Sleeve Gastrectomy: A Proven Path to Lasting Weight Loss

What is Sleeve Gastrectomy

Sleeve gastrectomy — also known as gastric sleeve surgery — is one of the most common and effective weight loss procedures available today. During the operation, about 75–80% of the stomach is removed, leaving a small, banana-shaped “sleeve.” This smaller stomach holds less food, so you feel full much sooner.

But it’s not just about portion size. The surgery also reduces the levels of ghrelin — the hormone responsible for triggering hunger — so many patients find their appetite decreases significantly after surgery. This combination of reduced capacity and lower hunger makes it a powerful, long-term tool for weight loss.

The procedure is performed laparoscopically (keyhole surgery) under general anaesthesia. Most patients go home the same day or within 24 hours, and begin losing weight almost immediately.

How the Procedure Works

Understanding what happens before, during, and after surgery helps you feel confident and prepared. Here’s a simple breakdown of the process:

Before Surgery

You’ll meet with our surgical team for a full assessment. This includes reviewing your medical history, BMI, and overall health. You may be asked to follow a pre-operative diet for 1–2 weeks to reduce the size of your liver, which makes surgery safer and easier.

During Surgery

Your surgeon makes a few small keyhole incisions and uses a camera and precision instruments to remove approximately 75–80% of the stomach. The remaining stomach is shaped into a sleeve and sealed with surgical staples. The entire procedure typically takes 60–90 minutes.

After Surgery

Most patients are up and moving within a few hours of surgery. You’ll begin on clear fluids and gradually progress to pureed, soft, and then regular foods over several weeks. Light daily activities can typically resume within 2–3 weeks, and most patients return to work within 1–2 weeks for desk jobs.

Am I a Good Candidate for Sleeve Gastrectomy?

You may be a good candidate if you:

  • Have a BMI of 35 or higher
  • Have a BMI of 30–34 with an obesity-related health condition such as type 2 diabetes, high blood pressure, or sleep apnoea
  • Have tried diet and exercise without achieving lasting results
  • Are committed to making long-term lifestyle changes
  • Are in generally good health for surgery

Our team will conduct a thorough assessment during your consultation to confirm that sleeve gastrectomy is the right fit for your individual needs and health profile.

Benefits of Sleeve Gastrectomy

Most patients lose 60–70% of their excess body weight within the first 12–18 months. But the benefits go well beyond the number on the scale:

Type 2 Diabetes

Many patients see significant improvement or full remission of type 2 diabetes, often before they’ve even reached their goal weight.

Sleep Apnoea

Weight loss frequently resolves or greatly improves obstructive sleep apnoea, leading to better sleep and more energy during the day.

Blood Pressure & Cholesterol

High blood pressure and elevated cholesterol often reduce significantly following surgery and sustained weight loss.

Joint Pain Relief

Reduced body weight means less strain on your knees, hips, and back — many patients report dramatically less joint pain within months of surgery.

More Energy & Confidence

The majority of patients report a marked improvement in daily energy levels, self-confidence, and overall quality of life.

Long-Term Results

Unlike temporary interventions, sleeve gastrectomy delivers lasting structural change. With the right lifestyle habits, results can be maintained for life.

Risks & Considerations

Like all surgical procedures, sleeve gastrectomy carries some risks. It’s important to us that every patient feels fully informed before making their decision — and we take time to walk through this with you in detail during your consultation.

Common short-term risks include nausea, acid reflux, and the general risks associated with anaesthesia. Longer-term considerations include nutritional deficiencies, which are easily managed with daily vitamin and mineral supplements and regular follow-up appointments with our team.

It’s also important to understand that sleeve gastrectomy is a permanent procedure — the removed portion of the stomach does not grow back. This is why patient education and readiness are central to everything we do at Revive Bariatric Health.

Want to know what procedure is right for you? Book your appointment and download our intake form today.

Check where you stand
with our BMI calculator

BMI Calculator

About BMI: Body Mass Index (BMI) is a measure of body fat based on height and weight.
Underweight: BMI < 18.5
Normal weight: 18.5 – 24.9
Overweight: 25 – 29.9
Obese: 30 or more

This tool is for general informational purposes only and is not medical advice. See your healthcare provider for personalized guidance.