There are several variations of a Gastric Bypass. The most common procedure in the UK is the Roux-en-Y, also known as RYGB. It is a combination of restrictive and malabsorptive procedures, therefore has a two-way weight reducing effect.
A small pouch is created by stapling off a section of the upper part of the stomach.
Below the staple line the stomach will remain but no food will enter here.
The stomach will still produce gastric juices and enzymes of the small intestine, limiting the absorption of calories from food.
Gastric bypass surgery operation takes approximately 2 hours, with 2-3 nights in hospital.
The attraction to this weight loss procedure is that it is considered to be permanent. Weight loss is experienced from the day of surgery and there are no regular adjustments required. It is however, a higher risk procedure.
Weight loss is dramatic at first and then stabilises to 2-3lbs per week.
You must take daily nutritional supplements for the rest of your life and vitamin B12 injections are also recommended every 3 months to prevent Pernicious Anaemia.
Overeating and poor eating habits can still jeopardise your success and you are also likely to experience 'Dumping syndrome' if you consume foods that are high in sugar and fat content.
The side effects of dumping syndrome include diarrhoea, stomach cramps, sweating and dizziness.
Like any surgical procedure there are possible risks and complications. They are rare and everything possible will be done to prevent them from occurring.
The most common complications with gastric bypass surgery are: