Objectives: To assess the effectiveness of salvage radiotherapy (RT) for a persistent or rising prostate-specific antigen (PSA) level after radical prostatectomy, and to identify the pretreatment factors that may predict for patients likely to benefit from this treatment.
Methods: Seventy-three consecutive patients were treated during a 10-year period (1989 to 1999) with RT after radical prostatectomy. Twelve patients were excluded from analysis because of either an undetectable PSA level before RT or lack of follow-up data.