The surgery takes about an hour. Your surgeon will make a few small cuts in your stomach and insert a laparoscope -- an instrument with a tiny camera that sends pictures to a monitor. The surgeon will then insert other medical instruments through the additional cuts and remove 3/4 of your stomach. Finally, he’ll reattach the rest of your stomach to form the "sleeve" or tube.
You might be in hospital about 2 or 3 days. The procedure is permanent.