MP32-13 BLADDER CANCER RECURRENCE PATTERNS AFTER ROBOTIC AND OPEN RADICAL CYSTECTOMY IN 837 PATIENTS AT A HIGH-VOLUME ACADEMIC CENTER

INTRODUCTION AND OBJECTIVES:There is some concern that patterns of recurrence after robotic radical cystectomy (RRC) for bladder cancer may vary compared to open radical cystectomy (ORC) due to prolonged pneumoperitoneum and potential cell seeding. Our objective was to compare rates and patterns of recurrence after RRC and intracorporeal urinary diversion (ICUD) compared to ORC.METHODS:We identified 837 consecutive patients who underwent RRC and ICUD (n=238) or ORC (n=598) from August 2009 to June 2016. All data was collected prospectively within an IRB-approved database and analysed retrospectively. Recurrences were classified as local, distant or secondary urothelial carcinomas. Kaplan-Meier and multivariate Cox regression analysis was performed. A p-value <0.05 was considered statistically significant.RESULTS:Both groups were comparable with respect to age, BMI, ASA, neoadjuvant chemotherapy status, CIS, LVI, positive soft-tissue margins and node-positive disease (Table 1). RRC and ICUD patients were m...