There are two basic steps to
gastric bypass surgery. The first step makes your stomach smaller. The surgeon makes an incision in
the abdomen to divide the stomach into a small upper section and a larger bottom
section using staples that are similar to stitches. The top section of the stomach
(called the pouch) will hold your food.
After the stomach has been divided, the surgeon connects a section of the small
intestine to the pouch. When eating, the food now travels from the pouch through
this new connection ("Roux limb"), bypassing the lower part of the stomach. The
surgeon then reconnects the base of the Roux limb with the rest of the small intestines
from the bottom of the stomach, forming a y-shape.
This y-connection allows food to mix with pancreatic fluid and bile, helping
to absorb important vitamins and minerals, but you still may have poor absorption
of certain nutrients after Roux-en-Y gastric bypass surgery.
Laparoscopic Roux-en-Y
Roux-en-Y
gastric bypass surgery may also be done laparoscopically, using a camera placed in the abdomen. This
less-invasive technique allows the surgeon to make smaller surgical cuts, which
lowers the risk of large scars and hernias after the procedure.
First, small surgical cuts are made in your abdomen. The surgeon passes thin
surgical instruments through these narrow openings. The surgeon also passes a
camera through one of these small openings and watches through a lens and video
monitor to do the surgery.
Not everyone is a candidate for the laparoscopic gastric bypass surgery. Your
surgeon will
determine the best and safest approach for you.
You may not be a good candidate for
laparoscopic surgery if you have had past abdominal
surgery, due to scar tissue, have significant heart and lung disease, and/or weigh
more than 350 pounds.