Gastric Bypass

Gastric Bypass at Park Hill Hospital

What is a gastric bypass?

Gastric bypass is a restrictive and malabsorptive weight loss surgery procedure. It restricts the amount of food you can eat and reduces the number of calories (and nutrients) you absorb from food.

There are a number of variations of bypass surgery. The most popular in the UK is called the Roux-en-Y bypass (RYGB). The Roux-en-Y bypass reduces your stomach size and shortens your digestive system.

Related Treatments

Gastric Band

Adjustable gastric banding / gastric bands (sometimes known as a lap band) is a restrictive Bariatric surgerical procedure. A silicone band is placed around the upper part of the stomach, creating a small pouch above the band, that is about the size of a golf ball. This forms a large pouch below the band.

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Gastric Sleeve

Gastric sleeve surgery is a restrictive procedure only. Two thirds of the stomach is resected and removed, leaving a smaller stomach in the shape of a sleeve. The portion of the stomach removed produces a hormone that stimulates appetite and hunger. Removing this portion of stomach results in a significant reduction in appetite.

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Gastric Balloon

For many patients with a BMI (body mass index) of 27 - 35 surgery is not always available or recommended according to the NICE (National Institute of Clinical Excellence) guidelines, as patients with a lower BMI do not normally qualify for weight loss surgery. The gastric balloon is a soft, expandable intragastric (inside the stomach) device that is temporarily inserted into the stomach.

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