With this procedure the stomach is divided into two sections. One of the two sections is a new, smaller pouch that will act as the new stomach. The new stomach has a capacity of roughly two ounces, as opposed to its former size of about two quarts. This drastic reduction limits your stomach's ability to hold food, making you feel full after eating only a small amount, requiring you to eat substantially less.
Bypassing part of the intestine reduces how much food and nutrients are absorbed. This leads to weight loss.
In normal digestion, food passes through the stomach and enters the small intestine, where most of the nutrients and calories are absorbed. It then passes into the large intestine (colon), and the remaining waste is eventually excreted.
In the Medici Roux-en-Y gastric bypass, only a small part of the stomach is used to create a new stomach pouch, roughly the size of an egg. The smaller stomach is connected directly to the middle portion of the small intestine (jejunum), bypassing the rest of the stomach and the upper portion of the small intestine (duodenum).
This procedure can be done by making a large incision in the abdomen (an open procedure) or by making a small incision and using small instruments and a camera to guide the surgery (laparoscopic approach).
In both open and laparoscopic Roux-en-Y bypass, the stomach is divided creating a small pouch, which is closed by several rows of staples. The remaining portion of the stomach is not removed but is "bypassed" and plays a diminished role in the digestive process. Weight loss occurs as a result of reduction of calories, alteration in gut appetite hormones, and decreased nutrient absorption.
The Roux-en-Y bypass is considered the "gold standard" for Bariatric surgery (weight loss surgery) and hundreds of these have been performed at our clinic in Tijuana Mexico.
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