Gastric Bypass Surgery
The Gastric Bypass, Roux en-Y is considered the “gold standard” of
the weight loss surgery operations. It sets the benchmark to which
all other operations are compared. The Gastric Bypass operation has
been performed since the 1960’s and has been proven in numerous
studies to result in durable weight loss and an improvement in
weight-related medical illnesses. The obesity-related medical
problems that may be improved or cured with gastric bypass include:
Type 2 diabetes, hypertension, high cholesterol, arthritis, venous
stasis disease, bladder incontinence, liver disease, certain types
of headaches, heartburn, sleep apnea and many other disorders.
Furthermore, this operation has resulted in marked improvements in
quality of life.
Gastric bypass achieves
its effects by creating a very small stomach pouch from the existing
stomach. The normal stomach is about the size of a football and the
new pouch is about the size of a golf ball. The small intestine is
cut about 15 inches below the stomach, and is re-arranged so as to
provide an outlet from the new pouch. The remaining part of the
bypassed stomach is responsible for producing some of the digestive
juices that are responsible the breakdown of food. These digestive
juices travel down the intestines and mix with food about 60 inches
from the new pouch. The digestive and absorptive processes begin
after the gastric juices mix with food.
The operation works by reducing food intake, reducing the feeling
of hunger and reducing the available intestinal surface area where
calories are absorbed. Ghrelin, an
appetite-stimulating hormone secreted by the stomach, was first
identified by Japanese researchers in 1999. According to the
various scientific studies, dieting raises ghrelin levels,
increasing the feeling of hunger, while gastric bypass sharply
reduces it, to almost undetectable levels, virtually eliminating
The result of gastric bypass is:
Decrease in appetite and cravings.
Decrease in the amount
of food necessary to achieve satiety.
Decrease in the amount
of calories that are absorbed from the meals consumed
It is important to recognize that even though the meal portion
size is small, there is little to no hunger, and little to no
feeling of being deprived.
The gastric Bypass provides an excellent tool for gaining
long-term control of weight, without the hunger or cravings usually
associated with small portions, or with dieting. Most patients
achieve a weight loss of 75-80% of excess body weight, and long-term
maintenance of weight loss is very successful. The success,
however, does require adherence to simple and straightforward life