Gastric Bypass

Different types of gastric bypass surgeries

Weight loss surgeries are either mal-absorptive meaning they reduce rate of calorie absorption or restrictive. Restrictive surgery involves restricting the amount of food you can hold.The gastric bypass method involves combining these two effects in the same procedure. 

In particular gastric bypass involves reducing the functional size of the stomach into a small pouch, the size of a golf ball to the size of a tennis ball. This reduces calorie intake as well as appetite. Due to the small stomach you eat less. And since it fills with just a small amount of food your brain gets the signaling that your stomach is full. 

It further involves re-arranging the intestines to allow the food eaten to bypass most of the absorption hence the name gastric bypass. It is this severe mutilation of the digestive system that makes Fat Loss 4 Idiots (lose 40 lbs with Calorie Shifting ) uneasy about weight loss surgery. The book finds that nearly anyone can loose weight with an appropriate weight loss program without having to undergo surgery. 

Though, losing weight with this kind of surgery is usually drastic and dramatic. The procedures usually end up having both a physiological as well as psychological effect which leads to this huge drop in weight. 

Basically there are three types of bypass procedures 

Roux-en-Y Stomach Surgery
In this procedure, the upper part of the stomach is separated from the rest of the stomach using weight loss staples or a plastic bonding. This creates the small pouch. The surgeons then connect the small pouch directly to the lower end of the smaller intestines. 

This way the food comes through the oesophagus after swallowing into the small stomach pouch and out through the lower end of the small intestines called Jejunum and finally to the large intestines( Colon). 

The procedure allows the food to by-pass the upper end of the small intestines (duodenum). It also has the distinctive "Y" connection of the "amputated" intestine (duodenum) where it is reconnected to the rest of the intestines to deliver digestive juices. 

Since it’s at the duodenum that a lot of dietary fat is absorbed the procedure help further reduce calorie intake by reducing fat absorption. Roux-en-Y and it’s close variance are the most common bypass surgeries. 

Mini-Gastric Bypass Surgery
This procedure is usually done laparoscopically and takes only about 30 minutes. Unlike most gastric bypass, the mini-procedure does not create a small pouch. Rather it staples the stomach into a tube on the less curved side of stomach which is directly attached to the lower end of the intestines. 

The process allow minimal cutting of the intestines hence the term mini otherwise it is similar to Roux-en-Y It has the advantage of shorter hospital stay and is even insinuated to have better results than Roux-en-Y

Biliopancreatic Diversion
This procedure is more mutilating than the other two. It involves completely removing the large secluded section of the stomach. The small pouch is then also attached to the lower end of the small intestines. The upper end of the intestines that is usually normally connected to the stomach is sealed and left un-attached within the abdominal cavity. 

As opposed to all other gastric bypass procedures in this operation about half of the stomach is removed completely. (Note not nearly the whole stomach). This is done vertically rather than horizontally which is normally the case when creating the small stomach pouch. 

Vertical removal is nearly similar to the mini gastric bypass, only that in this case the stomach is larger than a narrow tube. Similarly unlike the other procedures, the natural pyloric valve that controls the release of food from the stomach is left intact. 

Also left intact is some significant length of upper small intestines (duodenum). This is unlike the other procedures that completely eliminate and bypass the duodenum. This short duodenum is connected directly to the lower end of intestines bypassing the middle intestines. 

This procedure has two slightly varying forms. 

By the very nature of gastric bypass the procedure are usually irreversible, so careful consideration should be put into choosing surgery to lose weight. And as a technique bariatric surgery is really a support structure to help you change your lifestyle. 

The fact that these procedures are irreversible is a primary reason that  Fat Loss 4 Idiots (lose 40 lbs with Calorie Shifting ) is apprehensive of weight loss surgery. The program  cautions against being dependent on support structures. To learn more - In the next page, you learn about Calorie Shifting  You will discover;

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