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International databases were searched for articles published by September 10, 2020, on OAGB\/MGB as a revisional procedure after restrictive procedures. Twenty-six studies examining a total of 1771 patients were included. The mean initial BMI was 45.70\u00a0kg\/m<jats:sup>2<\/jats:sup>, which decreased to 31.52, 31.40, and 30.54\u00a0kg\/m<jats:sup>2<\/jats:sup> at 1, 3, and 5-year follow-ups, respectively. Remission of type-2 diabetes mellitus (T2DM) following OAGB\/MGB at 1-, 3-, and 5-year follow-up was 65.16\u2009\u00b1\u200924.43, 65.37\u2009\u00b1\u200936.07, and 78.10\u2009\u00b1\u200914.19%, respectively. Remission\/improvement rate from gastroesophageal reflux disease (GERD). Also, 7.4% of the patients developed de novo GERD following OAGB\/MGB. Leakage was the most common major complication. OAGB\/MGB appears to be feasible and effective as a revisional procedure after failed restrictive bariatric procedures.<\/jats:p>","DOI":"10.1007\/s11695-020-05079-x","type":"journal-article","created":{"date-parts":[[2020,10,29]],"date-time":"2020-10-29T00:03:51Z","timestamp":1603929831000},"page":"370-383","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":79,"title":["One Anastomosis\/Mini-Gastric Bypass (OAGB\/MGB) as Revisional Surgery Following Primary Restrictive Bariatric Procedures: a Systematic Review and Meta-Analysis"],"prefix":"10.1007","volume":"31","author":[{"given":"Mohammad","family":"Kermansaravi","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shahab Shahabi","family":"Shahmiri","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amir Hossein","family":"DavarpanahJazi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rohollah","family":"Valizadeh","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Giovanna","family":"Berardi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Antonio","family":"Vitiello","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7669-5115","authenticated-orcid":false,"given":"Mario","family":"Musella","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Miguel","family":"Carbajo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2020,10,28]]},"reference":[{"key":"5079_CR1","doi-asserted-by":"publisher","first-page":"97","DOI":"10.1016\/j.metabol.2017.12.010","volume":"79","author":"BT Phillips","year":"2018","unstructured":"Phillips BT, Shikora SA. 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