Can J Urol
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Clinical Trial
Success of sildenafil for erectile dysfunction in men treated with brachytherapy or external beam radiation for prostate cancer.
We undertook to determine if any significant differences in the efficacy of sildenafil citrate for erectile dysfunction (ED) exists between patients who have received external beam radiation or brachytherapy for prostate cancer. ⋯ Sildenafil citrate improved ED in a significantly greater number of patients who had undergone brachytherapy over those who had received external beam radiation. However, the patients who had received external beam radiation were both older and experienced a longer lapse of time between completion of radiotherapy and administration of sildenafil citrate than the brachytherapy patient group. This may explain the poorer success in the external beam radiation patients. The success of sildenafil in both groups of patients was lower than has previously been reported.