Abstract
SignificanceEvaluate a photodynamic therapy (PDT) protocol for low-risk basal cell carcinoma (BCC) treatment that requires less time spent at the hospital and is less painful. ApproachEight BCCs were selected, debulked, and received 20 % methyl aminolevulinate cream. After 3 h, the first irradiation was performed at the hospital (20 min, 150 J/cm2). Then, the cream was re-applied, and a portable irradiation prototype was fixed to the skin around the lesion. After 1.5 h, the patients turned on the prototype for irradiation at home (for 2 h, totalizing 312 J/cm2). Disease-free survival rate and pain score during irradiations were evaluated. ResultsThe clearance at 30 days after PDT was 87.5 % by histological analysis. The mean follow-up was 21.5 months and the recurrence-free survival at 22 months was 75 %. The pain score was significantly lower at home. ConclusionsA potentially less painful and more comfortable PDT treatment protocol with proven long-term efficiency is presented. A randomized clinical trial has been conducted to confirm these results.
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