Gastric sleeve/Sleeve gastrectomy

How does the procedure work?

The size of the stomach is permanently reduced by approximately 75% but the digestive system remains unaltered and the stomach continues to function normally. The stomach is vertical, with the new stomach taking the shape of a narrow sleeve. This effectively restricts the stomach's capacity and so limiting the amount of food that can be eaten.

How long will I be in hospital?

Surgery usually takes 1-2 hours and most patients stay in hospital for 2-3 days.

How much weight will I lose?

With the gastric sleeve there are fewer restrictions on the type of foods you can eat following surgery. Results vary from patient to patient and a lot will depend on how you change your lifestyle and eating habits but on average sleeve gastrectomy patients lose 45% of their excess body weight a year after surgery.

What are the risks and side effects specific to a gastric sleeve?

You may have pain, bruising and swelling around your wound. Some patients feel sick or are sick after eating, particularly if you try to eat too much.

How long does it take to recover after surgery?

Most patients can return to work 2-3 weeks after surgery but if you work is more strenuous it may be a little longer.


Results from gastric sleeve surgery, Southampton

The graph above shows percentage excess weight loss. An example to illustrate what this means would be someone weighing 20 stone whose ideal weight is 10 stone, they would have 10 stone of excess weight, 100%. If they lose 50% of their excess weight they would then be 15 stone. This is a useful way to compare results after bariatric procedures because it then does not matter how much people weigh to start with or how much weight they lose, it's all relative to the individual.