Topikal Fotodinamik Tedavi Sonrası Rekürrens ve Kozmetik İyileşme SonuÇları.

Background and Design: Photodynamic therapy (FDT) is a photochemotherapy modality which is used frequently and effectively in the treatment of actinic keratosis, Bowen disease and basal cell carcinomas. This study was performed to determine cure rates, cosmetic outcome and recurrence rates after aminolevulinic acid (ALA)-based photodynamic therapy for skin lesions showing complete response to treatment procedure. Material and Method: Sixty-eight patients (27 females and 41 males) with 78 lesions were included in the study. Among them, 25 were actinic keratosis (AK), 8 were actinic cheilitis (AC), 30 were basal cell carcinomas (BCC), 3 were Bowen disease, 10 were intraepidermal epithelioma (IEE), one lesion was parapsoriasis and one lesion was verruca plantaris. Six to 8 hours after topical administration of ALA (20%), the lesions were exposed to light from a broad-band light source. Skin biopsy specimens were obtained from 74 lesions for histopathological control. Results: At the end of the second month of treatment, fifty-six (72%) of seventy-eight lesions showed complete clinical response, whereas fourty-seven of 74 lesions (63.5%) exhibited complete histopathological clearance. A total of 9 recurrences (16%) was observed during a median follow-up of 36 months. Recurrence rates were 3 (14%) in AK, 1 (17%) in AC, 1 (8%) in superficial BCC, 3 (75%) nodular BCC and 1 (12.5%) in IEE. Cosmetic outcome was excellent and good in 42 lesions (89%), fair in 3 lesions (6%) and poor in 2 lesions (5%). Conclusion: Topical photodynamic therapy is a noninvasive, effective and cosmetic modality of treatment in the selected skin lesions, as an alternative to the conventional procedures. [ABSTRACT FROM AUTHOR]