Gastric Bypass Surgery
One of the most common bariatric surgeries in Delhi is gastric bypass, which is a combined procedure which causes both restriction of food intake as well as malabsorption. It is regarded as the gold standard bariatric procedure and was the most commonly performed bariatric surgery until recently sleeve gastrectomy took this place. Long term data of 15 years has shown excess weight loss more than 80% along with excellent remission of comorbidities.
In this procedure, the upper part of the stomach is converted into a small pouch which decreases the amount of food which can be taken at one time. This pouch is then connected directly to the mid part of the small intestine. This new anatomy bypasses the lower part of stomach and the first part of the small intestine which delays the mixing of food with the digestive enzymes and hence results in malabsorption.
The combined effect of restriction and malabsorption results in rapid and sustained weight loss. The direct contact of food with the small intestine results in release of hormones which increase the metabolic rate and burn fat. This not only decreases body weight but also helps in remission of metabolic diseases like diabetes and hyperlipidemia.