Long-Term Outcomes of One-Anastomosis Gastric Bypass: A Systematic Review of Studies with at Least 10 Years of Follow-Up

Obesity Surgery 2026 Open access

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Authors: Adam Abu-Abeid, Andrei Keidar, Shiran Gabay, Jonathan B. Yuval, Nir Messer, Mati Shnell, Shai Meron Eldar, Avner Leshem
DOI: 10.1007/s11695-025-08479-z
Cited by: 3
References: 24

Abstract

One anastomosis gastric bypass (OAGB) is increasingly becoming popular worldwide and is considered a safe and effective procedure. However, data regarding long-term efficacy is lacking. We performed a systematic review of articles reporting outcomes in patients with a minimum follow-up of 10 years. Five retrospective studies comprising 1,750 patients met the inclusion criteria. Overall, the weighted mean percentage of total weight loss was 31.1% ( range 29.6-32.1), and remission rates of type 2 diabetes and hypertension ranged from 70.8 to 90% and 56.7-85%, respectively. Conversion or revisional surgery following OAGB was required in 5.2% ( range 3.3-6.4%) of patients on average. This systematic review suggests that OAGB remains a relatively effective and safe procedure after 10 years.

Fields of Study & Subjects

Bariatric Surgery and Outcomes Gastric Cancer Management and Outcomes Body Contouring and Surgery

Publication details

Journal / source
Obesity Surgery
Publisher
Springer Science and Business Media LLC
Volume
36
Issue
2
Pages
887–893
Publication date
5 January 2026
Language
EN