Q-Switched Nd:YAG Laser Therapy of Acquired Bilateral Nevus of Ota-like Macules.
- Author:
Woo Jin LEE
1
;
Seung Seog HAN
;
Sung Eun CHANG
;
Mi Woo LEE
;
Jee Ho CHOI
;
Kee Chan MOON
;
Jai Kyoung KOH
Author Information
- Publication Type:Original Article
- Keywords: Acquired bilateral nevus of Ota-like macules; Q-switched Nd:YAG laser
- MeSH: Cicatrix; Cicatrix, Hypertrophic; Erythema; Humans; Hyperpigmentation; Hypopigmentation; Laser Therapy; Nevus; Nevus of Ota
- From:Annals of Dermatology 2009;21(3):255-260
- CountryRepublic of Korea
- Language:English
- Abstract: BACKGROUND: Acquired bilateral nevus of Ota-like macules (ABNOM) is a dermal pigmented lesion common in individuals of Oriental origin. The Q-switched Nd:YAG laser (QSNYL) has been used successfully to treat a variety of benign, dermal, pigmented lesions, including nevus of Ota lesions. The similarity between ABNOM and nevus of Ota suggested that QSNYL may also be effective in the former. OBJECTIVE: To determine the efficacy and side-effect profiles of QSNYL treatment of ABNOM in Korean patients. METHODS: Of 42 Korean patients with ABNOM, 29 were treated with QSNYL (1,064 nm, 3 mm spot size, fluence 8~9.5 J/cm2), for up to 10 sessions each. Clinical photographs were taken before and after treatment. Lesion clearance was graded and complications such as hyperpigmentation, scarring, hypopigmentation, and erythema were assessed. RESULTS: Of the 29 treated patients, 19 (66%) showed excellent or good results. Of the patients who were treated more than 3 times, 76% showed good to excellent results. Two patients experienced post-laser hyperpigmentation (PLH), which persisted for more than one month, but no patient experienced persistent erythema or hypertrophic scarring. CONCLUSION: QSNYL is safe and effective in the treatment of ABNOM in Korean patients. Short-interval repetitive treatment is especially useful in improving therapeutic results and reducing PLH.
