Journal
SURGERY FOR OBESITY AND RELATED DISEASES
Volume 12, Issue 1, Pages 194-198Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.soard.2015.02.004
Keywords
Gastric bypass; Roux-en-Y; Antecolic; Antegastric; Retrocolic; Retrogastric; Bowel obstruction; Internal hernia; Postoperative complications; Surgical technique
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Background: Previous literature is varied with regard to rates of bowel obstruction after laparoscopic Roux-en-Y gastric bypass (LRYGB). Internal herniation through mesenteric defects is a common cause of bowel obstructions. There are advantages and disadvantages to routing the Roux limb via a retrocolic/retrogastric (RC/RG) versus an antecolic/antegastric (AC/AG) position. Objective: To review the literature comparing obstruction rates in RYGB using the antecolic versus retrocolic approach. Setting: Community-based integrated multispecialty health system with a teaching hospital serving 19 counties over a 3-state region. Methods: A literature search for articles published from 1994-2013 was completed. Articles were included if they reported an n > 25, Roux limb route, obstruction rate by route, and follow-up duration. Statistical analysis included chi(2) test by patient number. Results: The initial search identified 241 articles; 8 met inclusion criteria. There were 4805 patients in the AC/AG group, and 2238 in the RC/RG group. Follow-up ranged from 0 to 68 months. A linear stapled technique was reported in 4231 (88%) patients in the AC/AG group and 1541 (69%) of RC/RG group. Handsewn closure of mesenteric defects was reported in 2152 (45%) patients in the AC/AG group and 1012 (45%) patients in the RC/RG group. Bowel obstructions occurred in 68 (1.4%) patients in the AC/AG group and 117 (5.2%) patients in the RC/RG group (P < .001). Internal hernias were reported in 65 (1.3%) patients in the AC/AG group and 52 (2.3%) patients in the RC/RG group (P < .001). Two mortalities were reported in the AC/AG group. Conclusions: Increased rates of bowel obstruction and internal hernia were observed in the RC/RG group compared with the AC/AG group. A prospective, randomized trial would be necessary to definitively determine the impact of Roux limb position and routine closure of mesenteric defects on bowel obstruction rates after gastric bypass. (C) 2016 American Society for Metabolic and Bariatric Surgery. All rights reserved.
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