Comparison of 2-Year Oncological Outcome and Early Recurrence Patterns in Patients with Urothelial Bladder Carcinoma Treated with Open or Robot-Assisted Radical Cystectomy with an Extracorporeal Urinary Diversion

Data on oncological follow-up after robotic-assisted radical cystectomy (RARC) have been reported only scarcely and individual studies have reported an increase in early recurrences and atypical recurrences.

Clinical data of 89 patients with RARC were compared to 59 patients with open radical cystectomy (ORC) at a single institution. Two-year cancer-specific (2y-CSS) and 2-year overall survival (2y-OS) related to histopathological tumor stage of RARC patients calculated by Kaplan-Meier method were compared to ORC patients using log-rank test. Early clinical recurrence rate (eCR, progression ≤6 months post-cystectomy) and metastatic pattern of both groups were compared by chi-square test.

Median follow-up 32 months (RARC) and 47.5 months (ORC), both groups were balanced in baseline characteristics. For RARC pts, -2y-OS and CSS-free survival rates were 80 and 90%, for ORC pts 65 and 71% (all p > 0.05). Margin status was not significantly different. eCR was observed in 10 out of 89 (11%) RARC pts and in 7 out of 59 (12%) ORC pts (p = 0.9). No difference in atypical metastases was seen between groups.

Two-year oncological outcomes of RARC patients are comparable to ORC patients without differences regarding ePR or metastatic pattern.

Urologia internationalis. 2018 Jul 25 [Epub ahead of print]

Günter Niegisch, Alessandro Nini, René Michalski, Alina Henn, David Mally, Peter Albers, Robert Rabenalt

Department of Urology, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany.

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