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Treatment of nevus of Ota with the Q-switched alexandrite laser

✍ Scribed by Gerardo A. Moreno-Arias; Alejandro Camps-Fresneda

Publisher: John Wiley and Sons
Year: 2001
Tongue: English
Weight: 286 KB
Volume: 28
Category: Article
ISSN: 0196-8092
DOI: 10.1002/lsm.1073

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Background and Objective

Q‐switched laser systems have been shown to be useful for removal of nevus of Ota, a pigmented lesion on the face. The purpose of this study was to evaluate the efficacy of Q‐switched alexandrite laser in the treatment of nevus of Ota in 13 patients.

Study Design/Materials and Methods

A spot test was made at 6.0, 7.0, and 8.0 J/cm^2^ energy fluence, and the best energy fluence was selected after a 2‐month postoperative evaluation. Q‐switched alexandrite laser with a mean fluence of 7.290.46 J/cm^2^ was used at 8‐week intervals. Total treatment ranged from 1 to 15 sessions (mean 7.1 ± 5.1 sessions). The single shot technique was used.

Results

More than 75% lightening was achieved in seven patients, between 51% and 75% in three, less than 50% in one, and less than 25% in one. In two patients with excellent clearance, a very light gray macula in the lower eyelid persisted after 8 and 14 treatment sessions, respectively. Mild transient hypopigmentation that subsided spontaneously after 2 months was observed in one patient. No repigmentation was seen.

Conclusions

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