Roux-en-Y Gastric Bypass

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gastric bypass

Roux-en-Y gastric bypass is the current gold standard procedure for weight loss surgery. In the Roux-en-Y gastric bypass procedures, a surgeon makes a direct connection from the stomach to a lower segment of the small intestine, bypassing the duodenum, and some of the jejunum. A 15 - 60 cc proximal gastric pouch is created using several staple lines. The proximal gastric pouch is drained into a segment of the jejunum and "bypasses" the distal stomach and duodenum. The proximal part of the divided intestine is then connected to the side of the intestine that was previously attached to the pouch. The roux limb is that part of the intestine between the stomach pouch and the connection to the proximal small intestine.

Roux-en-Y Gastric Bypass Weight Loss Surgery Benefits

  • One year after surgery, weight loss can average 65-80% of excess weight
  • After 10 years, 50-60% of excess body weight loss has been maintained by some patients.
  • Associated medical problems, such as diabetes, hypertension, sleep apnea, joint pain, and heartburn are improved or resolved in more than 90% of patients

Roux-en-Y Gastric Bypass Weight Loss Surgery Risks

  • Because the duodenum is bypassed, Poor absorption of iron, calcium, and vitamin B12 can result in deficiencies. Metabolic bone disease can also occur but all these problems can usually be prevented by vitamin and mineral supplementation but is especially important for patients who experience chronic blood loss or are prone to osteoporosis.
  • Dumping syndrome can occur as the result of rapid emptying of stomach contents into the small intestine which usually happens if too much sugar is consumed. While generally not considered to be a serious risk to your health, the results can be extremely unpleasant and can include nausea, weakness, sweating, faintness and, on occasion, diarrhea after eating.
  • The bypass portion of the stomach, duodenum and segments of the small intestine cannot be easily visualized using x-ray or endoscopy if problems such as ulcers, bleeding or malignancy should occur.