Presalvage prostate‐specific antigen (PSA) and PSA doubling time as predictors of biochemical failure of salvage cryotherapy in patients with locally recurrent prostate cancer after radiotherapy

The value of presalvage cryotherapy serum PSA level in predicting biochemical failure in patients with local recurrence of prostate cancer (PCa) after radiotherapy was documented; however, little is known about the predictive value of prostate-specific antigen (PSA) doubling time (DT) in this patient group. The purpose of the current study was to evaluate serum PSA level and PSA DT as predictors of salvage cryotherapy outcomes in patients being...