Types Of Gastric Bypass Surgeries And Surgery Risk

Types Of Gastric Bypass Surgeries

• Roux-en-Y gastric bypass (RGB)
  This procedure is also known as Roux-en-Y anastomosis or Roux-en-Y gastrojejunostomy.
  It is performed by stapling part of the stomach together or by vertical banding to created a small pouch first. Then, a Y-shaped section of the small intestine is attached to the pouch to allow food to bypass the duodenum as well as the front segment of the jejunum. This type of gastric bypass operation is most commonly performed.
• Extensive gastric bypass (biliopancreatic diversion)
  A procedure that removes portions of the stomach and connects the small pouch directly to the final section of the small intestine, bypassing the duodenum and jejunum. This type of gastric bypass operation is not widely performed because of the high risk of nutritional deficiencies.

Surgery Risks

• The bypass route may cause contents in the stomach to move out of the stomach too quickly through the small intestine which can cause faintness, weakness, nausea, sweating and sometimes diarrhea after eating.
• The pouch may stretch and return to its original size.
• The staples and the band can break down and lose their grip.
• Leakage of stomach contents into the abdomen. This is dangerous because the stomach acid can eat away other organs.
• Nutritional deficiencies.
• Suture tears and leaks.
• A person undergoing gastric bypass surgery is at risk of pneumonia, infection and pulmonary embolism during surgery.

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