Bariatric Surgery Worldwide: Baseline Demographic Description and One-Year Outcomes from the Fourth IFSO Global Registry Report 2018

Richard Welbourn 1, Marianne Hollyman 2, Robin Kinsman 3, John Dixon 4, Ronald Liem 5, Johan Ottosson 6, Almino Ramos 7, Villy Våge 8, Salman Al-Sabah 9, Wendy Brown 10, Ricardo Cohen 11, Peter Walton 3, Jacques Himpens 12

Affiliations

01 March 2019

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doi: 10.1007/s11695-018-3593-1

Abstract

Background: Since 2014, the International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO) has produced an annual report of all bariatric surgery submitted to the Global Registry. We describe baseline demographics of international practice from the 4th report.

Methods: The IFSO Global Registry amalgamated data from 51 different countries, 14 of which provided data from their national registries. Data were available from 394,431 individual records, of which 190,177 were primary operations performed since 2014.

Results: Data were submitted on 72,645 Roux en Y gastric bypass operations (38.2%), 87,467 sleeve gastrectomy operations (46.0%), 14,516 one anastomosis gastric bypass procedures (7.6%) and 9534 gastric banding operations (5.0%) as the primary operation since 2014. The median patient body mass index (BMI) pre-surgery was 41.7 kg m2 (inter-quartile range: 38.3-46.1 kg m2). Following gastric bypass, 84.1% of patients were discharged within 2 days of surgery; and 84.5% of sleeve gastrectomy patients were discharged within 3 days. Assessing operations performed between 2012 and 2016, at one year after surgery, the mean recorded percentage weight loss was 28.9% and 66.1% of those taking medication for type 2 diabetes were recorded as not using them. The proportion of patients no longer receiving treatment for diabetes was highly dependent on weight loss achieved. There was marked variation in access and practice.

Conclusions: A global description of patients undergoing bariatric surgery is emerging. Future iterations of the registry have the potential to describe the operated patients comprehensively.

Keywords: Bariatric surgery worldwide; Demographic description; Global registry; IFSO.

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