Treatment of venous lake with multiwavelength 595 and 1064nm lasers in Asian Fitzpatrick skin type IV patients.

Abstract

Multiwavelength lasers are reportedly useful for treating venous lake (VL) in Caucasian patients. However, the same parameters may not be safe for Asian patients with Fitzpatrick skin type (FST) IV. Report experience with using multiwavelength laser for VL treatment in Asian patients with FST IV. Seventeen episodes of VL in 15 Chinese patients with FST IV were treated. 595-nm pulsed dye laser (PDL) followed by 1064-nm neodymium-doped yttrium aluminum garnet (Nd:YAG) laser was administered. The treatment was performed with 7-mm spot size at 7-11.5J/cm2 , 2-10ms with PDL, followed with Nd:YAG at 35-40J/cm2 , 15-40ms. The laser treatment was performed with a single pass without overlap. Complete resolution was observed in 14 lesions after 1-2 treatment sessions, with 10ms duration of PDL. The remaining three patients achieved 80%-90% resolution after 1-3 treatment sessions, with 2ms duration of PDL. Only one case exhibited recurrence after 1year. Multiwavelength laser treatment for VL is highly effective and safe in Asians, although a much lower fluence of Nd:YAG is used, as compared to that used in Caucasians in the literature. Moreover, an appropriate PDL pulse duration (10ms) ensures better outcomes.