• Urologic oncology · Oct 2014

    Perioperative complications and oncological safety of robot-assisted (RARC) vs. open radical cystectomy (ORC).

    • Günter Niegisch, Peter Albers, and Robert Rabenalt.
    • Department of Urology, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany. Electronic address: Guenter.Niegisch@med.uni-duesseldorf.de.
    • Urol. Oncol. 2014 Oct 1;32(7):966-74.

    ObjectivesTo assess the surgical and oncological outcome of robot-assisted radical cystectomy (RARC) compared with open radical cystectomy (ORC).Patients And MethodsClinical data of 64 patients undergoing RARC between August 2010 and August 2013 were prospectively documented and retrospectively compared with 79 patients undergoing ORC between August 2008 and August 2013 at a single academic institution. Perioperative results, surgical margins status, and nodal yield after RARC and ORC were compared using Mann-Whitney U test (continuous variables) and chi-square test (categorical variables). Additional age-stratified analysis was performed in elderly patients (≥75 y). To avoid inference errors by multiple testing, P-values were adjusted using Bonferroni׳s correction.ResultsBaseline characteristics of both cohorts were balanced. RARC patients had significantly less blood loss (RARC: 300 [interquartile range {IQR}: 200-500]ml; perioperative transfusion rate: 0 [IQR: 0-2] red packed blood cells [RPBCs]; ORC: 800 [IQR: 500-1200]ml, P<0.01; transfusion rate: 3 [IQR: 2-4] RPBCs, P<0.01), and hospital stay of RARC patients was reduced by 20% (RARC: 13 [IQR: 9-17]d, ORC: 16 [IQR: 13-21]d, P< 0.01). A total of 55 patients who underwent RARC and 59 patients who underwent ORC were eligible for analysis of oncological surrogates "surgical margin status" and "lymph-node yield" as well as for survival data. No differences between patients undergoing RARC or ORC were observed. In elderly patients (≥75 y; RARC: 17 patients, ORC: 28 patients), decreased intraoperative blood loss (RARC: 300 [IQR: 100-475]ml; ORC: 800 [IQR: 400-1300]ml, P<0.01) and lower transfusion rate (RARC: 0 [IQR: 0-1] RPBCs; ORC: 4 [IQR: 2-5] RPBCs, P<0.01) were observed in the robotic group. Major limitations of this study are the retrospective study design and a potential selection bias.ConclusionsRARC provides significant advantages compared with ORC regarding blood loss and postoperative recovery, whereas surgical and oncological outcomes are not different.Copyright © 2014 Elsevier Inc. All rights reserved.

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