Biochemichal recurrence in prostate cancer after salvage surgery in correlation to the site of reccurrent disease.

306Background: Due to improved diagnostic tools salvage surgery is getting more popular after failure of primary local treatment as radical prostatectomy or radiotherapy. We analyzed PSA progression free survival (PFS) after radical prostatectomy and or radiotherapy in accordance to the location of the recurrence and the performed salvage surgery. Methods: We retrospectively analyzed 274 patients with salvage surgeries. 142, 18, and 114 patients underwent salvage radical prostatectomy (SPRE, Group1), locoregional recurrences mainly in seminal vesical remnants (SVR, Group2) or salvage lymph node dissection (SLND, Group3). All patients were diagnosed either by Choline- or more lately PSMA-PET CT. All surgeries had been done open. In Group1 radical prostatectomy and lymph node dissection, in Group 2 the seminal vesicals and in Group3 an ipsilateral pelvic lymph node dissection had been performed due to imaging results. Results: Median age at time of surgery was 67(62-72)years. Median PSA was 3.1(1.45-5.45)ng...