title: [Comparative research on mixed and 488 nm argon laser PDT for port wine stain].
abstract: OBJECTIVE
  In order to search a safer argon laser photodynamic method, this study used 488 nm wavelength and common mixed spectrum argon laser PDT for treating Port Wine Stain. The therapeutic effects and side effect were compared.
  
  
  METHODS
  Fifty two cases of PWS were divided into two groups randomly. Argon laser PDT by two ways of laser irradiation were used.
  
  
  RESULTS
  Our data revealed 19.23% cure rate in 488 nm laser PDT group, while that of mixed wavelength laser group was 11.54%. There was no significant difference in the two groups. Also the effective rate of 488 nm laser group was 92.31% and that of mixed group was 88.46%. But the difference was not significant statistically. Side effect occurred often in mixed spectrum laser group. That was 57.69% for mixed group, 38.46% for 488 nm group.
  
  
  CONCLUSIONS
  Argon laser PDT at 488 nm had the similar therapeutic result contrasted to mixed spectrum laser group, but it was safe.
authors.affiliation: Department Of Oral Maxillofacial Surgery, Ninth People's Hospital, Shanghai Second Medical University, Shanghai 200011, China.
authors.forename: G Y
authors.initials: GY
authors.lastname: Zhou
authors.forename: Z Y
authors.initials: ZY
authors.lastname: Zhang
authors.forename: J Z
authors.initials: JZ
authors.lastname: Gu
authors.forename: J Z
authors.initials: JZ
authors.lastname: Ma