[From mini gastric bypass to one anastomosis gastric bypass, 20 years of one anastomosis gastric bypass].

In 2001, Rutledge reported the first case of mini gastric bypass (MGB). Carbajo improved the technique of MGB and named it one anastomosis gastric bypass (OAGB). Over the past 20 years, a large number of clinical and basic studies on OAGB/MGB have been reported, and the answers to some key questions about OAGB/MGB have gradually become clear. From a technical point of view, MGB and OAGB can be regarded as two subvariants of one surgery. The advantages of OAGB/MGB include: (1) simplicity, safety and lower probability of internal hernia;(2) stable and durable weight reduction effect; (3) stable and durable remission rate of type 2 Diabetes. The disadvantages of OAGB/MGB include: (1) bile reflux; (2) higher risk of malnutrition. OAGB/MGB has achieved a good balance between effectiveness and safety, and has become the most noticed and fastest-growing bariatric and metabolic procedure in recent years. OAGB/MGB has been recommended as a standard bariatric and metabolic procedure by IFSO and ASMBS.2001年，Rutledge教授报道了首例迷你胃旁路术（MGB）；2004年，Carbajo教授对MGB进行了技术改进并命名为单吻合口胃旁路术（OAGB）。20年来，大量关于OAGB和MGB的临床和基础研究不断见诸报道，关于MGB和OAGB一些焦点问题的答案也逐渐明晰。从技术角度来看，MGB和OAGB可以视作一种手术的两个亚变种，以下统称OAGB。OAGB的优势包括：（1）简单、安全和更低的内疝发生率；（2）稳定持久的减重效果；（3）稳定持久的降糖效果。OAGB的劣势包括胆汁反流和较高的营养不良发生率。OAGB在有效性和安全性之间达到了良好的均衡，成为近年来最受关注且增长最为迅速的减重代谢手术方式，已经被国际减重代谢外科联盟和美国代谢和减肥外科学会推荐为标准术式。.