title: Evaluation of photodynamic therapy using topical aminolevulinic acid hydrochloride in the treatment of condylomata acuminate.
abstract: OBJECTIVE
  To investigate the efficacy and safety of topical application of 5-aminolaevulinic acid (ALA) photodynamic therapy (PDT) for the treatment of condylomata acuminata (CA) in larger population.
  
  
  METHODS
  Patients with CA were given a treatment of ALA-PDT once a week for 3 weeks and followed up at 4, 8, 12 and 24 weeks after the treatment finished.
  
  
  RESULTS
  In 531 patients, a clearance rate was observed 95.27%. The rates rouse with PDT cycles. The clearance rate of three PDT cycles was significant higher than one PDT cycles (P < 0.001) and two PDT cycles (P < 0.001). The clearance rate (88.73%) of small lesions (diameter small than 5mm) was significant higher than that (97.74%) of larger lesions (P < 0.001). The clearance rate varied with the location of the lesions. The clearance rate of urethral meatus was highest and that of perianal was lowest. Follow-up for patients with complete response lasted for 24 weeks. The recurrence rate was 5.65%, 11.30%, 15.07%, 15.44% and 16.20% after 1, 4, 8, 12 and 24 weeks. The recurrence rate varied with the location of the lesions. The recurrence rate of perianal was highest and that of labium was lowest. The side effects mainly included flare, pain, erosion, ulcer, and hyperpigmentation. The adverse reaction rate was 7.72%, 8.10%, 2.26%, 0.94% and 0.19%. Sexual dysfunction and urethral malformations were not observed during the 24 weeds visit.
  
  
  CONCLUSIONS
  Topical application of ALA-PDT is a simple and as effective therapy with a lower incidence of adverse effects in the treatment of condylomata acuminata.
authors.affiliation: Department of Dermatology, Huashan Hospital, Fudan University Shanghai, China.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: Department of Dermatology, Huashan Hospital, Fudan University Shanghai, China.
authors.forename: Xiao-Nian
authors.initials: XN
authors.lastname: Lu
authors.affiliation: Department of Dermatology, Huashan Hospital, Fudan University Shanghai, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Liang
authors.affiliation: Department of Dermatology, Huashan Hospital, Fudan University Shanghai, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Tang
authors.affiliation: Department of Dermatology, Huashan Hospital, Fudan University Shanghai, China.
authors.forename: Yong-Sheng
authors.initials: YS
authors.lastname: Yang
authors.affiliation: Department of Dermatology, Huashan Hospital, Fudan University Shanghai, China.
authors.forename: Xiao-Hua
authors.initials: XH
authors.lastname: Zhu
authors.affiliation: Department of Dermatology, Huashan Hospital, Fudan University Shanghai, China.
authors.forename: Juan
authors.initials: J
authors.lastname: Du
authors.affiliation: Department of Dermatology, Huashan Hospital, Fudan University Shanghai, China.
authors.forename: Yan-Yun
authors.initials: YY
authors.lastname: Shen
authors.affiliation: Department of Dermatology, Huashan Hospital, Fudan University Shanghai, China.
authors.forename: Jin-Hua
authors.initials: JH
authors.lastname: Xu
keywords: Clearance rate; condylomata acuminate; photodynamic therapy