Background: TrUeatments of port-wine stains with conventional pulsed dye laser yield inconsistent results. Objective: We evaluated the efficacy and safety of the longer pulse duration 595-nm dye laser. Methods: Sixty-...Background: TrUeatments of port-wine stains with conventional pulsed dye laser yield inconsistent results. Objective: We evaluated the efficacy and safety of the longer pulse duration 595-nm dye laser. Methods: Sixty-six adult Japanese patients were enrolled in this prospective study. The laser treatment with a cooling device was repeated 4 times at 8-week intervals with a consistent setting of 10-ms pulse duration and an energy fluence of 12 J/cm2, using 7-mm spot size. Results: Improvement of port-wine stains was observed after multiple treatments, and 67% of the patients achieved either good or excellent response after the fourth treatment. Transient purpura, edema, or both were noted immediately after each treatment (76% -79% and 58% -67% , respectively). Hyperpigmentation (8% -17% ) and hypopigmentation (6% -14% ) were also mild and their occurrence did not increase by repeating treatments. Limitations: Eighty five percent of the patients were classified as having Fitzpatrick skin type IV. Conclusion: Our study indicated that the 595-nm dye laser with 10-ms pulse duration may be effective and well tolerated in the treatment of port-wine stains in adult Asians.展开更多
文摘Background: TrUeatments of port-wine stains with conventional pulsed dye laser yield inconsistent results. Objective: We evaluated the efficacy and safety of the longer pulse duration 595-nm dye laser. Methods: Sixty-six adult Japanese patients were enrolled in this prospective study. The laser treatment with a cooling device was repeated 4 times at 8-week intervals with a consistent setting of 10-ms pulse duration and an energy fluence of 12 J/cm2, using 7-mm spot size. Results: Improvement of port-wine stains was observed after multiple treatments, and 67% of the patients achieved either good or excellent response after the fourth treatment. Transient purpura, edema, or both were noted immediately after each treatment (76% -79% and 58% -67% , respectively). Hyperpigmentation (8% -17% ) and hypopigmentation (6% -14% ) were also mild and their occurrence did not increase by repeating treatments. Limitations: Eighty five percent of the patients were classified as having Fitzpatrick skin type IV. Conclusion: Our study indicated that the 595-nm dye laser with 10-ms pulse duration may be effective and well tolerated in the treatment of port-wine stains in adult Asians.
