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KMID : 0380319920500000173
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Journal of Korean Research Institute for Better Living
1992 Volume.50 No. 0 p.173 ~ p.181
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A Study of Flashlamp-Pumped Pulsed Dye Laser for Portwine Stains in Children
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Abstract
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Portwine stain(pws) is a congenital vascular malformation that occurs primarily on the face and neck, affecting approximately 0.3％ to 0.5％ of newborns.
The major indication for therapy in most patients, regardless of age, is the psychosocial burden due to the portwine stain.
Purpose of this study is to evaluate safety and efficacy of flashlamp-pumped pulsed dye laser for pws in children.
Seventy-eight children, 5months to 15years of age, with portwine stains were treated with the flashlamp-pumped pulsed dye laser with an emission wavelength of 585nm, a pulse duration of 450 microseconds and 5mm spot size. More than 75％ lightening of their lesion was achieved with an average of 5.9 treatments(±2.50) in 28 patients(35.8％ of all patients). Children less than five years old required fewer sessions(mean±SD, 4.63±1.71) than older children(7.15±2.33 : P＜0.05). Portwine stain lesion is found more frequently on the left side of the face.
There was no evidence of depressed scars, atrophy and hyperpigmentation in the treated areas. The only side effect was transient hypopigmentation which occurred in 5 patients(6.4％), indicating the relative safety of this treatment modality.
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