Gastric bypass surgery

This is the most popular weight loss operation in the world. A small gastric pouch is made by dividing off a small part of the stomach just below the gullet and a loop of the small intestine is joined to this. The remaining part of the stomach, along with the duodenum and first part of the small intestine is joined back into the system further downstream. The operation is usually performed laparoscopically (by keyhole surgery) and takes around an hour. Post-operative stay is usually 2 days.

The small gastric pouch restricts the amount of food you can eat at one sitting and the “re-plumbing” of your intestines reduces your appetite and affects digestion to reduce the amount of energy that the body takes from food eaten. It also has various metabolic effects and is known to dramatically improve Type 2 diabetes, blood pressure and cholesterol levels such that many patients can get off their medications for these conditions altogether.

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