Weight Loss Surgery in Melbourne: A Patient Guide

Is Weight Loss Surgery Right for You?

Weight loss surgery — also known as bariatric surgery — is the most effective long-term treatment for severe obesity. It is generally considered for adults who:

• Have a BMI of 40 or above, OR
• Have a BMI of 35 or above with significant weight-related health conditions (type 2 diabetes, sleep apnoea, hypertension, joint disease)
• Have made sustained attempts at non-surgical weight loss without adequate results

Surgery is not a quick fix — it requires lifelong commitment to dietary changes, supplementation, follow-up, and lifestyle modification. However, for the right patient, it can be life-changing.

Types of Bariatric Surgery Available in Melbourne

Sleeve Gastrectomy

The sleeve gastrectomy is currently the most commonly performed bariatric procedure in Australia. Approximately 80% of the stomach is removed laparoscopically, leaving a narrow "sleeve" shape. This reduces food intake and significantly lowers ghrelin (the hunger hormone).

• Expected weight loss: 60–70% of excess weight
• Advantages: No rerouting of intestines, relatively straightforward recovery
• Considerations: Irreversible; may worsen reflux in some patients

Roux-en-Y Gastric Bypass

The gastric bypass involves creating a small stomach pouch and rerouting a section of the small intestine. It is particularly effective for patients with type 2 diabetes.

• Expected weight loss: 70–80% of excess weight
• Advantages: Highly effective; often resolves type 2 diabetes
• Considerations: More complex surgery; requires close long-term nutritional monitoring

Adjustable Gastric Band

The lap band places a silicone band around the upper stomach to create restriction. It is reversible and adjustable, but requires regular follow-up for band adjustments.

• Expected weight loss: 40–50% of excess weight
• Advantages: Reversible; no cutting of stomach or intestines
• Considerations: Requires ongoing adjustments; lower long-term success than sleeve or bypass

Single Anastomosis Duodenal Switch (SADS)

A newer procedure combining elements of the sleeve gastrectomy with intestinal bypass. Reserved for patients with severe obesity or metabolic disease.

The Surgical Journey: What to Expect

1. Referral and initial consultation

Your GP refers you to a bariatric surgeon. Dr Chong can provide referrals and pre-operative medical optimisation.

2. Pre-operative assessment

Blood tests, sleep study, dietitian review, psychology assessment, and medical optimisation.

3. Surgery

Most bariatric procedures are performed laparoscopically (keyhole) under general anaesthetic, with a 1–3 day hospital stay.

4. Recovery

Most patients return to normal activities within 2–4 weeks. Dietary progression from liquids to solids occurs over several weeks.

5. Long-term follow-up

Regular reviews with your bariatric GP, surgeon, and dietitian are essential. Blood tests for nutritional deficiencies should be performed every 6–12 months for life.

Dr Chong's Role in Your Surgical Journey

Dr Chun Guan Chong provides comprehensive perioperative care including pre-operative assessment, medical optimisation, and long-term post-bariatric follow-up at multiple Melbourne locations including:

• Epworth Centre for Bariatric Surgery, Box Hill
• Victorian Bariatric Surgery Centre, Williamstown
• Heidelberg Weight Loss Surgery, Heidelberg

To discuss whether weight loss surgery is right for you, contact Dr Chong at (03) 9100 3130 or book via HotDoc.