- It is performed under general anesthesia and with a minimally invasive laparoscopic approach (4-5 small incisions from 3 mm to 10 mm)
- The classic intervention consists in the creation of a small gastric pocket that does not communicate with the rest of the stomach, but is directly connected to the small intestine at a variable distance from the duodenum.
- The intestinal tract which is thus excluded from the transit of food, called the “bilio-pancreatic tract”, is in turn joined at a variable distance from the stomach with the “alimentary tract” to form the “common tract”.
- Most of the stomach and duodenum are therefore completely excluded from the transit of food.
- The intervention does not result in the removal of any part of the intestine or stomach and is to be considered absolutely reversible.
In the mechanism of weight loss (weight loss) different mechanisms affect: the reduction of the quantity of food introduced so it is sufficient to introduce a small quantity of food to obtain a sense of satiety, the arrival of freshly chewed food in a section of the intestine who was not used to receiving it in this form, leads to a reduction in appetite and an early satiety of varying degrees.