In 36 case of robot-assisted radical cystectomy and urinary diversion for muscle-invasive bladder tumor: age: 58 (range: 40 - 83), operative time: 469 minutes (range: 330 - 660), EBL: 436.3 mL (range: 200 - 600), postop hospital stay: 15.8 days (range: 8-30).