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- Title
Results and tissue healing after copper-vapour laser (at 578 nm) treatment of port wine stains and facial telangiectasias.
- Authors
Neumann, R. A.; Leonhartsberger, H.; Böhler-Sommeregger, K.; Knobler, R.; Kokoschka, E. M.; Hönigsmann, H.
- Abstract
Twenty-four patients with port wine stains (PWS), and 33 patients with facial telangiectasias were treated with a copper-vapour laser (CVL) operating at 578 nm. Good to excellent results were obtained in 52% of PWS and 69% of Facial telangiectasias. Enzyme histochemistry revealed vessel-selective damage with energy densities up to 12 J/cm2, but a non-specific coagulation necrosis with higher tluences ( ⩾15 J/cm2) With vessel-selective lluenccs only moderate blanching was obtained in two PWS. Alt other evaluated patients were treated using nun-selective energy densities. Tissue healing was comparable With that after argon laser treatment. The theoretically correct wavelength ( 578 nm) alone appeared to be no guarantee of vessel-selective damage. The laser employed lacked adequate power (only 1.3 W maximum) to transmit sufficient energy into the tissues in a short exposure time. However, the clinical results contrim the value of the CVL in the treatment of superficial cutaneous angiodysplasias.
- Subjects
TELANGIECTASIA; VASODILATION; DERMATOLOGY; HISTOCHEMISTRY; ENZYMES; VASCULAR diseases
- Publication
British Journal of Dermatology, 1993, Vol 128, Issue 3, p306
- ISSN
0007-0963
- Publication type
Article
- DOI
10.1111/j.1365-2133.1993.tb00176.x