Evolution of robotic radical prostatectomy: assessment after 2766 procedures.

BACKGROUND: Robotic-assisted radical prostatectomy (RAP) is the dominant minimally invasive surgical treatment for patients with localized prostate cancer. Only a few large series have been published to date, with few long-term data available. The current study presents what to the authors' knowledge is the largest series of patients undergoing RAP with the longest follow-up to data available to date. Using a continuous quality improvement initiative, several technical refinements were adopted, evaluating the impact of this on patient outcome.

METHODS: Over a 6-year period, 2766 consecutive men underwent RAP at the study institution. Data were collected prospectively including demographic, surgical, oncologic, and functional outcomes with up to 5-year follow-up. The first 200 and most recent 200 patients were compared to determine the impact of experience and quality improvement for patients.

RESULTS: The mean age of the patients was 60.2 years and the mean prostate-specific antigen (PSA) level at time of diagnosis was 6.43 ng/mL; 42.4% and 64.2% of patients, respectively, had a biopsy and pathologic Gleason sum of >/=7. The mean surgical and console time was 154 minutes and 116 minutes, respectively. Estimated blood loss was 100 mL; 96.7% of patients were discharged within 24 hours of surgery. At a median follow-up of 22 months, 7.3% of men had a PSA recurrence. The 5-year actuarial biochemical free survival rate was 84%.

CONCLUSIONS: To the authors' knowledge, the current study is the first report of 5-year outcomes in men undergoing RAP. These data demonstrate that RAP can be performed with favorable outcomes while minimizing complications. As experience increases, further improvements in clinicopathologic and functional parameters are achieved.