High-Energy 595 nm Pulsed Dye Laser Improves Refractory Port-Wine Stains
- 28 June 2008
- journal article
- research article
- Published by Ovid Technologies (Wolters Kluwer Health) in Dermatologic Surgery
- Vol. 32 (1), 26-33
- https://doi.org/10.1111/1524-4725.2006.32003
Abstract
Port-wine stains respond quite well to 585 nm pulsed dye laser treatment, but often clearance is not complete. We investigated a prototype, a high-energy 595 nm pulsed dye laser capable of delivering up to 9.5 J/cm2 using a 10 mm circular spot, with a 1.5 ms pulse duration. This study was undertaken to determine if the high-energy, 595 nm, variable-pulse duration pulsed dye laser could improve port-wine stains that had become refractory to conventional treatment. Twenty patients were entered into the study and treated with the high-energy, 595 nm, variable-pulse duration pulsed dye laser using fluences ranging from 7.5 to 9.5 J/cm2, a 1.5 ms pulse duration, and a 10 mm spot size. Average improvement was rated as 40% prior to the initiation of the study after an average of 8.8 treatments at an average energy of 7.9 J/cm2 with the 585 nm pulsed dye laser and 76% following an average of 3.1 treatments with the high-energy 595 nm pulsed dye laser using an average fluence of 7.9 J/cm2. Dermal spectrometer erythema measurements improved from 2.2-fold that of normal skin to 1.5-fold that of unaffected skin. The high-energy 595 nm pulsed dye laser improves port-wine stains that have become refractory to the conventional 585 nm pulsed dye laser.Keywords
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