Bariatric surgery commonly known as weight-loss surgery is done on patients who are extremely obese and would not achieve weight loss through conventional diet plans or exercise.
In this surgery, a Gastric Band is implanted on the stomach to reduce its size or a portion of stomach is removed surgically or by resecting and re-routing the small intestines to a small stomach pouch (Gastric Bypass Surgery).
Bariatric surgery is usually considered for patients who have BMI of over 40kg/m2 and have not responded to the diet and exercise plan and are also suffering from other cardiovascular risk factors.
The long term results have shown these kind of surgeries to be helpful in weight loss and recovery from diabetes and other such cardiovascular risks.
These surgeries are now very simple surgeries and usually done laparoscopically.