The laparoscopic Roux-en-Y gastric bypass is a restrictive and malabsorptive procedure. Food enters a smaller stapled stomach (pouch) about the size of your thumb, and bypasses the rest of the stomach and the upper part of the small intestine. This significantly limits the amount of food a person can eat in one meal and you will absorb fewer nutrients and calories. However, there is risk for some nutritional deficiencies if no changes are made on the diet and/or noncompliance with the recommended lifelong nutritional supplementation.
The laparoscopic Roux-en-Y gastric bypass is considered the standard of care by many bariatric surgeons. It has been performed for over 50 years and there are volumes of information available about the risks, benefits and proper indications for its use. The safety of gastric bypass has improved significantly due to the advancement in the technique and technology of laparoscopic surgery.
Depending on the starting BMI and compliance, the patient may expect to achieve a long-term weight loss of 70-75 percent of their excess weight. Because approximately 30 percent of the patient’s small bowel is bypassed with this procedure it is necessary to supplement a healthy diet with supplements to ensure that the patient’s metabolic needs are being met.
Gastric bypass advantages
Gastric bypass disadvantages
Gastric bypass recovery timeline
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January 21, 2020