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Restrictive Gastroplasty & Bariatric Gastric Banding OperationsWeight Loss Surgery 2.Types of Gastrointestinal Weight Loss SurgeryThere are several types of restrictive and malabsorptive operations. Each one carries its own benefits and risks. Restrictive Weight Loss Surgical OperationsRestrictive operations serve only to restrict food intake and do not interfere with the normal digestive process. To perform the surgery, doctors create a small pouch at the top of the stomach where food enters from the esophagus. Initially, the pouch holds about 1 ounce of food and later expands to 2-3 ounces. The lower outlet of the pouch usually has a diameter of only about 3/4 inch. This small outlet delays the emptying of food from the pouch and causes a feeling of fullness. As a result of this surgery, most people lose the ability to eat large amounts of food at one time. After an operation, the person usually can eat only 3/4-1 cup of food without discomfort or nausea. Also, food has to be well chewed. Restrictive operations for obesity include adjustable gastric banding (AGB) and vertical banded gastroplasty (VBG). As a result of this surgery, most people lose the ability to eat large amounts of food at one time. After an operation, the person usually can eat only 3/4-1 cup of food without discomfort or nausea. Also, food has to be well chewed. Restrictive operations for obesity include adjustable gastric banding (AGB) and vertical banded gastroplasty (VBG). Adjustable Gastric Banding - LapBand®In this procedure, a hollow band made of special material is placed around the stomach near its upper end, creating a small pouch and a narrow passage into the larger remainder of the stomach (see figure 2). Figure 2. Weight Loss Surgery - Adjustable Gastric Banding (AGB) - LapBand®
In this procedure, commonly known as the LapBand®, a silicone elastomer band is placed around the upper part of the stomach to create a small stomach pouch which can hold only a small amount of food. The lower, larger part of the stomach is below the band. These two parts are connected by a small outlet created by the band. Food will pass through the outlet (“stoma” in medical terms) from the upper stomach pouch to the lower part more slowly, and one will feel full longer. The diameter of the band outlet is adjustable to meet individual needs, which can change as one loses weight. Weight Loss Surgery - Adjustable Gastric
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