Question:
What is a VBG compared
to an RNY? — Kelly* P. (posted on March 2, 2003)
March 2, 2003
Here is a site that has diagrams of both along with some explanatory text:
http://www.uphs.upenn.edu/surgery/bariatric/procedure.html
<p>
The VBG (vertical banded gastroplasty is a procedure that is performed to
restrict food intake. It is purely a restrictive procedure (like the
Adjustible Lap Band). The VBG reduces a normal sized stomach into a small
pouch by partitioning the stomach with staples. At the lower end of the
staple line, a permanent band is placed at the bottom of the pouch and acts
as a sphincter into the remainder of the stomach. It does not induce
malabsorption. The band causes food to be retained in the smaller stomach
for a longer period of time. The patient feels full for a longer period of
time, and tends to eat less. Patients must chew their food well and avoid
high calorie liquids.
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The RNY, more correctly known as the Roux-en-Y Gastric Bypass (RYGB) also
partitions the stomach. However, in this procedure the pouch that is
created is disconnected from the rest of the stomach. The small intestine
is then cut and connected to the pouch. A hole is made in the pouch, and
the lower segment of the small intestine is surgically connected to the
pouch. Connection of the pouch to the lower segment of the small intestine
reduces the amount of substances absorbed from the food, and therefore
induces malabsorption. However, because nutrient absorption also takes
place in the upper segment of the small intestine that is removed, patients
must take vitamin supplements to maintain adequate nutrition levels.
Patients must chew food well and avoid concentrated sugars. This procedure
induces a degree of malabsorption and achieves restriction of the stomach
capacity.
— John Rushton
March 2, 2003
I encourage you to investigate a LAP BAND adjustable band if you want the
VBG. My surgeon says the VBGs failure rate is 80% in 5 years. The tight
band makes it hard to eat good food while junk food like chips goes down
great. SOME VBGers do fine but our support group is filled with vbg
revisions to the rny. The RNY has better results and we get posters here
regurally wanting a vbg to rny revision.
— bob-haller
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