Roux-en-Y Gastric Bypass
Gastric bypass reduces storage capacity of the stomach to approximately 5% of normal with ingested food bypassing approximately 95% of the stomach, the entire duodenum, and a small portion of the proximal jejunum (Fig. 14.4) (Laddu et al., 2011). Weight loss is typically thought to occur from malabsorption and dumping syndrome. However, malab- sorption, as measured by prealbumin and fecal fat, is not observed after the standard RYGB