Roux-en-Y gastric bypass is an established treatment option for type 2 diabetes and obesity. However, the optimal lengths for the small intestinal limbs remain controversial with variation in practice. A longer biliopancreatic limb length of 150 cm (‘Long Limb’) was hypothesised to better improve glycaemia compared to the standard Roux-en-Y gastric bypass with a biliopancreatic limb of 50 cm (‘Standard Limb’). The aim of the trial was to evaluate the short-term mechanistic outcomes and the long-term clinical outcomes and safety of Long Limb versus Standard Limb Roux-en-Y gastric bypass.
