Shorter overall operative time when barbed suture is used in primary laparoscopic gastric bypass: A cohort study of 25,006 cases

Abstract

BackgroundClosing the remaining opening in a linear stapled anastomosis, for example in laparoscopic Roux-en-Y gastric bypass (LRYGB), can be challenging. ObjectivesTo evaluate if the novel unidirectional barbed suture (BS) is of value in LRYGB compared with polyfilament (PS) suture. We have compared operative time, early complications, and length of stay, as well as anastomotic strictures and small bowel obstruction during the first year. SettingRetrospective study from the Scandinavian Obesity Surgery Registry (SOReg). MethodsA nationwide cohort of 25,006 primary LRYGB (2211 BS and 22,795 PS) from SOReg were studied. No preoperative differences in age or gender were noted; however, BS patients had lower Body Mass Index (BMI) (41.3 versus 42.3 kg/m2, P<.001) and less diabetes (13.7% versus 15.4%, P = .03). ResultsTotal operative time was 11 minutes (16%) shorter using BS compared with PS (58 versus 69 minutes, P<.001), although the mesenteric openings were more frequently closed among BS patients (94% versus 71%, P<.001). No differences were seen in early complications; anastomotic leaks or intra-abdominal abscesses were noted in 1.8% and 1.4%, respectively, P = .17. The incidence of anastomotic strictures was similar (.13% versus .17%, P = .73) as was the incidence of surgery for small bowel obstruction (1.8% versus 1.6%, P = .69). ConclusionsThe use of barbed suture for closing the remaining opening in the gastrojejunostomy shortened the operative time without increasing the risk of complications. BS is still uncommon in LRYGB, but its implementation could have significant impact on operative time.