Bariatric Surgery: Surgical Procedures
Most Procedures are done using minimally invasive (laparoscopic) surgery, which can help decrease hospital stay time and speed up your recovery.
Gastric Bypass
This procedure, also called a Roux-en-Y gastric bypass, is one of the most commonly
performed procedures for obesity in the United States. First, a small stomach pouch is created by stapling part of the stomach together or by vertical banding. This limits how much you can eat. Next, a Y-shaped section of the small intestine is attached to the pouch to allow food to bypass the duodenum as well as the first portion of the jejunum. This causes reduced calorie and nutrient absorption.
Laparoscopic Gastric Banding
This is a safe and effective way to achieve and maintain a healthier weight—without cutting or stapling your stomach. The procedure involves placing an inflatable band around the upper portion of the stomach to restrict the amount of food you can consume. This minimally invasive procedure is adjustable and reversible.
Sleeve Gastrectomy
Sleeve gastrectomy involves surgically removing the left side of the stomach,
leaving a much smaller stomach about the size and shape of a banana. The stomach that remains is larger than a gastric bypass pouch, but much smaller than the normal human adult stomach. This causes restriction and a possible decrease in appetite due to gut hormones released by the removed fundus. The pylorus is preserved, so most patients should not experience "dumping syndrome." The procedure has no malabsorption and in theory, less nutritional deficiancies, as there is no bypassed intestine.
Duodenal Switch with Biliopancreatic Diversion
Malabsorptive operations, such as biliopancreatic diversion with duodenal switch, restrict both food intake and the amount of calories and nutrients the body absorbs.
In this procedure, a larger portion of the stomach is left intact, including the pyloric valve that regulates the release of contents from the stomach to the small intestine. The duodenum is divided near this valve and small intestine divided as well.
The portion of the small intestine connected to the large intestine is attached to the short duodenal segment next to the stomach. The remaining segment of the duodenum connected to the pancreas and gallbladder is attached to this limb closer to the large intestine.
Where contents from these two segments mix is called the common channel, which dumps into the large intestine.