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Weight loss surgery types

Weight loss surgery falls into three basic categories: restrictive surgery, malabsorptive surgery and mixed type surgery.

Restrictive surgery

Operations that reduce the stomach size or obstruct the pathway of food are known as restrictive surgery because they restrict the amount of food the stomach can hold. When you feel full, you are more likely to have reduced feelings of hunger and will no longer feel deprived. Restrictive weight loss surgery works by reducing the amount of food consumed at one time. It does not, however, interfere with the normal digestion of food.

This type of procedure includes:

  • Vertical banded gastroplasty
  • Adjustable Gastric Banding
  • Sleeve Gastrectomy
  • Gastric Plication

Malabsorptive surgery

Malabsorptive procedures alter digestion, thus causing the food to be poorly digested and incompletely absorbed so that it is eliminated in the stool partially undigested.

This type of procedure includes:

  • Biliopancreatic diversion.

Mixed type surgery (Restrictive and Malabsorptive)

These operations combine stomach restriction with a partial bypass of the small intestine. These procedures create a direct connection from the stomach to the lower segment of the small intestine, literally bypassing portions of the digestive tract that absorb calories and nutrients. A combination of restrictive and malabsorptive procedures tend to produce more weight loss than either procedure does on its own.

This type of procedure includes:

  • Roux-en-Y Gastric Bypass (RYGBP)
  • Mini Gastric Bypass
  • Sleeve gastrectomy with duodenal switch