Gastric Sleeve Surgery in Sydney

Gastric sleeve surgery, also known as sleeve gastrectomy, is a surgical weight loss procedure that involves removing a significant portion of the stomach to create a smaller, banana-shaped stomach. This procedure aims to help individuals with obesity lose weight by restricting the amount of food they can consume and altering their metabolism.


The Procedure

During the surgery, your surgeon removes approximately 80-85% of the stomach, leaving behind a smaller, tubular-shaped stomach resembling a sleeve. This reduction in stomach size significantly limits the amount of food that can be eaten in one sitting, leading to reduced caloric intake.

Mechanism of Action

Gastric sleeve surgery works through two main mechanisms:

  1. Restriction: The smaller stomach restricts the amount of food a person can eat, leading to a feeling of fullness with smaller portions.
  2. Hormonal Changes: The removal of a part of the stomach can lead to changes in gut hormones that regulate hunger, appetite, and metabolism. This can contribute to reduced hunger and improved satiety (feeling ‘full’).

Weight Loss Expectation

Gastric sleeve surgery can result in significant weight loss. The restriction in stomach size makes patients feel satiated from eating far less. Patients can expect to lose 60-70% of their excess weight within the first year post-surgery. The exact amount can vary based on individual compliance with dietary and lifestyle changes.


Many patients achieve substantial and sustained weight loss after the procedure. Other important improvements include:

  • Improvement of obesity-related health conditions: Weight loss resulting from the surgery can lead to improvements or resolution of conditions such as type-2 diabetes, high blood pressure, sleep apnoea, and joint pain.
  • Enhanced quality of life: Weight loss can improve mobility, self-esteem, and overall well-being.

Other potential benefits of a gastric sleeve include eliminating gastroparesis, which is a condition of delayed gastric emptying.

Am I a Candidate?

To be eligible for gastric sleeve surgery, patients are put through a thorough pre-surgery evaluation, including medical and psychological assessments to determine their suitability for surgery. A successful outcome require significant lifestyle changes, including adopting a healthy diet, regular exercise, and long-term follow-up with medical professionals.

Most patients who undergo gastric sleeve surgery meet the following criteria:

Risks & Complications

Like any surgical procedure, there are potential risks and complications, including infection, bleeding, blood clots, and adverse reactions to anaesthesia.

Long-term vitamin and nutrient deficiencies can occur due to reduced food intake and stomach size. Regular monitoring and supplementation are usually recommended.

Gastrointestinal issues, such as acid reflux, nausea, or vomiting may also occur.

Post-Surgery Care

  • Gradual diet progression: Patients start with a liquid diet and progress to soft and then solid foods under medical supervision.
  • Follow-up appointments: Regular check-ups are crucial to monitor weight loss progress, address any complications, and provide ongoing support.

Cost of Surgery

Dr Govind Krishna is one of Sydney’s most experienced weight loss surgeons. He is committed to providing affordable, best-practice, multidisciplinary solutions in a safe private hospital setting.

  • Insured patient: $6,726 minus $876 Health fund rebate = $5,850 out of pocket (*all costs included).
  • Uninsured patient: $20,407 minus the $657 Medicare rebate = $19,750 out of pocket (*all costs included).

* Cost shown includes all fees for Dr Govind Krishna + surgical assistant + anaesthetists + hospital fees + dietitian and exercise physiologist for one year + consult with psychologist, all inclusive of GST.

For more costing information and ways to fund your surgery, click here.


Gastric sleeve surgery is a major decision that requires careful consideration and consultation with medical professionals. It is essential to fully understand the procedure, potential risks, benefits, and the necessary lifestyle changes for long-term success.

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 and Liverpool.

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

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New Rooms From June 3rd

On the June 3rd We will be changing our practice rooms to:
11 Price St Wetherill Park 2164.

For all patients visiting before then please come to our rooms at:
15 Wrentmore St, Fairfield 2165.