[Salvage external beam radiotherapy for prostate cancer biochemical recurrence after radical prostatectomy]

We review salvage external beam radiotherapy for biochemical recurrence after radical prostatectomy. Having defined recurrence, we analyze the risk factors of local recurrence and systemic evaluation of patients scheduled to undergo salvage radiotherapy. New techniques in external radiation, doses and volumes help us to define the areas minimizing treatment toxicity and improving the quality of the patient. We analyzed the literature to improve the therapeutic approach, based on currently known data, pending completion of further clinical trials. We describe a review about radiotherapy in biochemical failure after radical prostatectomy.