Comparison chart	Gastric bypass	Gastric sleeve	Gastric band
Duration of Surgery	1.5 hours	1 hour	45 min
Tissue loss	No	Yes	No
Implant of device	No	No	Yes
Restrictively	Yes	Yes	Yes
Malabsorptive	Yes	No	No
Reversible	Yes	No	Yes
Days in Hospital	2 days	2 days	1 days
Days in Hotel	6 days	3 days	3 days
Back to work / study	7 days	6 days	3 days
Beginning of exercise	14 days	14 days	14 days
Loss of excess weight at 1 year	85%	75%	65%

BYPASS

GASTRIC

It is to reduce and restrict food absorption creating a small reservoir at the expense of the lesser curvature of the stomach

It is a procedure that removes 75% to 80% of the stomach to leave a long tubular stomach.

It is an inflatable band placed around the upper stomach, in order to limit the amount of food.