Bariatric Surgery

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What is Bariatric Surgery?

It is a therapeutic as well as a weight loss procedure, performed surgically and it has 3 types: Gastric Banding, Gastric Bypass and Gastric Sleeve. Many people simply cannot loose weight or maintain it with proper diet and exercise. Bariatric Surgery helps people who have difficulty losing weight by traditional methods.


Bariatric surgery is known to be the most effective treatment for morbid obesity and for people with a body mass index over 40.

Each of the three types is suitable for different criterion and purposes :

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1. Gastric Sleeve :

Gastric sleeve surgery involves permanently removing a large portion of the stomach, anywhere from 60% to 85% of the total stomach. The portion left behind is a slim tube or “sleeve” that will serve as your new stomach. It achieves weight loss results by restricting the amount of food that your body is physically able to take in.


It is different from other surgical procedures as it preserves the nerves to the stomach and its outlet (pylorus) thus maintaining the functions of the stomach while at the same time reducing its volume.

2. Gastric Bypass :

Gastric bypass surgery is used to treat morbid obesity which is defined as having a Body Mass Index greater than 40. Gastric bypass is a weight loss surgery that involves both restrictive and malabsorptive (decreasing absorption) technique to achieve weight loss.

It consists of the creation of a smaller thumb-sized pouch derived from the upper stomach, while at the same time bypassing the remaining larger portion of the stomach. This restricts the quantity of food that can be eaten and in turn lowers the possible caloric intake.

3. Gastric Banding :

Gastric banding or laparoscopic adjustable banding is a bariatric surgery procedure that uses an adjustable belt placed around the upper portion of the stomach. This band is made out of silicone and is designed to constrict the size of the stomach and the amount of food that can be held in the stomach. At the same time, it slows down the passage of food to the intestines which helps signal to the brain that the stomach is full. The band is filled with saline which can be increased or decreased based upon your needs and your doctors recommendations. A small port is accessed near the surface of the skin that your doctor can then add or remove saline through. Adding saline tightens the band and shrinks the size of the stomach pouch that can accept food. This should make you feel fuller, quicker and decrease the appetite and as a result help you lose weight.