WEIGHT LOSS SURGERY-GASTRIC BANDING
Restrictive weight loss surgery works by reducing the amount of food consumed at one time. The theory is simple; due to the restriction created, you feel satiated with small amounts of food and because of a smaller outlet, food stays in the stomach for a longer time. The net result is - a reduction in daily caloric intake without a feeling of deprivation.
Entails laparoscopic implantation of a Silastic band around the stomach just below the gastro-esophageal junction to section off a small portion called as stomach pouch creating an hour-glass effect. A small outlet, about the size of a pencil eraser, is left at the bottom of the stomach pouch.
The hour glass configuration only constricts the upper stomach thus acting as a pure restrictive operation. Since the outlet is small, food stays in the pouch longer and one also feels satiated for a longer time.
In a cooperative and compliant patient, the reduced stomach capacity, along with behavioral changes, can result in consistently lower caloric intake and consistent weight loss. Patients who see the best results from a restrictive procedure are those who learn to eat slowly, eat less, and avoid drinking too many caloric fluids, particularly carbonated beverages. If the patient fails to follow these guidelines, they can stretch the stomach pouch and/or the stoma outlet and defeat the purpose of the surgery. The effectiveness of a restrictive procedure is reduced by constant snacking or by drinking high-calorie, high-fat liquids.