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Stent vs Stent-Less Ileal Conduits After Radical Cystectomy: Is There a Difference in Early Postoperative Outcomes?

Urology Practice 2024 September 6
INTRODUCTION: Placing ureteral stents at the uretero-ileal anastomosis for radical cystectomy with ileal conduit (RCIC) has long been common practice. Recently, some providers have begun omitting stents. We sought to investigate differences in perioperative and 30-day outcomes between patients who underwent radical cystectomy with ileal conduit (RCIC) with and without stents placed at the uretero-ileal anastomosis.

METHODS: We identified RCICs performed between 2019 to 2021 in the National Surgical Quality Improvement Program database and corresponding Cystectomy-Targeted Participant Use File. Baseline demographics, comorbidities, and operative parameters were compared via Pearson's chi-square and t -tests between stented and stent-less RCICs. Outcomes of interest, including rates of urinary tract infections (UTIs), acute kidney injury (AKI), renal failure requiring dialysis, ileoileal anastomotic leaks, ureteral obstruction, urinary leak or fistula formation, reoperations, and 30-day hospital readmissions were compared using Pearson's chi-square. All statistical tests were 2 tailed with P < .05 considered significant.

RESULTS: Five Thousand Four Hundred Eighteen RCICs were identified. Four hundred ninety-eight (9.2%) were stent-less. There were no differences in baseline demographics or comorbidities. Significantly fewer stented patients had robotic-assisted operations (23% vs 29%, P < .01). Stented patients had lower rates of urinary leak or fistula formation (3.1% vs 4.8%, P = .04). There was no significant difference in 30-day rates of UTIs, AKIs, renal failure, ileoileal anastomotic leaks, ureteral obstruction, reoperations, and readmissions. Limitations include retrospective design and lack of longitudinal tracking past 30 days.

CONCLUSIONS: Stent-less patients had non-inferior outcomes compared to stented patients in most important 30-day outcomes. Our analysis suggests that stents may not be necessary in ileal conduit urinary diversion procedures.

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