Abstract 4085
Background
To analize the results of adjuvant and salvage radiotherapy after radical prostatectomy and to determine prognostic factors of biochemical relapse free survival (BRFS).
Methods
302 patients were treated at our institution over a 12-year period. Overall survival and biochemical-relapse free survival were calculated using Kaplan-Meier and multivariate Cox regression analysis was used to assess differences between groups.
Results
Mean age at diagnosis was 65 years (42-80). All patients underwent radical prostatectomy combined with pelvic lymphadenectomy in 47.1% of cases. Adjuvant RT was performed in 113 patients and salvage RT in 183 (9 for local recurrence). The distribution of patients by pT stage was pT2a-b(30.3%), pT2c (35%), pT3(29%) and pT4(2.3%). Upgrade in Gleason score between biopsy and prostatectomy was experienced by 46.7% of patients. Positive surgical margins were reported in 56.5% of cases. Neoadjuvant androgen ablation before surgery was given to 36.5%. Mean pre-RT PSA of 0.46ng/ml (0-12.8) and mean dosis to surgical bed was of 70Gy (60-76Gy). Mean follow-up was 58.85 months (1-153 months). Overall survival at 5 and 10 years was 98.1% and 94.3%, respectively and BRFS at 5 and 10 years was 76.5% vs. 61.8%, respectively. The timing of RT (ART vs. SRT) and pre-RT PSA
Conclusions
Postoperative radiation therapy provides excellent long-term overall survival with an aceptable BRFS. Pre-RT PSA
Clinical trial identification
Legal entity responsible for the study
Hospital Ramón y Cajal
Funding
None
Disclosure
All authors have declared no conflicts of interest.