Gastric sleeve surgery, also known as sleeve gastrectomy, is
a medical procedure carried out to help people who are
overweight lose excess weight. During the procedure, a
large part of the stomach is surgically removed. It's hard to
tell exactly, but the capacity of the stomach is reduced to
give or take 25% of what it was originally, prior to any
surgery. The procedure is often referred to as gastric sleeve
surgery because the remaining stomach is shaped like a
sleeve after the operation. Long, and tubular, like a long-
sleeve shirt. The surgery normally takes just over a half-hour
at it's quickest, up to around two hours in some cases. The
amount of time spend in the operating room all depends on
many factors.