Gastric
Reduction - Duodenal Switch (GRDS) GRDS is
a hybrid surgical procedure that has two aspects that reduce
weight.
- The smaller stomach size limits the amount of food that
can be taken in to about 120-150cc (1/2-3/4C).
- The small bowel is re attached in such a fashion as to
keep the biliopancreatic juices away from the food until
the last portion of the small bowel, enabling limited absorption
of the food that is eaten. The stomach is decreased in size
by doing a sleeve Gastrectomy that takes proportional amounts
of areas of the stomach that make important enzymes and
chemicals. The hallmark of GRDS is the preservation of the
pyloric valve. The pyloric valve is at the last portion
of the stomach and acts as a gateway to the small bowel.
The food product needs to be of the right chemical and mechanical
consistency before the pyloric valve will allow the food
product to progress into the small bowel. The appendix and
the gallbladder are also removed.
Image courtesy of ETHICON
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