Question 1

Which bariatric procedure has the best long-term weight-loss outcome?

Accepted Answer

Roux-en-Y gastric bypass has historically the best 10+ year weight-loss + diabetes-resolution outcomes (65–80% excess weight loss maintained at 5 years; 75–85% T2D remission). Sleeve gastrectomy has slightly lower outcomes (60–70% EWL at 5y) but is mechanically simpler, has fewer long-term complications and is now the most-commonly-performed procedure globally. Bypass remains preferred for type 2 diabetes priority + severe gastro-oesophageal reflux.

Question 2

Why has the lap-band declined in use?

Accepted Answer

Lap-band (adjustable gastric band) was the dominant Australian bariatric procedure from 2000-2010 but has steadily declined as long-term outcomes proved worse than sleeve / bypass. Common late complications include band slip, erosion, port-site infection, oesophageal dilation, and the need for revision surgery (~20-40% revision rate at 10 years). Many surgeons no longer offer it as a first-line procedure; some specialise in lap-band removal + conversion to sleeve.

Question 3

How much do I pay out-of-pocket for bariatric surgery in Australia?

Accepted Answer

With private hospital cover (12+ months, no exclusions): Sleeve $13,000-$25,000; Bypass $18,000-$30,000; Lap-band $10,000-$18,000. Without cover: ~$25,000-$40,000 (uncommon; some clinics offer payment plans or self-funded packages). Medicare item numbers 31572 (sleeve), 31575 (bypass) provide rebate; Extended Medicare Safety Net further reduces gap fees. Pre-op multidisciplinary work-up adds $2,000-$5,000 (dietitian + psychology + GP).

Question 4

How long does the pre-op pathway take?

Accepted Answer

Typically 3-6 months. Standard ANZMOSS pathway: (1) Surgeon consultation + decision, (2) Dietitian assessment + 6-12 week structured pre-op diet (low-calorie + protein-focused, often a Very Low Calorie Diet for the last 2 weeks), (3) Psychology assessment (for psychological readiness + binge-eating screening), (4) GP + comorbidity work-up (sleep study, lipid panel, HbA1c, liver), (5) Hospital admission. Some surgeons fast-track; others require 12+ months supervised weight management.

Question 5

What's the recovery process really like?

Accepted Answer

Liquid-only diet for 2 weeks post-surgery (protein shakes, broths, water). Puréed foods weeks 3-4. Soft foods weeks 5-6. Normal foods (small portions) from 6-8 weeks. Most patients return to desk work in 1-2 weeks; physical jobs 4-6 weeks; full exercise 6-8 weeks. Lifelong follow-up: bariatric multivitamin daily (forever), B12 injections (esp. post-bypass), annual blood tests for nutrient deficiencies. The first 6 months are intense weight loss; plateaus common at 12-18 months.

Question 6

Can I get pregnant after bariatric surgery?

Accepted Answer

Yes — but wait 12-18 months post-surgery to allow weight stabilisation + nutrient repletion before conceiving. Pregnancy too soon risks foetal nutritional deficiencies. Bariatric obstetric care available at most major hospitals. Many women find fertility improves dramatically post-surgery (weight loss restores ovulation in PCOS patients).

Question 7

What if I regain weight after bariatric surgery?

Accepted Answer

Weight regain is common at 5-10 years post-surgery (typically 10-30% of weight lost is regained). Causes include stretching of the gastric pouch / sleeve, behavioural drift, hormonal changes, and inadequate follow-up. Options for regain: (1) reinforce dietary + behavioural patterns, (2) add a GLP-1 medication (where a clinician considers it appropriate), (3) revision surgery (e.g. sleeve to bypass conversion). Most ANZMOSS surgeons offer integrated long-term support.

Question 8

How do I find a good bariatric surgeon?

Accepted Answer

Look for: (1) ANZMOSS membership (Australia + NZ Metabolic and Obesity Surgery Society — the in-vertical body), (2) FRACS qualification (Royal Australasian College of Surgeons fellow), (3) high-volume operator (200+ bariatric procedures/year is a strong marker), (4) multidisciplinary clinic structure (dietitian + psychology + GP + surgeon in one place), (5) hospital affiliations + complication data transparency. Browse our directory of ANZMOSS-aligned bariatric surgeons across major capitals.

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