Gastric Sleeve Surgery

Gastric sleeve surgery, or sleeve gastrectomy, is surgery for weight loss that involves removal of a large part of the stomach. After the surgery, the person feels full after eating a small amount of food.


What is Gastric Sleeve Surgery​?

Sleeve gastrectomy (“gastric sleeve”) is a common weight loss operation. The outer part of the stomach is removed and the shape of the stomach is changed from a sac to a long narrow tube (sleeve). The gastric volume is reduced from approximately 2L to 100-150 mL.

The main effect of the gastric sleeve is thanks to the reduced volume of the stomach and hence only a small amount of food is need to create a feeling of ‘fullness’ and satiety. Using the gastric sleeve as a tool for portion control allows the committed patient to eat 3 small meals per day and feel satisfied, unlike being on a diet. The subsequent reduction in caloric intake will result in weight loss. Good food choices in addition to regular exercise are also necessary to optimise outcomes.

Most patients who undergo the gastric sleeve operation lose 50-75% of their excess body weight over 12-24 months. 

Recent studies have shown that the top fundus part of the stomach, which produces the hunger hormone Ghrelin and is removed during the gastric sleeve sleeve operation, results in a loss of feeling hungry. Although, this effect does lessen with time for some patients.

Increasingly, the gastric sleeve has been performed as a stand-alone procedure with acceptable results (eg: excess weight lost of 50 – 75%). The main surgical complications are bleeding and leakage from the cut edge of the remaining stomach (reported: 1-3 %).

A recent positional statement from ASMBS (American Society for Metabolic and Bariatric Surgery) has accepted the gastric sleeve as a stand-alone procedure with a risk/benefit profile between laparoscopic adjustable gastric banding and that of the gastric bypass procedure.

When to consider Gastric Sleeve Surgery​​​​?

Most patients who undergo the gastric sleeve operation lose 50-75% of their excess body weight over 12-24 months.

Cost of Surgery

Insured patient = $4,376 minus $876 Medicare rebate = $3,500 out of pocket (*all costs included)

Uninsured patient = $16,993 minus the $657 Medicare rebate = $17,650 out of pocket (*all costs included)

Specialist weight loss surgeon

Dr Govind Krishna


Dr Govind Krishna is an expert is weight loss surgery with 20+ years of experience performing gastric surgery. He has performed over 2,000+ weight loss and gastric operations and offers affordable surgical solutions for those wishing to consider weight loss surgery.

He offers an empathetic, non-judgemental approach to weight loss management and his mission is to help his patients restore their health and move on with their lives.

He holds a Master of Surgery (MS) degree specialising in gastric surgery and is a Fellow of the Australasian College of Surgeons (FRACS). Dr Krishna consults across South-Western Sydney at Campbelltown, Fairfield, Liverpool and Hurstville.

Learn more about Dr Krishna’s significant weight loss surgical experience below.

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