Before Surgery

Extremely high blood pressure
Weighing 186 kilos at heaviest

After Surgery

Weight down to 82 kilos
No longer diabetic

depositphotos_5246576-stock-photo-man-on-the-beach - copy

I’ve been lucky to have SIOS support me throughout my weight loss journey! An amazing team of doctors, surgeons, dietitians and psychologists all in the same clinic.

Start your journey to better health for life

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Take the First Step Towards a Healthier Life

Obesity is a serious and complex issue that is second only to smoking as a cause of premature death. There is a misperception that weight loss is simply a matter of eating less for a while and doing some exercise. If this were true, obesity as a disease wouldn’t exist.

Bariatric obesity surgery is the most effective treatment option that assists in weight loss to overcome obesity-related issues such as diabetes, heart disease, and asthma; and improve life expectancy.

SIOS is the first private obesity clinic in Sydney, operating for over 18 years. Our allied health professional team provide personal care, to help you understand whether weight loss surgery is right for you.

Obesity surgery is a long-term, life changing decision; it is a journey to better health and quality of life. SIOS offers support to help you through this journey with a professional team of counsellors, dieticians, surgeons, doctors and nurses.

Your initial consultation is free. Take the first step to improve your quality of life.

Obesity has been linked to several serious medical conditions, including: diabetes, heart disease, strokes, high blood pressure, asthma, obstructive sleep apnoea, cancer, gallbladder disease and gallstones, osteoarthritis, gout. For people with severe obesity (BMI >= 40), life expectancy is reduced by as much as 10 to 20 years.

Obesity is an excess of total body fat, which results from caloric intake that exceeds energy usage. A measurement used to assess health risks of obesity is Body Mass Index (BMI).

Click here to find out more about Body Mass Index BMI. A BMI of 30 or above is considered obese and 40 or above, morbidly obese.

Morbid obesity surgery is not cosmetic surgery. All doctors recognise that once a patient’s weight exceeds a certain range they are more likely to suffer from a wide range of illnesses such as diabetes, sleep apnoea, asthma, hypertension, arthritis, varicose veins and skin problems. Their chances of dying at a premature age are also greatly increased. Their employment prospects, mobility and social acceptance also suffer. Depression is much more common in the morbidly obese. The main aim of this surgery is to bring your weight down to a safer range where most of these associated conditions are reduced in severity and many completely reversed. Along the way most people find an improvement in their mobility, body image, self-esteem and enjoyment of life.

At SIOS, we offer the following bariatric surgery procedures:


The band is placed at the upper part of the stomach . It allows people to feel satisfied after eating only a small amount of food. As the size of the inlet to the stomach can be adjusted, food is slowed down on its journey, allowing you to eat small quantities of food over the same time that others will eat a large meal. The band can be adjusted over the months and years by injecting fluid, to keep you losing weight for around one or two years. It also makes it a good option if you’re a woman hoping to have a baby in the future. In Australia, about one in five initial operations for obesity are a lap band.


Gastric sleeve surgery involves removing the outer part of the stomach, thus significantly reducing the capacity to store food and generate hunger signals. People who undergo this operation lose hunger quickly during a meal and find it hard to overeat. Their stomach is turned into a narrow tube with a volume at least 75 per cent smaller than before. Their maximum meal size is reduced to less than one cup of food, but the restriction in volume of food that can be eaten usually occurs without significant restriction of the types of food that can be eaten. Vomiting is less common than with the band, but reflux is more common. Although the side effects of this gastroplasty are far less than ‘stomach stapling’, the procedure is permanent, so any side effects might also be permanent.


Several forms of this procedure have been performed over the last three decades. It is based on an operation which has been used to treat stomach ulcers and cancers for more than a century, and the name is derived from the name of the French surgeon who first described the use of a small segment of small bowel to divert bile and acid away from the stomach and oesophagus. The current operation involves a restrictive element (considerably reducing the size of part of the stomach) and a hormonal component (early passage of food into the intestine). These two factors give the strongest possible appetite suppression. This makes weight loss relatively straightforward in the great majority of people. This operation has a very good combination of effectiveness (how much weight is lost) and durability (how long weight loss lasts). It avoids some of the dietary limitations of restrictive operations and the nutritional deficiencies of intestinal bypass operations. It accounts for 60 per cent of obesity surgery worldwide.


Revision surgery treats complications from prior weight loss surgery or weight regain.

If a patient needs revision surgery we can then create a solution that is specific to the particular problem that a patient has. Revision surgery can be planned to:

  • Fix a complication with an operation
  • Repair or fix an operation that is no longer working
  • Change an operation to another procedure (band/sleeve/bypass)

In some circumstances it is preferable to reverse the original operation and decide on further treatments later on.

As the options above are so wide and varied, it is very important to take the time to find the right solution for each person as an individual.


Obesity surgery isn’t a quick fix, it requires a lifelong commitment to improving your health. Our better health journey program supports you with care, empathy and non-judgement from the SIOS team of allied health professionals.

For over 18 years, our weight loss surgery in Sydney has been there for all our patients.  We will be there for you, every step, through all your ups and the downs.



  • Listen
  • History
  • Options
  • Advice


  • Procedure
  • Recovery
  • Post Op Care


  • Dietician and Nutrition
  • Psychologist
  • Meet Your Team
  • Preoperative Planning


  • Dietician / Nutrition
  • Counselling and Life Coaching Support
  • Comprehensive Support

Take the First Step Towards a Healthier Life

  • I had a great experience attending this clinic for the first time. I was welcomed with a friendly smile, the co-ordinator treated me with respect and humour, I was educated on all surgeries the pros and the cons. I am booked in to see a surgeon and the team. I would recommend this clinic to everyone.

    Zainab Zeinab
  • I was and are a continuing patient at SIOS and I have nothing but thanks and gratitude to all the staff members. I was treated with respect, and the staff were and continue to be helpful, caring and supportive. I highly recommend this clinic to all those wishing to undergo this sort of treatment.

    Angelina Joma
  • I want to thank all the doctors and admin staff for all their support that they have given my whilst I have been on my weight loss journey. The admin staff are lovely and friendly. They show a high level of professionalism. Patricia the bariatric nurse is very knowledgeable and very caring. I highly recommend this clinic for weight loss surgery. Thank you for changing my life! Xx 🙂

  • I have been a patient of SIOS on and off since June 2007. I have had two surgeries through SIOS, 2007 and recently July 2019 and cannot recommend them highly enough. The pre / post op care is second to none and is ongoing with 24 hour emergency care if needed. Patients are placed on a programme and you are not left to your own devices after surgery. Staff are extremely professional and friendly, nothing is a problem. I travel more than an hour each time I attend SIOS because I want the best. So if you are seeking weight loss surgery with outstanding post op care give them a call.

  • I would like to compliment the great receptionist on this morning, it made the appointment seamless and smooth. They really do care about the journey I’m on with weight loss, I would recommend anyone to go to this clinic for weight loss, they have it all under one roof, one stop shopping, which is great that they have dietitian, nurse and doctors on hand.

    Angie Jones
  • I cannot rate SIOS highly enough! From the knowledgeable and professional receptionists, especially Vanessa, to the fantastic, caring, brilliant nurse Patricia who is contactable 24/7 for any questions, help or advice following surgery. There’s a psychologist, and Eva the dietitian is wonderful, and always able to offer suggestions and ideas about food! The Doctors are awesome! Especially Dr Budge, who has effectively saved my husband’s life! I cannot thank Dr Budge & the entire team at SIOS enough! In less than 12 months after surgery, my husband had lost 65kgs!!!!! If you are thinking about weight loss surgery, give SIOS a call!!!!!

    Keri McDonald

Free Initial Consultation

If you are considering obesity surgery the first step is to contact us for a complimentary consultation.

In this initial conversation we will discuss the SIOS weight-loss journey, including:

  • Surgeries available
  • Costs and fee structure
  • Pre-surgery appointments
  • Your hospital stay
  • After-care programme
  • Support groups and workshops
  • Other programmes to help you achieve your healthy weight

This is a private and confidential discussion during which we will also consider your medical history, suitability for surgery and life style.  Take the first step towards a healthier life and fill in the online form or call us on 02 8080 4644

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