Robotic radical cystectomy and intracorporeal urinary diversion: The USC technique.INTRODUCTION
 Radical cystectomy is the gold-standard treatment for muscle-invasive and refractory nonmuscle-invasive bladder cancer.  We describe our technique for robotic radical cystectomy (RRC) and intracorporeal urinary diversion (ICUD), that replicates open surgical principles, and present our preliminary results.


 Specific descriptions for preoperative planning, surgical technique, and postoperative care are provided.  Demographics, perioperative and 30-day complications data were collected prospectively and retrospectively analyzed.  Learning curve trends were analyzed individually for ileal conduits (IC) and neobladders (NB).  SAS(®) Software Version 9.3 was used for statistical analyses with statistical significance set at P < 0.05.


 Between July 2010 and September 2013, RRC and lymph node dissection with ICUD were performed in 103 consecutive patients (orthotopic NB=46, IC 57).  All procedures were completed robotically replicating the open surgical principles.  The learning curve trends showed a significant reduction in hospital stay for both IC (11 vs. 6-day, P < 0.01) and orthotopic NB (13 vs. 7.5-day, P < 0.01) when comparing the first third of the cohort with the rest of the group.  Overall median (range) operative time and estimated blood loss was 7 h (4.8-13) and 200 mL (50-1200), respectively.  Within 30-day postoperatively, complications occurred in 61 (59%) patients, with the majority being low grade (n = 43), and no patient died.  Median (range) nodes yield was 36 (0-106) and 4 (3.9%) specimens had positive surgical margins.


 CONCLUSIONS
 Robotic radical cystectomy with totally ICUD is safe and feasible.  It can be performed using the established open surgical principles with encouraging perioperative outcomes.
C