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Mini Gastric Bypass

What is Mini Gastric Bypass?

Mini Gastric Bypass is a modification of the Roux-En-Y Gastric Bypass. whereby only one connection or anastomosis is performed. This is why procedure is also known as Single Anastomosis Gastric Bypass (SAGB) or One Anastomosis Gastric Bypass (OAGB).

This makes the procedure simpler, reduces operating time and minimises complications. Studies have shown that the weight loss achieved is similar to Roux-En-Y Gastric Bypass with lower complications.

How is Mini Gastric Bypass performed?

This procedure is similar to the Roux-En-Y Gastric Bypass except that there is only one connection or anastomosis and that the bypassed length of small bowel is slightly longer that RNY gastric bypass (up to 200cm).

What are the advantages of Mini Gastric Bypass Surgery?

There is less “re-routing” of the small intestine therefore simpler and quicker to perform, less risk of complications and has similar weight loss results as Roux-En-Y Gastric Bypass. This is why this procedure is gaining popularity given its safety, long term efficacy and benefits, especially in patients with Type 2 Diabetes Mellitus.

What are the risks and complications of Mini Gastric Bypass

  • Risk of severe “bile reflux” or heartburn can result.
  • Leakages from anastomosis or staple line similar to other weight loss procedures.
  • Nutritional Deficiencies and side-effects similar to Roux-En-Y Gastric Bypass.
  • Stricture or narrowing of the anastomosis
  • Ulcers formation
  • Deep Vein Thrombosis (DVT) where ablood clot in the deep leg veins and/or pulmonary embolism (PE)
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