This procedure is a restrictive procedure that changes the shape and size of the stomach. The surgeon removes approximately two-thirds of the stomach; thus, the stomach is reshaped into a long tube, or “sleeve.” After the procedure, the stomach is about the size and shape of a banana and resembles a sleeve.

​The procedure:

  • restricts food intake by allowing only a small amount of food to be consumed in a single sitting, providing a quicker sense of fullness and decreased appetite

  • does not require the surgeon to implant a foreign body such as the band used in gastric banding

  • decreases the secretion of the hormone ghrelin, which is responsible for the feeling of satiety (fullness)

  • initially decreases the body weight of the severely obese patient to prepare this patient for a staged procedure or other surgery at a later time

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