Comparing Robotic-Assisted to Open Radical Cystectomy in the Management of Non-Muscle-Invasive Bladder Cancer: A Propensity Score Matched-Pair Analysis

Simple Summary In this study, we analyzed 593 patients with NMIBC who underwent radical cystectomy via a robotic-assisted or open approach between 2015 and 2020. Patients with NMIBC who underwent RARC or ORC were matched 1:1 by age, sex, BMI, year of surgery and urinary diversion. We found that RARC + ICUD for patients with NMIBC is safe and associated with a lower blood loss, a lower transfusion rate and a shorter hospital stay compared to ORC. Complication rates were similar. Concerning oncologic outcomes, RARC appeared non-inferior to ORC with no significant difference in DFS, CSS and OS. These results must be confirmed with prospective randomized studies.Background: For non-muscle-invasive bladder cancer (NMIBC) requiring radical surgery, limited data are available comparing robotic-assisted radical cystectomy with intracorporeal urinary diversion (iRARC) to open radical cystectomy (ORC). The objective of this study was to compare the two surgical techniques. Methods: A multicentric cohort of 593 patients with NMIBC undergoing iRARC or ORC between 2015 and 2020 was prospectively gathered. Perioperative and pathologic outcomes were compared. Results: A total of 143 patients operated on via iRARC were matched to 143 ORC patients. Operative time was longer in the iRARC group (p = 0.034). Blood loss was higher in the ORC group (p < 0.001), with a consequent increased post-operative transfusion rate in the ORC group (p = 0.003). Length of stay was longer in the ORC group (p = 0.007). Post-operative complications did not differ significantly (all p > 0.05). DFS at 60 months was 55.9% in ORC and 75.2% in iRARC with a statistically significant difference (p = 0.033) found in the univariate analysis. Conclusion: We found that iRARC for patients with NMIBC is safe, associated with a lower blood loss, a lower transfusion rate and a shorter hospital stay compared to ORC. Complication rates were similar. No significant differences in survival analyses emerged across the two techniques.

Automated summary

This study compared the outcomes of robotic-assisted radical cystectomy with intracorporeal urinary diversion (iRARC) and open radical cystectomy (ORC) in the treatment of non-muscle-invasive bladder cancer (NMIBC). The results showed that iRARC was safer for patients, with lower blood loss, transfusion rate, and shorter hospital stay compared to ORC. The complication rates were similar between the two techniques. There were no significant differences in survival outcomes between iRARC and ORC.