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The Role of Robotic Cystectomy in the Salvage and Palliative Setting: A Retrospective, Single-Center, Cohort Study

Abstract

This article compares surgical and survival outcomes of robot-assisted and open radical cystectomy with cutaneous ureterostomy for the treatment of frail bladder cancer patients with limited life expectancy. The institutional database was searched for cystectomy cases with cutaneous ureterostomy, from 1 June 2016 to 31 August 2022. The study population was split into two groups, according to the surgical approach. The baseline characteristics and surgical outcomes were compared. Logistic regression analyses identified predictors of major bleeding events (hemoglobin loss ≥ 3.5 g/dL or blood transfusion) and re-operation within 30 days from surgery. The Kaplan-Meier method estimated the impact of the robotic approach on overall survival and Cox regression analysis assessed its predictors. A total of 145 patients were included: 30% (n = 43) underwent robotic cystectomy. Patients' characteristics and tumor stages distribution were comparable in the two groups but those receiving a minimally invasive treatment showed significantly reduced times to flatus, bowel and hospital discharge (all < 0.001). Although operation times were longer in this cohort, major bleeding events (60% vs. 89%) and postoperative severe complications (0 vs. 8%) (both < 0.001) were less frequent compared to the open approach. A logistic regression showed that robotic surgery independently predicted major bleeding events (OR: 0.26; 95%CI 0.09-0.72; = 0.02) but not the need for re-intervention. A Kaplan-Meier analysis showed that robotic cystectomy was associated with a significant advantage in terms of overall survival (LogRank = 0.03), and this result was confirmed by Cox regression analysis (HR: 0.39; 95%CI 0.14-0.94; = 0.04). Robotic cystectomy with cutaneous ureterostomy may represent a viable option to treat frail bladder cancer patients, as the minimally invasive approach reduces the risk of bleeding and serious complications and provides a prompt restoration of bowel function and a shorter hospital stay compared to open surgery.

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