Surgery Comparison – Specialist Weight Management Services

	Sleeve Gastrectomy	Roux-en Y Gastric Bypass	One anastamosis Gastric Bypass
Time of Operation	1 – 1.5 hours	2 – 4 hours	1.5 – 3 Hours
Hospital Stay	1 – 2 nights	1 – 2 nights	1 – 2 nights
Wounds	Minimal – Keyhole surgery	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	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	Potentially Iron, fat soluble vitamins, Calcium, Vitamin B12
Potential Side Effects & 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	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	60 – 70% of excess weight
Reversibility	Permanent	Essentially irreversible	Reversible
Death Rate (within 30 days of surgery)	2-4 in 1000	2-4 in 1000	2-4 in 1000
Follow Up	Long term 2 years with surgery provider Discharged to GP at 2 years for annual review + blood tests	Long term 2 years with surgery provider Discharged to GP at 2 years for annual review + blood tests	Long term 2 years with surgery provider Discharged to GP at 2 years for annual review + blood tests