Weight loss and malnutrition after conversion of the primary Roux-en-Y gastric bypass to distal gastric bypass in patients with morbid obesity

摘要

Background: After Roux-en-Y gastric bypass (RYGB), 15% to 35% of patients fail to lose sufficient weight. Distalization of the limbs of the RYGB (D-RYGB) with shortening of the common channel (CC), has been used to induce additional weight loss. However, this may increase the risk of malnutrition.