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Lap Band vs. Gastric Bypass vs.
Gastric Sleeve Surgery

Obesity Surgery Comparison

There are a lot of options and factors to consider when pursuing weight loss surgery in Sydney. Our side-by-side comparison chart below covers the main differences between gastric bypass surgery, sleeve gastrectomy and gastric banding.

Practical info

Gastric Banding

Sleeve Gastrectomy

Gastric bypass

Procedure Minimally invasive laparoscopic procedure Moderately invasive laparoscopic procedure, removing a 75% of the stomach. Invasive laparoscopic procedure, involving multiple areas of the abdomen. Changes normal processes of digestion.
Reversibility Reversible Non reversible Reversible
Operating time 30-40 min 45-60 min 60-90 min
Advantages No change to normal digestion
Lower risk of early surgical complications
Lowest mortality rate
No hunger
No foreign body around the stomach
Low mortality rate
Less follow up appointments after surgery
Improved quality of life
Improved or resolved conditions associated with obesity
Regarded as “set and forget” procedure.
Best known long term operation
Rapid initial weight loss
Improves or totally resolves diabetes
Maximum amount of weight loss
Risks or Complications Bleeding
Tubing leak
Band Infection
Slippage
Band erosion into the stomach
Food intolerances
Gastric acid reflux
Reoperation risk
Staple separation or leakage
Gastric acid reflux (rare)
Changes to normal digestion
Staple separation or leakage
More follow up than after sleeve gastrectomy
Gastric stomal ulcer
Dumping syndrome
Risk of internal hernia,
No gastroscopic access to duodenum
Average Hospital Stay 1 day 2-3 days 2-4 days
Average time off Work 1 week 2-4 weeks 2-4 weeks
Quality of life Can be compromised
Some types of foods are not tolerated.
Very good Most type of foods are well tolerated Eating is normal, but portions are restricted Good
Sickness
vomiting
productive burping
Frequent, if the band is overtight. None to very rare None to very rare
Follow-up Regular visits to adjust the band are crucial for successful weight loss Regular follow-ups every 1-2 months for the first 6 months, then 3 -6 monthly to check on the progress Regular follow-ups every 1-2 months for the first 6 months, then 3 -6 monthly to check on the progress
Excess weight loss 40-50% 65-70% 80%