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  • Q&A with Australian Health Practitioners

    I am having bariatric surgery how much weight will I lose?

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  • A/Prof Ruth Blackham

    Bariatric (Obesity) Surgeon, Upper GI Surgeon (Abdominal)

    Dr Ruth Blackham is an Australian-trained Surgeon with subspecialty Fellowships in Bariatric, Upper GI and Metabolic Surgery. She has a special interest in Women's Health, … View Profile

    The degree of weight loss largely depends on the type of surgery performed. The following is a range of expected Total-Weight Loss (TWL) depending on the surgery:

    Adjustable gastric banding – 15-20%

    Sleeve Gastrectomy – 20-30%

    Gastric Bypass – 30-35%

    Duodenal Switch – 40-45%

    Intragastric Balloon – 10-15%

    Endoscopic Sleeve Gastroplasty – 15-20%

    Patient results may differ. If patient weight loss targets are not met, revisions may be required.

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