Extraperitoneal robot-assisted radical prostatectomy: a high-volume surgical center experience

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BACKGROUND: Herein we report our high-volume single center experience with extraperitoneal robot-assisted radical prostatectomy (eRARP) in patients with prostate cancer (PCa). METHODS: A retrospective chart review of our prospectively maintained institutional PCa database was performed to analyze eRARP cases done between April 2009 and March 2016. Nerve-sparing technique was applied in accordance with Tewari. Baseline characteristics, surgical outcomes, continence and erectile function were assessed by descriptive statistics. RESULTS: Of 1354 patients, 61% had intermediate-risk disease. Mean total operative duration was 146±44 min (median 140 minutes; interquartile range 120-160 minutes). In 91.7% of case no complication was recorded. Gleason Score on final pathology was mostly 6 (43.3%) or 7 (3+4) (32.3%). The pathological T stage was mostly pT2c (53.8%). Patients who had a bilateral nerve sparing procedure showed the best functional results, with 81.2% continence rate at 1 month, and 65% reported recovery of erectile function at 3 months postoperation. CONCLUSIONS: eRARP is a safe, reproducible, and effective procedure for the surgical treatment of prostate cancer. Superior functional outcome can be achieved when a bilateral intrafascial nerve-sparing approach can be performed.

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