Chonnam Med J.  2002 Mar;38(1):63-67.

Therapeutic Effect of Epidermal Pigmented Lesions with the Q-switched Nd:YAG Laser

• Lee JB
• Yun SJ
• Lee SC
• Won YH

Abstract

Selective removal of the pigment by lasers is becoming increasingly popular. The frequency-doubled Q-switched neodymium: yttrium-aluminum-garnet laser (QSNd:YAG) (1064 and 532 nm) has been shown to be effective in the treatment of benign epidermal pigmented lesions including lentigines, and Becker's nevi, as well as dermal pigmented lesions. The purpose of this study is to evaluate the efficacy and side effect profile of the frequecy-doubled QSNd: YAG laser in the removal of epidermal pigmented lesions. Thirty patients with pigmented lesions were treated with the frequency-doubled QSNd:YAG laser (532 nm, 2 mm spot size). The clinical response was evaluated comparing pretreatment and follow-up photographs. Therapeutic responses were variable according to lesions, but in most of cases good responses were obtained. Transient mild erythema, hyperpigmentation and hypopigmentatiom were noted in three patients, but they resolved spontaneously within 3 months. No other textural changes, scarring, or other side effects were noted. The frequecy-doubled QSNd:YAG laser is a safe and effective method for the treatment of a number of benign epidermal pigmented lesions.

Keyword

Epidermal pigmented lesions; Q-switched Nd:YAG laser

MeSH Terms

Cicatrix
Erythema
Follow-Up Studies
Humans
Hyperpigmentation
Lasers, Solid-State
Lentigo
Neodymium
Nevus
Neodymium