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Purpose. Although laparoscopic Roux-en-Y gastric bypass (LRYGB) is a frequently performed bariatric procedure, there is still no consensus on its technical implementation. Methods. 211 patients treated with LRYGB in a single institution between March 2011 and October 2016 were analyzed retrospectively. A subgroup analysis for the linear (LSA) versus circular stapler technique (CSA) for gastrojejunal anastomosis (GJA) was performed to evaluate complications and outcomes. Results. 128 (60.6%) patients received GJA with CSA and 83 (39.4%) with LSA. Average weight loss one year after surgery, respectively, BMI after one year of follow-up (kg/m2), showed no significant difference. Median surgery time was significantly shorter in the LSA group. If the procedure was performed with CSA, significantly more wound infections occurred. Conclusions. Both the circular and the linear stapler techniques for gastrojejunal anastomosis in laparoscopic Roux-en-Y gastric bypass are safe methods with comparable outcomes. A disadvantage of CSA is the significantly higher rate of wound infections, a circumstance which requires increased attention.

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