Laparoscopic Gastric Bypass
The numbers are impressive. Gastric bypass patients can lose high percentages of excess body weight, and many are able to permanently remain at a healthy weight. That may be why it's the most popular bariatric surgery choice.
The gastric bypass works two ways: by physically reducing the stomach's size, and by causing physiological changes to your digestion.
The most common bypass is called a Roux-en-Y. The stomach is divided into two parts, with the new, smaller stomach pouch preventing large food intakes. This new stomach is then attached to the lower portion of the small intestine, so the rest of the stomach is "bypassed" during digestion.
There's another advantage to the gastric bypass. By changing the configuration of the digestive system, fewer calories are absorbed into the body. So you physically eat smaller portions and gain less weight from the food you do eat. This results in rapid weight loss following surgery.
While this is considered major surgery, the benefits are substantial. Weight-related illnesses like diabetes may be reversed within days of surgery. And the reduced calorie absorption makes it easier to continue losing weight. Most gastric bypasses can be performed laparoscopically (with smaller incisions) to cut down on pain and recovery time.
A common side effect is "dumping," which results in an inability to eat sweets. It occurs when simple sugars enter the bloodstream too quickly, causing nausea, diarrhea and weakness.