• E Gorgun, V Ozben, M Costedio, L Stocchi, M Kalady, and F Remzi.
• Department of Colorectal Surgery, Digestive Disease Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA. gorgune@ccf.org.
• Colorectal Dis. 2016 Nov 1; 18 (11): 1063-1071.

AimObesity adds to the technical difficulty of laparoscopic colorectal surgery. The robotic approach has the potential to overcome this limitation because of its proposed technical advantages over laparoscopy. The aim of this retrospective study was to compare the short-term outcomes of robotic surgery (RS) vs conventional laparoscopy surgery (LS) in this patient population.MethodPatients with a body mass index ≥ 30 kg/m2 undergoing RS or LS for rectal cancer between January 2011 and June 2014 were identified from an institutional database. Perioperative parameters, oncological findings and postoperative 30-day short-term outcomes were compared between the RS and LS groups.ResultsThe RS and LS groups included 29 and 27 patients, respectively. Groups were comparable in terms of patient demographics, body mass index (34.9 ± 7.2 vs 35.2 ± 5.0 kg/m2 , P = 0.71), comorbidities, surgical and tumour characteristics. Comparison of the intra-operative findings revealed no significant differences between the groups including operative time (329.0 ± 102.2 vs 294.6 ± 81.1 min, P = 0.13), blood loss (434.0 ± 612.4 vs 339.4 ± 271.9 ml, P = 0.68), resection margin involvement (6.9% vs 7.4%, P = 0.99), conversions (3.4% vs 18.5%, P = 0.09) and complications (6.9% vs 0%, P = 0.49). Regarding postoperative outcomes, there were no significant differences in morbidity except that robotic surgery was associated with a quicker return of bowel function (median 3 vs 4 days, P = 0.01) and shorter hospital stay (median 6 vs 7 days, P = 0.02).ConclusionRobotic surgery for rectal cancer in obese patients has short-term outcomes similar to laparoscopy, but accelerated postoperative recovery.Colorectal Disease © 2016 The Association of Coloproctology of Great Britain and Ireland.

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