the optimal doses for incobotulinumtoxinA treatment of different regions of the upper and lower face. The expert panel agreed that there are no differences in the efficacy and duration of the effect between the four BoNT/As that are commercially available for facial aesthetic indications in Russia and that, when administered correctly, all BoNT/As can achieve optimal results. Experts also agreed that nonresponse to BoNT/A can be caused by neutralizing antibodies. CONCLUSION On the basis of the scientific and clinical evidence available for incobotulinumtoxinA, coupled with the extensive clinical experience of the consensus group, experts recommended the optimal doses of incobotulinumtoxinA effective for treatment of wrinkles of the upper and lower face to achieve the expected aesthetic outcome. These first Russian guidelines on the optimal use of incobotulinumtoxinA for augmentation of glabellar lines, periorbital wrinkles, forehead lines, bunny lines, perioral wrinkles, depressor anguli oris, mentalis, masseters and platysmal bands, and performing the Nefertiti lift, are presented here.
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Affiliation(s)
- Yana Yutskovskaya
- Department of Dermatovenereology and Cosmetology, Pacific State Medical University, Vladivostock, Russia
| | - Elena Gubanova
- Department of Skin and Venereal Diseases, Postgraduate Medical Institute, Moscow National University of Food Production, Moscow, Russia
| | - Irina Khrustaleva
- Department of Plastic Surgery, IP Pavlov Medical State University, St Petersburg, Russia
| | - Vasiliy Atamanov
- Department of Reconstructive and Plastic Surgery, SN Fedorova, Federal State Institution, Novosibirsk, Russia
| | | | | | | | - Elena Sanchez
- Eklan Medical Center of Cosmetological Correction, Moscow, Russia
| | - Natalia Lapatina
- Clinic of Aesthetic Medicine and Plastic Surgery, Moscow, Russia
| | - Tatiana Korolkova
- Department of Cosmetology, II Mechnikov North-Western State Medical University, St Petersburg, Russia
| | - Alena Saromytskaya
- Plastic Surgery Clinic, Center of Aesthetic Medicine and Beauty Cosmetology, Tyumen, Russia
| | | | - Elmira Satardinova
- Botulinum Toxin Therapy Department, Diagnostic Center of the Irkutsk State Medical Academy of Postgraduate Education, Irkutsk, Russia
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Pavicic T, Prager W, Klöppel M, Ravichandran S, Galatoire O. IncobotulinumtoxinA use in aesthetic indications in daily practice: a European multicenter, noninterventional, retrospective study. Clin Cosmet Investig Dermatol 2015; 8:135-42. [PMID: 25834463 PMCID: PMC4358057 DOI: 10.2147/ccid.s74519] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Purpose To characterize utilization patterns and treatment satisfaction with incobotulinumtoxinA for aesthetic indications and assess adherence to the Summary of Product Characteristics. Patients and methods Data were collected retrospectively from physicians in Germany, France, and the UK regarding patients (n=638) treated with incobotulinumtoxinA for aesthetic indications. Data on indication, treatment interval, dose injected, physician and patient satisfaction, and adverse drug reactions were recorded according to routine daily practice. Results Most patients (76.0%) received incobotulinumtoxinA for glabellar frown lines (GFL) and were given doses of ≤20 U. The majority of treatment intervals were 5 months or longer. Overall, 64.1% of patients were treated for off-label indications, sometimes in combination with treatment for GFL. The most frequently treated off-label indications were horizontal forehead lines (38.6%) and/or crow’s feet (CF; 31.7%); for CF, >95% of injected doses were ≤24 U. In Germany, a smaller proportion of patients were given incobotulinumtoxinA treatment for CF (27.6%), compared with France (40.4%) and the UK (33.2%), although country-specific differences were less prominent when treatment cycle data for CF were examined. Treatment satisfaction among physicians and patients (overall, and for GFL specifically) was very high, with excellent tolerability and only one mild adverse drug reaction reported. Conclusion In daily practice, incobotulinumtoxinA is mainly used for GFL; however, its use for CF and horizontal forehead lines (often in combination with GFL) is relatively common. Treatment satisfaction across aesthetic indications is high, and incobotulinumtoxinA is well tolerated, with time intervals of 5 months or longer between injections in the majority of cases. When considering factors such as dose and treatment interval, adherence to the Summary of Product Characteristics when treating GFL in daily practice is good. These results support previous reports that incobotulinumtoxinA is an effective treatment for GFL, with an excellent safety profile. Furthermore, incobotulinumtoxinA may display efficacy and tolerability in other indications.
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Affiliation(s)
| | - Welf Prager
- Dr. Prager & Partner, Derma-Hamburg, Hamburg, Germany
| | - Markus Klöppel
- Private Practice Clinic of Esthetic Surgery, MediCenter Munich-Solln, Munich, Germany
| | | | - Olivier Galatoire
- Department of Ophthalmology, Adolphe Rothschild Ophthalmological Foundation, Paris, France
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A Prospective Rater- and Subject-Blinded Study Comparing the Efficacy of IncobotulinumtoxinA and OnabotulinumtoxinA to Treat Crow's Feet. Dermatol Surg 2015; 41 Suppl 1:S39-46. [DOI: 10.1097/dss.0000000000000262] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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36
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Patient-Reported Outcomes After IncobotulinumtoxinA Treatment for Upper Facial Wrinkles. Dermatol Surg 2015; 41 Suppl 1:S29-38. [DOI: 10.1097/dss.0000000000000274] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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