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General Information

Banded Roux-en-Y Gastric Bypass (BRYGB) is a surgical procedure that can be performed by a miniinvasive (Video)surgical method. The procedure reduces food intake AND reduces the absorption of nutrients from the food. Absorption of nutrients is limited because part of the intestines is bypassed and not used. The volume of the stomach pouch by LBRYGB is between 15 and 25 ml. The junction between the stomach pouch and small bowel is controlled by a (restricted by a?) silastic ring (GaBP Ring). The alimentary limb (AL, green in the image) in LBRYGB is 120 – 150cm long, the biliopancreatic limb (BPL, pink in the image) consists of 50 cm of small intestine.

Hospitalisation Time

The procedure requires 2 nights stay in the hospital after the operation.

After Surgery

After surgery, the patient must follow special diets and vitamin intake to lose weight in a controlled manner.


• Very successful (50-70% of excess weight loss)
• Operation for patients who failed restrictive procedures like balloon, banding and sleeve gastrectomies
• Operation for sweet eaters
• Operation for patients with heartburn
• No dumping syndrome

Weight loss differences

• The influence of the silastic ring on the percentage of excess weight loss within the first year was between 81.3 and 73.5. After two years, the percentage ranged around 80%, and at 5-year follow-up an EWL of about 75% could be found.
• Only a slight weight regain of 2.5% or 5% is observed between the second and fifth postoperative year, whereas a weight regain of over 10% in the same period is reported in LCRYGB.
• The EWL after conventional GB reached 58.2% after five years in the best series. Bessler performed the first prospective study that directly compared the two operation methods.
• After the second or third postoperative year, the patient seems to adapt to the surgery and to suffer its side-effects in lower intensity, which brings a tendency for some recovery of lost weight. But weight gain is very slight compared to the conventional gastric bypass.