著者

岩崎 泰政

出版者

特定非営利活動法人 日本レーザー医学会

雑誌

日本レーザー医学会誌 (ISSN:02886200)

巻号頁・発行日

vol.18, no.Supplement, pp.97-100, 1997 (Released:2012-09-24)

参考文献数

8

---

Selective photothermolysis with a long-pulse flashlamp dye laser with 585 nm is becoming widely accepted as a treatment for cutaneous vascular lesions because of high efficacy with a very low risk of scarring. The light of dye laser penetrated into 1,400 μAm depth of the human skin and induces selective intravascular and perivascular coagulation necrosis. However, the numbers and diameters of blood vessels were significantly decreased only in tissues down to a depth of 600 μm 3 months after the laser irradiation. Fifty two out of 550 patients (9.5%) with port-wine stains (PWS) showed an excellent clinical improvement after single treatment and up to 4 times additional irradiation further improved clinical responses in as much as 115 patients with excellent improvement. The degrees of clinical responses are dependent on histological type, age, anatomic location and color of PWS lesions. Treatments of strawberry mark are usually begun in a thin flat stage or at initial presentation with some success especially for their superficial lesions. However, they hardly affect the size of tumor and often leave atrophic and redundant skin surface with scarring. Finally practical problems in dye laser treatment of hemangioma were discussed.