Impact of Roux-en-Y Gastric Bypass Limb Length on HbA1c Levels in Obese Individuals with Type 2 Diabetes

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The MetaSurg study assessed the impact of Roux-en-Y gastric bypass limb lengths on HbA1c levels in obese individuals with type 2 diabetes.
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Participants included adults with a BMI of 27 to 60 kg/m2 and confirmed type 2 diabetes, with specific inclusion and exclusion criteria.
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The study compared two surgical arms: long alimentary limb (AL) versus long biliopancreatic limb (BPL) RYGB procedures.
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The primary endpoint was HbA1c levels at 12 months, with secondary endpoints including diabetes remission rates and various anthropometric measures.
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The trial was conducted in accordance with ethical guidelines and aimed to provide insights into optimizing RYGB for diabetes management.

Obesity Surgery (Springer)

by Lena Seidemann, Roland Morgenroth, Yusef Moulla, Undine Gabriele Lange, Orestis Lyros, Matthias Blüher, David Petroff, Christiane Prettin, Norbert Köhler, Arne Dietrich
April 21, 2026

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