Omega loop bypass (Mini-gastric bypass)
By completely dividing the upper part of the stomach a small gastric pouch is formed, which results in a drastic reduction of the gastric volume. Further a bypass of the first section of the small bowel is created.
The small gastric pouch restricts the oral intake and additionally the small bowel bypass reduces the absorption of nutrients (malabsorption). The Omega loop bypass (OLB) requires just one joint in between bowels compared to the Roux-En-Y gastric bypass, which requires two joints.
Hospital stay: about 2-5 days
Weight loss: about 70 % of excess weight in 5 years. (Please be aware that extent of weight loss is very individual and cannot be guaranteed.)
The OLB usually leads to a rapid weight loss. This operation can be applied in eating disorders such as binge eating (uncontrolled over eating) or sweet eating (preferably high-calorie sweets or beverages such as fruit juices, soft drinks). The OLB induces hormonal changes, which improve the blood sugar regulation and it therefore often cures diabetes or at least significantly reduces the required medication. The OLB occasually causes biliary reflux from the small bowel into the stomach. If it is symptomatic the reflux can be treated by converting the OLB into a RYGB. Independently of any preexisting diabetes the intake of carbohydrate-rich food after an OLB can cause temporary discomfort, dizziness and sweating (dumping)