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KMID : 1037220180240010020
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Archives of Aesthetic Plastic Surgery
2018 Volume.24 No. 1 p.20 ~ p.25
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The Efficacy of a Q-Switched 694-nm Ruby Fractional Laser for Treating Acquired Bilateral Nevus of Ota-Like Macules
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Lee Sun-Jae
Nam Seung-Min
Cha Han-Gyu
Park Eun-Soo
Kim Yong-Bae
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Abstract
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Background: Acquired bilateral nevus of Ota-like macules (ABNOM) are a common form of hyperpigmentation in Asian populations, characterized by brownish-blue or slate-gray pigmentation in the bilateral malar regions. The purpose of this study was to evaluate the efficacy and complications of a Q-switched (QS) fractional ruby laser in the treatment of ABNOM.
Methods: Forty-four patients with ABNOM treated with a QS fractional ruby laser from January 2014 to February 2016 were enrolled in this study. Patients received up to 10 treatment sessions, at intervals ranging from 3 to 4 weeks. An automatic skin diagnosis system was used before and after laser treatment to evaluate the efficacy of the laser treatment. To evaluate the complications of the laser treatment, a retrospective chart review was conducted.
Results: Forty-one patients were female, and 3 were male. The mean age of the patients was 47.2 years, and the mean follow-up period was 14 months. The median skin pigmentation score was 5 (interquartile range [IQR], 5?6) before laser treatment and 3 (IQR, 3?4) after laser treatment. A statistically significant difference (P<0.01) was found in the skin pigmentation score before and after laser treatment.
Conclusions: This study suggests that, although multiple sessions are required, QS ruby fractional lasers can be considered an effective and less invasive form of treatment of ABNOM.
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KEYWORD
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ABNOM, Laser therapy, Nevus of Ota, Q-Switched laser, Ruby laser
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