Robot-assisted uretero-enteric reimplantation for uretero-enteric anastomotic strictures following robot-assisted radical cystectomy: Surgical approach and outcomes over two decades.

OBJECTIVE

We described the technique and outcomes of robot-assisted repair of uretero-enteric strictures (UES) following robot-assisted radical cystectomy (RARC) and urinary diversion.

METHODS

Retrospective review of our RARC database from November 2005 to August 2023 at Roswell Park Comprehensive Cancer center was performed. Patients who developed UES and ultimately underwent robot-assisted uretero-enteric reimplantation (RUER) were identified. Kaplan-Meier method was used to compute the cumulative incidence recurrence rate of UES after RUER. A multivariable regression model was used to identify variables associated with UES recurrence.

RESULTS

A total of 123 (15%) out of 808 RARC patients developed UES, of whom 52 underwent reimplantation (45 patients underwent RUER [=55 cases] and seven patients underwent open uretero-enteric reimplantation). The median time from RARC to UES was 4.4 (interquartile range 3.0-7.0) months, and the median time between UES and RUER was 5.2 (interquartile range 3.2-8.9) months. The 3-year recurrence rate after RUER is about 29%. On multivariable analysis, longer hospital stay (hazard ratio 1.37, 95% confidence interval 1.16-1.61, <0.01) was associated with recurrent UES after RUER.

CONCLUSION

RUER for UES after RARC is feasible with durable outcomes although a notable subset of patients experienced postoperative complications and UES recurrence.