Oncologic Outcome of Robot-Assisted Laparoscopic Prostatectomy in the High-Risk Setting

摘要

BACKGROUND AND PURPOSE: Previous studies have demonstrated the feasibility of open radical prostatectomy in the high-risk setting. Management of high-risk disease with robot-assisted laparoscopic radical prostatectomy (RALP) is controversial. We examined biochemical recurrence in a selected cohort of high-risk patients who were undergoing RALP. PATIENTS AND METHODS: Men with high-risk prostate cancer who underwent bilateral nerve-sparing, nonsalvage RALP by a single surgeon without adjuvant or neoadjuvant therapy of any kind were identified. High risk was defined by preoperative prostate-specific antigen (PSA) level >10 ng/dL, Gleason score ≥8 on final pathologic evaluation, or stage ≥pT(3). Postoperative PSA value ≥0.2 ng/dL defined biochemical recurrence. RESULTS: A total of 73 men were identified. There was no significant difference in surgical margin positivity (38% overall) or prostate size between recurrence and nonrecurrence cohorts. Biochemical failure was significantly associated with higher pathologic Gleason score (P = 0.0085) but not pathologic stage (P = 0.22) or preoperative PSA level (P = 0.18). With follow-up to 85 months (mean 31.8 mos), biochemical recurrence-free survival was 77% with mean time to recurrence of 7.7 months. Recurrence occurred significantly earlier than later (P < 0.001). CONCLUSIONS: Reasonable short- to intermediate-term biochemical outcomes can be achieved in a recurrence-prone group of high-risk men who are undergoing RALP. RALP is feasible in a selected cohort of high-risk men who are undergoing aggressive local therapy.