Objectives: This presentation aimed to address the effectiveness of botulinumtoxin-A (BoNT-A) for the management of melasma.
Introduction: Melasma is a common hyperpigmentary condition especially in individuals with dark-complexioned skin. The most well-known aggravating factor is ultraviolet (UV) exposure. Previous studies have been shown a beneficial effect of BoNT-A for the prevention and treatment of UVB-induced hyperpigmentation.
Materials / method: A pilot study was conducted in 14 patients with melasma. One side of each patient's face was treated with triple combination cream (4% hydroquinone, 0.05% tretinoin, 0.01% fluocinolone acetonide, TCC) for 12 weeks (monotherapy group), while the other side was treated with combined intradermal BoNT-A (2 sessions, baseline and week 12) and 12-week TCC application (combined group). Evaluations were performed at 2, 4, 8, 12, 16, 20, and 24 weeks with Visia®, Antera 3D®, Colorimeter®, MASI score on malar area (MASIm), GAIS score, and patient satisfaction.
Results: Fourteen subjects completed the study. A greater reduction of MASIm was observed in combined group when compared to the monotherapy group at 4 weeks (27.94 % vs 12.65 % reduction). Melasma recurrence was observed in monotherapy group after TCC discontinuation. At the end of the study, a higher patients satisfaction score was observed in the combined group when compared to monotherapy group. No serious adverse events were reported.
Conclusion: A combination of intradermal BONT-A injection and TCC demonstrated a beneficial effect in melasma treatment and prevention of melasma recurrence than TCC monotherapy.
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请注明名称(个人,公司,学会等等): Botulinum toxin was supported by Merz Aesthetics. The supporter has no role in study design and conducting the study.
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