In this procedure, a hollow band made of special material is placed around a small portion of the upper stomach, creating a small pouch and a narrow passage, or stoma, into the larger remainder of the stomach. The band is then inflated with a saline (salt) solution through a reservoir implanted beneath the skin during surgery. The band can be tightened or loosened over time to change the size of the passage by increasing or decreasing the amount of saline solution. When a patient eats, the pouch, or “new” stomach, fills quickly with solid food and empties slowly to relieve hunger and produce a feeling of fullness. Overeating results in pain or vomiting.
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