A gastric sleeve operation is a form of weight-loss surgery wherein 65-85% of the patient’s stomach is surgically removed and omitted from the body, leaving the organ sleeve-like or cylindrical in shape. While a large portion of the stomach is removed, its function remains. This procedure is not reversible and is most commonly administered on patients who are classified as morbidly obese. The gastric sleeve is one of only a handful of weight loss surgery procedures which can be performed laparoscopically (or through small, minimally-invasive incisions) in patients who are extremely overweight.

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