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Proximal Roux-en-y Gastric Bypass

A small (roughly 10-15mL, less than half an ounce) stomach pouch is created by dividing the stomach vertically. This pouch is connected directly to the intestine which is rerouted so that the food stream bypasses the stomach, duodenum, and the upper intestine. The digestive juices are diverted from the food stream by about 5 feet (150cm) or roughly one-fourth of the upper small intestinal length, thereby bringing about a mild reduction in calorie absorption.  Since only a small amount (roughly a fourth) of the intestine is bypassed, the risk of malnutrition is minimal. Most patients report feeling full after eating about 2 oz of solid food. In this type of operation neither the stomach nor any of the intestines is removed.

Resectional Proximal Gastric Bypass

This is a specialized type of proximal gastric bypass, where the bypassed stomach is removed. This may be necessary in patients whose stomach is diseased.


About 70% EWL is reported after this operation.

Improvement or Resolution of several co-morbidities especially diabetes.
Patients must avoid sugars to prevent Dumping syndrome - rapid assimilation of sugars from the food directly into the intestine causes a reaction characterized by flushing, palpitations, sweating, and abdominal cramps
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