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Mini Gastric Bypass / Single Anastomosis Gastric Bypass

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Mini Gastric Bypass / Single Anastomosis Gastric Bypass

Mini Gastric Bypass / Single Anastomosis Gastric Bypass

MGB is very successful (50-70% excess weight loss) as a primary weight loss procedure, especially in type II DM. It can be used on patients who have failed previous restrictive procedures, sweet eaters, and patients with heartburn. It has a lower complication rate than RNYGB, and is also completely reversible. In addition, it can also be converted to a RNYGB or a VSG at a later stage if required.

What Is It?

The mini gastric bypass is also a restrictive and malabsorptive procedure that 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.

How is it performed?

A stomach sleeve is created and separated from the rest of the stomach which is retained in the body (like the RNYGB). The volume of the stomach sleeve after MGB is between 70-90 ml. The small intestine is anastomosed in continuity without disconnecting it (unlike in RNYGB) to the newly created stomach sleeve.

Advantages

  • Very successful (50-70% of excess weight loss) as a primary weight loss procedure especially in type II DM
  • Operation for patients who failed restrictive procedures like balloon, banding and sleeve gastrectomies
  • Completely reversible surgery if done as a first procedure and also convertible to RNYGB or LSG at a later stage if required

Disadvantages

  • Conventional upper gastroscopy of duodenum and remnant stomach is not possible
  • Lifelong supplementation of fat soluble vitamins is usually required
  • Increased risk of marginal ulceration and biliary gastritis
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