• Matthew A Pilecki, Barry B McGuire, Umang Jain, John Y S Kim, and Robert B Nadler.
• Department of Urology, Feinberg School of Medicine, Northwestern University , Chicago, Illinois.
• J. Endourol. 2014 Apr 1;28(4):430-6.

BackgroundMany American hospitals will soon face readmission penalties deducted from Medicare reimbursements, which will place further scrutiny on techniques that may offer reduced postoperative morbidity. We aimed to perform the first multi-institutional study using the National Surgical Quality Improvement Program (NSQIP) database, to compare predictors of readmission within cohorts of open radical retropubic prostatectomy (RRP) and robot-assisted laparoscopic radical prostatectomy (RALRP) in a contemporary nationwide series of radical prostatectomy.MethodsAll patients who underwent radical prostatectomy in 2011 were identified in the NSQIP database using procedural codes. As no patients in the analysis underwent LRP, patients were grouped as RRP or RALRP for analysis. Perioperative variables were analyzed using chi-squared and Student's t-tests as appropriate. Multiple logistic regression was used to identify readmission risk factors.ResultsOf 5471 patient cases analyzed, 4374 (79.9%) and 1097 (20.1%) underwent RALRP and RRP, respectively. RRP and RALRP cohorts experienced different readmission rates (5.47% vs 3.48%, respectively; p=0.002). In addition, RRP experienced a higher rate of overall complications than RALRP (23.25% vs 5.62%, respectively; p<0.001), but not higher rates of reoperation (1.09% vs 0.96%, respectively; p=0.689). Overall predictors of readmission included operative time, dyspnea, and RRP or RALRP procedure type. Current smoking and patient age were predictive of readmission for RRP only, while dyspnea was predictive of readmission following RALRP only.ConclusionThis is the first multi-institutional retrospective study that examines readmission rates and procedural intracohort predictors of readmission for RRP in the contemporary United States. We report a significant difference in postoperative complication and readmission rates in RRP compared with RALRP. Further prospective analysis is warranted.

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