What is it and how does it work?
The Roux-en-Y Gastric Bypass has been endorsed by the National Institutes of Health as an
effective solution to permanent weight loss.
Generally, a small pouch with a two-to-three ounce capacity – and sometimes less – is
created across the stomach. This requires no removal of any of the stomach. Some variations
performed involve creation of pouches so small that staples are not required.
A new hookup in the lower intestine establishes continuation of the entire digestive
tract. Digestion occurs normally since digestive juices from the lower stomach and upper
intestine (duodenum) continue to flow down the digestive tract and mix with food.
Gastric Bypass reduces the size of the stomach significantly, causing nerve endings to
send signals to the brain that the stomach is full after eating as little as one tenth
the amount of food previously consumed.
Unlike other weight loss methods, patients don’t suffer from hunger; in fact, caloric
intake is generally about a moderate 1200 calorie. And unlike the earliest bariatric
procedures, Gastric Bypass permits normal absorption of food, medicines and most
vitamins. Some foods – such as candies and fruit juices containing refined sugar, as well
as milk – are not well tolerated, and should be avoided or consumed in very small
quantities.
Compliance with dietary guidelines after surgery has a significant impact on the outcome
and success of obesity surgery. Following surgery, surgeons generally prescribe vitamins
and nutritional supplements to help assure the patients take in the nutrients they need.
The procedure itself typically takes between 90 minutes and two hours. After a hospital
stay of three to four days, patients can usually return to work in four to six weeks,
depending on their job.