In this longitudinally followed active surveillance cohort we observed a small decrease in erectile function and an increase in the use of phosphodiesterase-5 inhibitors with time. While we cannot separate out the effect of multiple biopsies from that of the natural aging process on erectile function in this observational study, our data suggest that active surveillance related biopsies do not have a large impact on erectile function.
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Braun et al. (2013) studied this question.
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