• Tomasz Rogula, Marijan Koprivanac, Michał Robert Janik, Jacob A Petrosky, Amy S Nowacki, Agnieszka Dombrowska, Matthew Kroh, Stacy Brethauer, Ali Aminian, and Philip Schauer.
• University Hospital Cleveland Medical Center/Case Western Reserve University School of Medicine, Cleveland, OH, USA.
• Obes Surg. 2018 Sep 1; 28 (9): 2589-2596.

ObjectiveThe aim was to compare clinical outcomes of patients treated with totally robotic Roux-en-Y gastric bypass (TRRYGB) with those treated with the different laparoscopic Roux-en-Y gastric bypass (LRYGB) techniques. The clinical benefit of the robotic approach to bariatric surgery compared to the standard laparoscopic approach is unclear. There are no studies directly comparing outcomes of TRRYGB with different LRYGB techniques.MethodsOutcomes of 578 obese patients who underwent RYGB between 2011 and 2014 at an academic center were assessed. Multivariable analysis and propensity matching were used for comparing TRRYGB to different LRYGB techniques, including 21-mm EEA circular-stapled gastrojejunal anastomosis (GJA, LRYGB-21CS), linear-stapled GJA (LRYGB-LS), and hand-sewn GJA (LRYGB-HS).ResultsThe TRRYGB technique required a longer mean operative time compared to the other groups, respectively 204 ± 46 vs. 139 ± 30 min (LRYGB-21CS), 206 ± 37 vs. 158 ± 30 min (LRYGB-LS), and 210 ± 36 vs. 167 ± 30 min (LRYGB-HS). TRRYGB experienced a lower stricture rate (2 vs. 17%, P = 0.003), shorter hospital stay (2.6 ± 1.2 vs. 4.3 ± 5.5 days, P = 0.008), and lower readmission rate (12 vs. 28%, P = 0.009). No significant differences in outcomes were observed when comparing RRYGB to LRYGB-LS or LRYGB-HS.ConclusionsTRRYGB increases operative time compared to all LRYGB techniques. TRRYGB was superior to LRYGB-21CS in terms of significantly shorter hospital stay, lower readmission rate, and less frequent GJA stricture formation. TRRYGB provides no clinical advantages over the LRYGB-LS and LRYGB-HS techniques.

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