Long-pulsed neodymium:yttrium-aluminum-garnet laser treatment for port-wine stains - 21/08/11
Boston, Massachusetts; Quezon City, Philippines; and Malaga, Spain
Abstract |
Objective |
Laser treatment of port-wine stain (PWS) might be improved using a deeply penetrating wavelength.
Methods |
PWSs in 17 patients were treated 3 times with a 595-nm pulsed dye laser (PDL) and a 1064-nm neodymium:yttrium-aluminum-garnet (Nd:YAG) laser. Fluences of 1.0, 0.8, and 0.6 times the minimum purpura dose (MPD) were used for Nd:YAG laser. Posttreatment biopsy specimens were taken. Blind assessment and quantitative analysis of PWS clearing were performed from digital photographs.
Results |
MPD for Nd:YAG laser varied widely, from 40 to 250 J/cm2. Purpura lasted longer after PDL. Treatment achieved similar 50% to 75% clearing with both PDL and Nd:YAG laser at 1 MPD. Nd:YAG caused greater perivascular and epidermal injury. Scarring occurred in the only patient treated with a Nd:YAG fluence greater than 1 MPD. Patients preferred Nd:YAG laser because of their faster recovery.
Conclusion |
Nd:YAG laser used at MPD is as effective as PDL for treating PWS. Nd:YAG laser fluences higher than MPD may cause scarring.
Le texte complet de cet article est disponible en PDF.Abbreviations used : B, G, met-Hb, MPD, Nd:YAG, OD, PDL, PWS, R, VAS
Plan
Supported by a Massachusetts General Hospital grant. Conflicts of interest: None identified. Presented at the 23rd Annual Meeting of the American Society for Laser Medicine and Surgery, Anaheim, California, April 9-13, 2003. |
Vol 52 - N° 3
P. 480-490 - mars 2005 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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