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Gastric Restrictive
Procedures
Malabsorptive Procedures
Combined Restrictive
& Malabsorptive Procedures
Laparoscopic or Minimally
Invasive Surgery
Gastric Restrictive Procedures
Vertical Banded Gastroplasty
Vertical Banded Gastroplasty (VBG) is a purely restrictive
procedure. In this procedure the upper stomach near
the esophagus is stapled vertically for about 2-1/2
inches (6 cm) to create a smaller stomach pouch. The
outlet from the pouch is restricted by a band or ring
that slows the emptying of the food and thus creates
the feeling of fullness.
Advantages
- The primary advantage of this restrictive procedure
is that a reduced amount of well-chewed food enters
and passes through the digestive tract in the usual
order. That allows the nutrients and vitamins (as
well as the calories) to be fully absorbed into
the body.
- After 10 years, studies show that patients can
maintain 50% of targeted excess weight loss.
Risks
- Postoperatively, stapling of the stomach carries
with it the risk of staple-line disruption that
can result in leakage and/or serious infection.
This may require prolonged hospitalization with
antibiotic treatment and/or additional operations.
- Staple-line disruption may also, in the long-term,
lead to weight gain. For these reasons, some surgeons
divide the staple-line wall of the pouch from the
rest of the stomach to reduce the risk of long-term
staple-line disruption.
- The band or ring applied may lead to complications
of obstruction or perforation, requiring surgical
intervention.
- Characteristically, these procedures, while creating
a sense of fullness, do not provide the necessary
feeling of satisfaction that one has had "enough"
to eat.
- Because restrictive procedures rely solely on
a small stomach pouch to reduce food intake, there
is the risk of the pouch stretching or of the restricting
band or ring at the pouch outlet breaking or migrating,
thus allowing patients to eat too much.
- Around 40% of patients undergoing these procedures
have lost less than half their excess body weight.
- As is the case with all weight loss surgeries,
readmission to a hospital may be required for fluid
replacement or nutritional support if there is excessive
vomiting and adequate food intake cannot be maintained.
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