Robotic-assisted simple prostatectomy: a systematic review and report of a single institution case series.

Open simple prostatectomy (OSP) is an effective treatment for patients with symptomatic BPH and larger volume prostates; however, it is associated with substantial risks of bleeding, transfusion and prolonged hospital length of stay (LOS). Robotic-assisted simple prostatectomy (RASP) potentially offers improved perioperative outcomes for these patients. We systematically reviewed published data on RASP outcomes and analyzed our experience at the University of California San Diego (UCSD). We identified eight published studies, all non-comparative case series (Level 3 evidence), reporting a total of 109 RASP cases from 2008 to 2012. Indications included acute urinary retention (n=48), persistent obstructive symptoms (n=51), failure of medical management (n=9) and recurrent urinary tract infections (n=2). The mean ages ranged from 65 to 77 years. More than 75% of the studies reported a mean LOS <3 days and a transfusion prevalence of 0%. The mean resected prostate weights ranged from 51 to 301 g. For UCSD, indications for surgery included urinary retention (n=11) and failure of medical management (n=5). The mean age was 68 years, transfusion prevalence 0%, mean resected prostate weight 94 g and mean LOS 1 day. All nine series observed substantial postoperative improvements in urinary symptoms and retention. These data suggest that RASP is a safe and efficacious treatment for BPH in select patients with larger prostates. Although LOS and transfusion prevalence for RASP are markedly lower than the published OSP series, comparative studies are needed to verify these results.