Surgery Comparison

  Sleeve Gastrectomy Gastric Bypass

Time of Operation

1 – 1.5 hours 2 – 4 hours

Hospital Stay

1 – 2 nights 1 – 2 nights

Wounds

Minimal

– Keyhole surgery
Minimal
– Keyhole surgery

Food Intake

Food amount is restricted
Food range may be restricted

Food amount is restricted
Food range may be restricted

Nutritional Deficiencies

Unlikely but potentially Iron and Vitamin B12 Potentially Iron, fat soluble vitamins, Calcium, Vitamin B12

Potential Side Effects and Complications

Vomiting, Nausea, Bleeding, infection, clot formation, staple-line leak, Reflux Vomiting, Bleeding, infection, clot formation, Anastomotic leak, Dumping Syndrome, Possible change in bowel habits

Expected weight Loss after 12-18 months

50 – 60% of excess weight 60 – 70% of excess weight

Reversibility

Permanent Essentially irreversible

Death Rate (within 30 days of surgery)

2-4 in 1000 2-4 in 1000

Follow Up

Long term
2 years with surgery provider and annual review thereafter

Long term
2 years with surgery provider and annual review thereafter