LapSurgery Australia operating theatre

Roux-en-Y Gastric Bypass

Bariatric Safety Registry Member
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Years

Established in 1984. Pioneers in Australian Bariatric Surgery

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Lives Transformed

Over 4000 Lives Successfully Transformed

Dual surgeon care
Dual Surgeon Care

Two Bariatric-Trained Surgeons For Every Bariatric Surgery

Multidisciplinary team
Multidisciplinary Team

We are a Multi Disciplinary Team

Your 5 Step Journey to Better Health

A comprehensive step-by-step process designed to support you every step of the way

Initial Consultation

Week 1

Your journey starts with an initial consultation with one of our experienced surgeons. You will need a GP referral for this appointment. We will discuss your weight loss goals, medical history, and determine the best weight loss option for you.

Comprehensive Evaluation

Weeks 2-6

Complete medical assessment including blood tests, imaging studies, and consultations with our multidisciplinary team to ensure you are ready for the next steps.

Pre-Surgery Preparation

Weeks 6-8

4-6 weeks prior – your pre-operative assessment with Specialist Physician. 2-4 weeks prior – a consultation with our specialist bariatric dietitian. 2-4 weeks prior – a consultation with our specialist bariatric psychologist. 1 week prior – a consultation with the pre-admission nurse of the hospital. 1 week prior – a final consultation with your surgeon.

Surgery Day

Day of Surgery

Minimally invasive procedure performed by two fellowship trained surgeons using advanced laparoscopic and/or robotic technology. Your operation will give you the ability to control your weight in a way you never could before. However, your operation is just the beginning of the journey of long-term success in controlling your weight.

Ongoing Care & Lifelong Support

Ongoing

In the first year after operation we have a specific program in which you will be seen by your surgeon, nurse, exercise professional and dietitian for multiple appointments. We will be supervising your weight loss and issuing guidance and help during this time. It is vital that you attend all your appointments and particularly all your dietitian appointments. 7-10 days post op – Post-operative appointment with LapSurgery Australia's Nurse. 2-3 weeks post op – Consultation with Dietitian. 5-6 weeks post op – Surgeon review. 2.5 months post op – Consultation with Dietitian and Exercise Professional. 4-5 months post op – Surgeon review. 6 months post op (for gastric bypass) – Specialist Physician review with comprehensive blood test. 6.5 months post op – Consultation with Dietitian. 12 months post op – Specialist Physician review with comprehensive blood test.

Your RNY Bypass Surgeons

Roux-en-Y bypass is the most studied bariatric operation in the world and the one with the longest track record. It reroutes the small bowel as well as reducing the stomach, so it belongs with surgeons who perform it regularly. Two bariatric trained surgeons are in the theatre for every bypass, supported by a Specialist Physician who manages diabetes and reflux medication before and after surgery, bariatric dietitians, a clinical psychologist, an exercise professional and bariatric nurses.

Check Your Eligibility

Answer a few quick questions to see if you may be eligible for bariatric surgery

Height & Weight — Step 1 of 425%

What is your height and weight?

Arrange a Consultation

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or leave your details below

The Standard Bypass at a Glance

The facts patients ask us about most. Every card links to the full guide.

RNY Bypass Cost

With adequate private health insurance, Roux-en-Y gastric bypass ranges from $10,000 to $13,000. Your package includes the surgeon and assistant surgeon, Specialist Physician assessment, psychologist, dietitian and exercise professional. We provide a full written quote at your consultation.

See pricing

How We Support Your Transformation

Explore our approach to comprehensive weight loss care through these informative videos

OverviewWelcome

Introduction

Welcome to LapSurgery Australia. Learn about our comprehensive approach to weight loss surgery and how we have been helping patients transform their lives for over 40 years.

Other Bariatric Options at Our Clinic

Comprehensive bariatric and weight loss solutions tailored to your individual needs

Sleeve Gastrectomy

Sleeve Gastrectomy

The most popular bariatric procedure. Reduces stomach size by approximately 80%, leading to significant weight loss and improved health outcomes.

Learn more
Gastric Bypass (Roux-en-Y)

Gastric Bypass (Roux-en-Y)

Highly effective for weight loss and diabetes resolution. Creates a small stomach pouch and reroutes the digestive system for optimal results.

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One Anastomosis Gastric Bypass

One Anastomosis Gastric Bypass

A modern bypass technique with a single connection point, designed to help you eat less, absorb fewer calories, and feel fuller sooner.

Learn more
Mini Gastric Bypass

Mini Gastric Bypass

A simpler bypass procedure with excellent long-term weight loss outcomes and metabolic benefits, performed laparoscopically.

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SADI Surgery

SADI Surgery

Single Anastomosis Duodeno-Ileal Bypass — a powerful procedure modified to reduce malnutrition risk while maximising weight loss.

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Allurion Balloon

Allurion Balloon

Non-surgical weight loss solution. A swallowable gastric balloon that helps you lose weight without surgery, endoscopy, or anaesthesia.

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Intragastric Balloon

Intragastric Balloon

An endoscopically placed balloon that occupies space in the stomach, helping reduce food intake for meaningful weight loss.

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Revisional Surgery

Revisional Surgery

Expert revision of prior weight loss procedures including band-to-sleeve conversions and other complex secondary surgeries.

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Lap-Band Surgery

Lap-Band Surgery

Adjustable gastric banding — a reversible surgical option with over 4,000 operations performed by our team since 1998.

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Non-Surgical Weight Loss

Non-Surgical Weight Loss

Comprehensive multidisciplinary approach including dietitian support, psychological counselling, and medical management.

Learn more

Roux-en-Y Questions Answered by Our Surgeons

It is named after César Roux, the Swiss surgeon who first described joining the bowel in a Y shape, and the Y describes the shape the rerouted bowel makes. In a Roux-en-Y gastric bypass a small stomach pouch is joined to one arm of the Y so food bypasses the rest of the stomach, while digestive juices travel down the other arm and meet the food further along.

Roux-en-Y uses two joins and keeps bile away from the stomach pouch. The mini gastric bypass, also called one anastomosis bypass, uses a single join and is a shorter operation. Both produce similar weight loss. We usually recommend Roux-en-Y where reflux is present or likely, and where there has been a previous band, and the mini bypass in selected patients where a shorter operation is an advantage. Your surgeon will explain which suits you.

With adequate private health insurance, Roux-en-Y gastric bypass ranges from $10,000 to $13,000, including the surgeon and assistant surgeon, Specialist Physician assessment, psychologist, dietitian and exercise professional. Conversion of a band or sleeve to Roux-en-Y ranges from $10,000 to $15,000. We provide a full written quote at your consultation.

You may qualify from a BMI of 35, or from 30 if you have a condition such as type 2 diabetes, sleep apnoea, high cholesterol, gout or liver disease. For patients of Asian descent the thresholds are 32.5 and 27.5. Roux-en-Y is often recommended over the sleeve when reflux or type 2 diabetes is present. Use the BMI calculator on this page for a quick check, then book a consultation to confirm.

All surgery carries some risk, including bleeding, infection and reactions to anaesthetic. The risks specific to bypass are a leak at one of the joins in around 1 per cent of cases, ulcers at the join, dumping syndrome after sugary food, an internal hernia in the years after surgery, and vitamin or mineral deficiency if supplements are not taken. Two bariatric trained surgeons at every operation, keyhole and robotic techniques and Bariatric Safety Registry tracking help keep risk low, and we discuss your individual risks before you decide.

No. You can book an initial consultation without a referral. A GP referral is recommended because it allows a Medicare rebate on the consultation and some health funds ask for one. We can help you arrange a referral if you do not have one.

We consult in Dandenong North, Berwick, Frankston, Cranbourne and Warragul. Surgery is performed in private hospitals across Melbourne’s south east. You can book online, call (03) 9760 2777 or leave your details on this page.