| 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 |
|
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 |
Long term 2 years with surgery provider and annual review thereafter |