This is the Scientific Surgery Archive, which contains all randomized clinical trials in surgery that have been identified by searching the top 50 English language medical journal issues since January 1998. Compiled by Jonothan J. Earnshaw, former Editor-in-Chief, BJS

Efficacy and safety of one anastomosis gastric bypass versus Roux-en-Y gastric bypass for obesity (YOMEGA): a multicentre, randomised, open-label, non-inferiority trial. Lancet 2019; 393: 1299-1309.

Published: 21st June 2019

Authors: Maud R, Espalieu P, Pelascini E, Caiazzo R, Sterkers A, Khamphommala L et al.

Conclusion

In this study that included 253 procedures, mean excess BMI weight loss was similar after the one anastomosis method (-87.9 per cent) compared to standard Roux-en-Y (-85.8 per cent). There were higher rates of diarrhoea, steatorrhoea and nutritional complications after the new procedure.

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