St. George Obesity & General Surgery

Gastric Sleeve

One of Sydney's Leading
Gastric Sleeve Team

What is Gastric Sleeve Surgery?

Sleeve gastrectomy, also known simply as gastric sleeve surgery, is a surgical weight-loss procedure in which a significant portion of the stomach is removed, leaving behind a smaller, sleeve-shaped stomach. 

Typically, about 70-80% of the stomach is removed, including the part that produces the hunger hormone ghrelin. This results in a smaller stomach that restricts the amount of food that can be eaten, leading to weight loss.


gastric sleeve

Am I ELIGIBLE for Gastric Sleeve Surgery?

  • If you have a body mass index (BMI) greater than 35
  • Or if your BMI is greater than 30 if you experience a weight-related illness
  • And if you have tried other methods of weight loss, such as dieting, without long-term success.

Why is Gastric Sleeve Surgery So Effective?

  • After surgery, the amount of food you could eat at one sitting will be reduced. Typically your “new” stomach will only be able to hold 200-300mls of volume when compared to a previous volume of 1500mls.
  • After surgery, you should also feel less hungry as the major part of the stomach that produces the hunger hormone ghrelin, has been removed.
  • Sleeve can initiate changes to your metabolism, gut bacteria, hormones and digestion contributing to your ability to lose weight

Read more evidence on Sleeve surgery here – https://link.springer.com/article/10.1007/s11695-023-06824-8

How Gastric Sleeve can Benefit You?

On average, patients after sleeve lose about 70% of their excess weight within the “golden time period of 12-18 months”

You should also experience resolution or significant improvement to weight related medical conditions like diabetes, sleep apnoea, high blood pressure, cholesterol levels just to name a few.

Sleeve surgery can give you the massive “kick start” that you need in gaining back control over your diet. Making healthy food choices and prioritizing protein becomes a necessity as the amount of food you can eat at one sitting is reduced. Losing significant amount of weight will also help ease the pressure on your joints, which will help motivate you in exercising more.

How do we perform gastric sleeve surgery

Here at St George Obesity Surgery, all bariatric operations are performed through key hole surgery (laparoscopic or robotic) under general aneasthesia.

To perform the operation, Dr Cheng will usually make 4-5 small incisions in the abdomen. Dr Cheng will carefully staple off and removes typically around 70-80% of the stomach. The remaining portion of the stomach is shaped like a sleeve or tube, hence the name.

The operation is generally a very safe and effective weight loss procedure for individuals who have been unable to lose weight through diet and exercise alone. However, like any surgical procedure, it carries risks and potential complications. It is essential for patients to thoroughly discuss the benefits and risks with Dr Cheng before deciding to undergo surgery.

Below is a video detailing how the surgery is done in a more visual sen

What Does The Evidence Say?

Why Choose Us for Your Gastric Sleeve Surgery?

At SGOS, we have helped thousands of patients in their weight loss journey and perform close to 250 sleeve surgeries a year. We are experienced in what we do and you can count on us getting you through surgery safely and achieving the best outcomes for you

Dr Cheng is an accredited Bariatric surgeon of excellence which means that he is not only well trained in all aspects of bariatric surgery but is also at the forefront of new techniques when it comes to weight loss management.

You can trust that we will be able to tailor management according to your situation so that you always get the RIGHT option for you

Here at SGOS, we can not stress enough the importance of long term follow up. Obesity is a chronic condition and what ever the surgery – sleeve vs bypass is just the beginning of your journey. This is why we are different from most other practices and are committed in providing you with life-long weight loss follow up and support. This includes yearly bulked bill consults with Dr. Cheng and our dietitian beyond your two year intensive bariatric follow up.

Our patient Journey – https://stgeorgeobesitysurgery.com.au/patient-information/the-patient-journey/

We understand the large financial implications of accessing surgery and bariatric care which is only made worse through testing times with the current economy. Just like you, we are frustrated that bariatric services are not more accessible through the medicare system.

This is why we are determined in providing you with the lowest cost in accessing bariatric care. You can find our Transparent Bariatric Program costs here – https://stgeorgeobesitysurgery.com.au/patient-information/cost/

Ready to Kick Start Your Weight Loss Journey?

Get in contact with us today