Bariatric Surgical Procedures

An overview on the various types of procedures available

Why not just diet?

Randomised controlled trials have shown that surgery results in greater weight loss than diets. This weight loss is maintained over a longer period when compared with even the best of diets.

Importantly, studies have shown that mortality (risk of dying) is significantly reduced in patients who undergo surgery for weight loss when compared with those who don’t.


Surgical procedures for weight loss are; Restrictive, Malabsorptive, or a combination of both.

Procedures such as the Gastric Band and the Gastric Sleeve (Sleeve Gastrectomy) are purely restrictive, whereas the Gastric Bypass (both Roux en Y and Single Anastamosis Bypass) operations are a combination.

Choosing the right Bariatric procedure for you.

Dr Crawford will explain the procedures, and help select the one that is best for you.

Watch this video where Dr Crawford explains the different procedures.

Click the images below to learn more about the procedure

Comparison Criteria
  • Procedure
  • Severe complications
  • Reversibility
  • Reflux
  • Stomach Ulcer
  • Nutritional Issues
  • Diabetes Control
Gastric Sleeve
  • Restrictive
  • Rare (~1.5%)
  • No
  • Around 30%
  • Very rare
  • Very rare
  • Good
Mini Gastric Bypass
  • Restrictive and Hormonal
  • Rare (~2.5%)
  • Yes (but big surgery)
  • Around 5%
  • Around 4%
  • Rare
  • Best