Mini Gastric Bypass-One Anastomosis Gastric Bypass (MGB-OAGB)-IFSO Position Statement

Abstract

The International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO) has played an integral role in educating both the metabolic surgical and the medical community at large about the role of innovative and new surgical and/or endoscopic interventions in treating adiposity-based chronic diseases.The mini gastric bypass is also known as the one anastomosis gastric bypass. The IFSO has agreed that the standard nomenclature should be the mini gastric bypass-one anastomosis gastric bypass (MGB-OAGB). The IFSO commissioned a task force (Appendix 1) to determine if MGB-OAGB is an effective and safe procedure and if it should be considered a surgical option for the treatment of obesity and metabolic diseases.The following position statement is issued by the IFSO MGB-OAGB task force and approved by the IFSO Scientific Committee and Executive Board. This statement is based on current clinical knowledge, expert opinion, and published peer-reviewed scientific evidence. It will be reviewed in 2 years.

Initial Experience with Laparoscopic Mini-gastric Bypass in Korean Obese Patients

“…During the last 20 years, a number of surgeons from different countries have been able to replicate these results and ＞16,000 published cases now exist in the surgical literature [9]. We believe that there is now sufficient evidence supporting the adoption of this procedure as another surgical treatment option.…”

“…In terms of safety, there were no early major com- LMGB has one less anastomosis than LRYGB, and this would certainly reduce the possibility of anastomotic leakage and bleeding; however, the longer staple line on the gastric pouch and remnant stomach than LRYGB might increase such possibility [8]. The main criticism against LMGB has been the potential for bile reflux and its consequences such as intestinal metaplasia, Barrett's esophagus, and gastric/esophageal cancer [25,26] underreported or does not seem to be a major issue [9]. In addition, it should be considered that cancer in the bypassed stomach can be occurred.…”

« L’affaire du bypass gastrique en oméga » (improprement appelé « mini‑bypass »)

“…Treize ans plus tard, je suis convaincu que cette opération est plus efficace et moins morbide que le bypass en Y et surtout que la sleeve gastrectomie. Cette conclusion rejoint celles émises par ceux qui ont une longue expérience de chirurgie de l'obésité dans le monde : l'an dernier l'IFSO (Fédération internationale de chirurgie de l'obésité) a désigné un groupe de travail qui a repris tous les travaux de la littérature et a pris position en faveur de cette opération [4]. Il y a donc un consensus mondial pour développer cette intervention, et la France pourrait se marginaliser en l'interdisant, ce serait contre-productif.…”

“…9(6):914-9 Même si les RCT non retenues par le rapport concernent surtout le rôle du OAGB sur le diabète, il s'agit de données essentielles. Les sept études randomisées ont été revues dans la méta-analyse qui a conduit au Position Statement en faveur de l'OAGB par l'IFSO [4] et par l'ASMBS [10]. Pourquoi en faire abstraction ?…”

Early Weight Loss Outcomes and Glucose Metabolism Parameters After Banded Versus Non-Banded One Anastomosis Gastric Bypass: A Prospective Randomized Trial

“…In the last International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO) report, it accounts for about 2% of all procedures performed in the world (6) . The current IFSO position states that OAGB is a recognized bariatric/metabolic technique and should not be considered an experimental procedure (7) .…”