How to assess renal function in patients with a neobladder

Robot-assisted radical cystectomy with totally intracorporeal neobladder diversion: perioperative, oncologic, and functional outcomes

Background

The use of robot-assisted radical cystectomy (RARC) has increased rapidly in the past decade. However, reports of intracorporeal neobladder diversion remain limited. This article aimed to provide the surgical steps for RARC with totally intracorporeal neobladder diversion and the present perioperative, oncologic, and functional outcomes.

Methods

Between June 2017 and January 2020, RARC with intracorporeal neobladder diversion was performed in 12 male patients. Perioperative variables, pathologic data, early and late complications, urinary continence, potency, and recurrence-free survival were evaluated as outcome measures.

Results

The surgery was successful in all cases without open conversion. The median operative time, estimated blood loss, and postoperative hospital stay were 419 min (range, 315–640 min), 400 mL (range, 250–1,200 mL), and 14.5 days (range, 9–25 days), respectively. No positive surgical margins nor lymph nodes were observed. Eleven minor (grades 1 and 2) and one major (grades 3–5) complications were found in the early (0–30 days) period and six minor and one major complications in the late (>30 days) period. The median follow-up time was 13.1 months (range, 5.4–32.0 months), and two patients died due to metastatic disease. At 6 months after surgery, the daytime continence rate was 90.0%, while the nighttime continence rate was 80.0%. Only two patients (16.7%) reported capability of potency. The study was limited by a small sample size and short follow-up.

Conclusions

RARC with intracorporeal neobladder is a complex procedure but technically feasible with acceptable oncologic and functional outcomes. Studies with long-term follow ups and increased number of cases and randomized trials are indispensable to assess the potential of this technique.