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Weight loss surgery

Sleeve Gastrectomy (LSG)

In this procedure, approximately 80% of the stomach is removed. The surgery works by restriction (smaller stomach) and complex metabolic (gastrointestinal hormonal changes). The end result is less hunger and earlier satiety/fullness with food.

The average weight loss is about 65 to 70% of excess weight over twelve to eighteen months.

Sleeve Gastrectomies are performed laparoscopically and require a two- to three-day hospital stay. Patients generally return to work within two to four weeks.

  • No intestinal surgery
  • Both a restrictive and metabolic procedure
  • No foreign body
  • Good quality of eating
  • Irreversible operation
  • Risk of gastro-oesophageal reflux
  • Risk of staple line leak
  • Risk of micronutrient deficiency
Request an appointment for more information.

Dr Benedict Mackay’s approach is designed not only to perform your surgery but equip you with the tools and information to achieve sustained, long term weight loss.

One of Australia’s most highly trained and qualified bariatric surgeons, Dr Benedict Mackay combines impressive experience with a deep knowledge of modern surgical techniques and a commitment to achieving the very best outcome for patients.

Dr Benedict Mackay
BSc, MBChB, MRCS (England), FRACS
General, Upper GI and Bariatric Surgeon

Professional Associations

Benefits of weight loss surgery.

Weight loss surgery works by increasing your sense of fullness after eating. Reference: 1,2

Expected weight loss in one year is about 20 – 33% of your overall body weight.Reference: 3

People having keyhole surgery have a shorter time in hospital, fewer complications and less time to make a full recovery.Reference: 4,5

An overall Improvement to your quality of life.

Bariatric surgery has been linked to improvements in type 2 diabetes, reduced blood sugar, reduced use of medications, and even resolution of the condition.


Supporting you on your weight loss journey.

If you have any questions, please get in touch.