MP41-09 A MULTI-INSTITUTIONAL EXPERIENCE WITH ROBOTIC APPENDICEAL URETEROPLASTY

OBJECTIVE To report a multi-institutional experience with robotic appendiceal ureteroplasty. METHODS This is a retrospective review of 13 patients undergoing right appendiceal flap ureteroplasty at 2 institutions between April 2016 and October 2019. The primary endpoint was surgical success defined by the absence of flank pain and radiographic evidence of ureteral patency. RESULTS Eight of 13 (62%) underwent appendiceal onlay while 5/13 (38%) underwent appendiceal interposition. Mean length of stricture was 6.5 cm (range 1.5-15 cm) affecting anywhere along the right ureter. Mean operative time was 337 minutes (range 206-583), mean estimated blood loss was 116 mL (range 50-600), and median length of stay was 2.5 days (range 1-9). Balloon dilation was required in 1/12 (8%). One patient died on postoperative day 0 due to a sudden cardiovascular event. Otherwise, there were no complications (Clayien-Dindo > 2) within 30 days from surgery. At a mean follow up of 14.6 months, 11/12 (92%) were successful. CONCLUSION Robotic appendiceal ureteroplasty for right ureteral strictures is a versatile technique with high success rates across institutions. (C) 2020 Elsevier Inc.