IFSO Update Position Statement on One Anastomosis Gastric Bypass (OAGB)

Maurizio De Luca, Giacomo Piatto, Giovanni Merola, Jacques Himpens, Jean Marc Chevallier, Miguel A. Carbajo, Kamal Mahawar, Alberto Sartori, Nicola Clemente, Miguel Herrera, Kelvin Higa, Wendy A. Brown, Scott Shikora

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48 Citations (Scopus)


The International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO) issued a position statement on the role of one anastomosis gastric bypass (OAGB) in the field of bariatric/metabolic surgery in 2018 De Luca et al. (Obes Surg. 28(5):1188-206, 2018). This position statement was issued by the IFSO OAGB task force and approved by the IFSO Scientific Committee and IFSO Executive Board. In 2018, the OAGB task force recognized the necessity to update the position statement in the following 2 years since additional high-quality data could emerge. The updated IFSO position statement on OAGB was issued also in response to inquiries to the IFSO by society members, universities, hospitals, physicians, insurances, patients, policy makers, and media. The IFSO position statement on OAGB has been reviewed within 2 years according to the availability of additional scientific evidence. The recommendation of the statement is derived from peer-reviewed scientific literature and available knowledge. The IFSO update position statement on OAGB will again be reviewed in 2 years provided additional high-quality studies emerge.

Original languageEnglish
Pages (from-to)3251–3278
Number of pages28
JournalObesity Surgery
Issue number7
Publication statusPublished - Jul 2021


  • Bariatric surgery
  • IFSO position statement
  • OAGB update
  • Systematic review

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