Roux-en-Y Gastric Bypass

The Roux-en-Y Gastric Bypass combines restrictive and malabsorptive procedures and comprises 75 percent of bariatric surgical procedures. 

  • During the procedure, stapling is used to create a small, upper-stomach pouch that restricts the amount of food able to be consumed. 
  • A portion of small intestine is bypassed and connects the new stomach pouch with the remainder of the small intestine. 
  • This bypassed limb delays food from mixing with digestive juices to avoid complete caloric absorption. 
  • The malabsorption obtained after the gastric bypass is not to the extent as after true malabsorption operations (biliopancreatic bypass/duodenal switch). 
  • Weight loss is achieved by drastically limiting the amount of food or liquids that a patient can ingest.