Gastric Bypass Roux-en-Y
The gastric bypass procedure is considered to be the most advanced and
most successful procedure for weight-loss surgery to date. In this procedure,
a small (15-20cc) stomach pouch is created (usual stomach is approximately
1,500cc or greater).
The remainder of the stomach is not removed, but is completely divided
from the smaller stomach pouch. The outlet from this newly formed stomach
pouch is then connected directly to the jejunum, the first part of the
small intestine where digestion takes place.
This connection bypasses calorie absorption in the duodenum, the first
12-inch section of the small intestine directly below the stomach. This
is done by dividing the small intestine just beyond the duodenum and constructing
a connection with the new, smaller stomach pouch. The remaining (large)
stomach is connected into the digestive tract approximately 75cm downstream
of the new stomach.
This allows for the body to continue with normal absorption of nutrients
in the small intestine, as the "large” stomach continues to
make chemicals that are vital to the normal digestive process.
Gastric bypass is not a principally malabsorptive procedure. Gastric bypass
is primarily a restrictive procedure, which gives the patient a feeling
of fullness and satiety on a very small amount of food, with a very small
degree of malabsorption. Gastric bypass is the only weight-loss operation
that has been shown to reduce levels of ghrelin (the hunger hormone),
which significantly reduces cravings for food, and results in "satiety”
and not just "fullness.”
Malabsorptive procedures, such as the biliopancreatic diversion (BD) and
duodenal switch (DS), have fallen out of favor due to high risk of complications
and are, therefore, not offered at Alvarado.
Roux-en-Y gastric bypass can be done either as a laparoscopic (minimally
invasive) or open procedure. The laparoscopic procedure is performed through
five or six small incisions, rather than with one large incision, as with
the open procedure. The laparoscopic approach leads to less discomfort,
thereby allowing a faster recovery. If the laparoscopic gastric bypass
is performed by a highly skilled surgeon, it has been shown to result
in less complications than the open procedure.
U.S. studies show that the average maintained excess weight loss after
gastric bypass is 50% to 75%. Success rates at Alvarado Hospital have
been consistently higher than national averages. It is important to recognize
that the long-term success with weight loss is widely variable, depending
on choice of surgeon, surgical technique, patient compliance and commitment
Physician Referral and More Information
To be referrered to a bariatric surgeon or for more information on Alvarado's
Surgical Weight-Loss Program, call the bariatric program coordinator at
e-mail her. You can also call our customer service representatives at (800) ALVARADO
(800-258-2723) or click here to access our
online physician directory.
Alvarado Advantage Club
Join the free Advantage Club and take advantage of extra perks: Priority
parking, free newspaper delivered with breakfast if hospitalized, pharmacy
discounts, discount at Alvarado cafe/gift ship, membership welcome gift
and a free cup of gourmet coffee for you or a guest. To sign up,