The mini gastric bypass, or single anastomotic gastric bypass, is an effective and well-established procedure that combines some of the features of sleeve gastrectomy and standard gastric bypass.
What is Mini Gastric Bypass?
The mini gastric bypass, or single anastomotic gastric bypass, is an effective and well-established procedure that combines some of the features of sleeve gastrectomy and standard gastric bypass. The upper part of the stomach is divided into a tube similar to the upper three-quarters of a sleeve and then joined into an intestinal loop.
Mini gastric bypass can be used as the primary weight loss procedure. It can also be used in patients who have previously had gastric band or tube surgery but have failed to lose weight or have had complications related to the band and have decided to undergo revision surgery.
How Mini Gastric Bypass Helps You Lose Weight?
- By reducing the feeling of hunger through brain signaling through altered gut
- By providing an earlier feeling of satiety and fullness when eating a meal resulting in a healthy portion size
- By skipping 150 to 200 cm of the upper part of the small intestine, reducing the amount of calories you get from the food
How is Mini Gastric Bypass Done?
Mini gastric bypass procedure is performed laparoscopically (keyhole surgery) under general anesthesia. Five small incisions (5 to 12 mm long) are made for insertion of keyhole surgical instruments. Using these instruments, the upper part of the stomach is stapled to form a thin tube (30ml to 50ml in size). The thin tube becomes the new, smaller stomach and is completely separated from the rest of the stomach. This stomach is then sutured to a loop of the small intestine, bypassing the first part of the intestine called the duodenum and about 150-200 cm of the intestine. The upper part of the small intestine and the rest of the stomach remain in the body. But it is no longer used for food digestion. In skilled hands, the surgery takes about 60 minutes to perform.
What Are the Long-Term Effects of Mini Gastric Bypass?
As with all medical procedures, results and experiences may vary from person to person. The long-term effects of any gastric surgery depend on the patient making the necessary changes in their lifestyle, especially regarding diet and exercise.
Two years after surgery, weight loss is 75-85% of excess body weight; 5 years after surgery, extreme weight loss is 70-75%.
Many diseases related to excess weight such as sleep apnea, type 2 diabetes, joint diseases, high blood pressure or polycysticover syndrome (PCOS) improve or disappear as a result of surgery.