title: Treatment technics in argon laser therapy.
abstract: This study compares 50 msec and 200 msec laser pulses with continuous application of the argon laser to test sites within port-wine stains (PWS). It also assesses the effects of different irradiance, energy fluence, and spatial average energy fluence on PWS lightening. Test areas responded with diminution of lesional color and lack of scarring as well as or better than to laser treatment by continuous exposure. Despite differences in irradiance and energy fluence for each laser impulse, the total energy delivered to all test areas was similar. There appeared to be no greater specificity for destruction of vascular structures conferred by using the short, 50-msec pulse duration. Operation of the argon laser with continuous irradiation leads to good clinical results, is less tiring and easier for the laser surgeon, allows larger areas to be treated more quickly, and often produces less mottling and more uniform PWS lightening than does pulsed irradiation.
mesh_terms: D000293:Adolescent; D000328:Adult; D001128:Argon; D005260:Female; D006391:Hemangioma / Q000601:surgery*; D006801:Humans; D053685:Laser Therapy; D007834:Lasers / Q000379:methods*; D008297:Male; D008875:Middle Aged; D012878:Skin Neoplasms / Q000601:surgery*
chemical_list: D001128:Argon