Beneficial effects of early treatment of nevus of Ota with low-fluence 1,064-nm Q-switched Nd:YAG laser.

Abstract

BACKGROUND:

Childhood nevus of Ota is likely to be more superficial than the adult nevus, therefore early laser treatment of nevus of Ota might have some beneficial effects in children.

OBJECTIVE:

To evaluate the beneficial effects of early treatment of nevus of Ota with a low-fluence 1,064-nm Q-switched neodymium-doped yttrium aluminum garnet (Nd:YAG) laser.

MATERIALS AND METHODS:

The authors performed a retrospective study of 31 Korean patients (Fitzpatrick skin Type IV) with nevus of Ota. The patients received a series of 6 to 32 treatment sessions at 2- to 3-week intervals with a Q-switched Nd:YAG laser at settings of 7- or 8-mm spot, 1.9 to 5.0 J/cm2 mean fluence.

RESULTS:

The mean fluence was less in patients younger than 10 years (2.2 ± 0.3 J/cm2) than in those older than 10 years (2.8 ± 0.8 J/cm2) (p = .006). Patients who started their first treatment earlier required fewer treatment sessions to reach moderate, marked, and near total improvement (p < .05). By starting treatment early, low mean fluence was required to reach the end point in each session (p < .001). Post-treatment hyperpigmentation was observed in 1 patient.

CONCLUSION:

This treatment was clinically effective and safe for early nevus of Ota using a low-fluence Q-switched Nd:YAG laser.

• Authors: Hyun-Min Seo, Chong-Won Choi, Won-Serk Kim
• Journal: Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.] (Dermatol Surg) Vol. 41 Issue 1 Pg. 142-8 (Jan 2015) ISSN: 1524-4725 [Electronic] United States
• PMID: 25485806 (Publication Type: Journal Article)

Topics

• Adolescent
• Adult
• Child
• Child, Preschool
• Facial Neoplasms (surgery)
• Female
• Humans
• Infant
• Lasers, Solid-State (adverse effects, therapeutic use)
• Male
• Middle Aged
• Nevus of Ota (surgery)
• Retrospective Studies
• Secondary Prevention
• Skin Neoplasms (surgery)
• Time Factors
• Treatment Outcome
• Young Adult