Sleeve Gastrectomy – Banded and Conventional


What Is It?

The vertical sleeve gastrectomy, or sleeve gastrectomy, is a type of restrictive weight loss surgery. It causes weight loss by restricting the amount of food that a person can consume before feeling full.


How is it performed?

Conventional Sleeve Gastrectomy is a surgical procedure that can be performed by minimally invasive surgery(Laparoscopically or robotically). The procedure reduces the size of the stomach to about 10% of its original volume and results in a limited capacity of food intake. In sleeve gastrectomy, the left side of the stomach is surgically removed by cutting and stapling. This results in a new stomach which is roughly the size and shape of a banana.


Who can undergo this procedure?

The surgery is typically performed on patients who are too heavy to have other types of weight loss surgeries with the expectation that a second surgery will be performed once weight has been lost, or on individuals who do not suffer from severe co morbidities and are young.



  • It does not require disconnecting or reconnecting the intestines
  • It is technically a simpler operation than gastric bypass
  • It may be used as the first stage of a 2-stage operation.
  • The operation eliminates the portion of stomach (fundus) that produces the hormone ghrelin which stimulates hunger.
  • Vitamin and mineral supplementation maybe needed for a shorter duration as compared to gastric bypass.


  • Possibility of weight gain after a few years due to stretching of stomach muscles.
  • Possible late dilatation of stomach pouch
  • Leaks from the staple line of the newly formed stomach (1 in 1000 people)

What is a Banded Sleeve Gastrectomy?

A silastic (GaBP) ring of 7.5 cm diameter is wrapped around the upper part of the sleeve. Adding a silastic band to sleeve gastrectomy increases the success rate by preventing gastric tube dilatation. This allows in maintenance of weight loss in the long term.



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