(Other terms that may be used include: Gastric Banding Surgery, Adjustable Gastric Banding, Vertical Banded Gastroplasty)
Gastric stapling (restrictive) surgery is a type of bariatric surgery (weight loss surgery) procedure performed to limit the amount of food a person can eat. Bariatric surgery is the only option today that effectively treats morbid obesity in people for whom more conservative measures such as diet, exercise, and medication have not been effective. [Morbid obesity is defined as a Body Mass Index (BMI) of 40 or more.]
Bariatric surgery works in one of three ways:
Currently, in the U.S., there are five types of bariatric surgical procedures generally used to obtain continued weight loss. The purely restrictive bariatric surgeries are called gastric banding or gastric stapling. The biliopancreatic diversion with or without duodenal switch (BPD-DS) is mainly a malabsorptive bariatric surgery. Gastric bypass surgery is a combination of both restriction and malabsorption.
In gastric banding surgery, no part of the stomach is removed and the digestive process remains intact. Staples and/or a band are used to separate the stomach into two parts. The top part is a very small pouch that can hold about one ounce of food. The food from this “new” stomach empties into the lower part of the stomach and then resumes the normal digestive process. Because the size of the stomach is reduced so dramatically, this type of procedure is referred to as a restrictive procedure.
After gastric stapling or banding, a person can eat only about three-quarters to one cup of food. The food must be well-chewed. Eating more than the stomach pouch can hold may result in nausea and vomiting. Restrictive procedures pose fewer risks than gastric bypass procedures, but they are also less successful because continuous overeating can stretch the pouch so that it accommodates more food.
The types of gastric banding procedures include:
VBG and AGB may be performed with a laparoscope rather than through an open incision in some patients. This procedure uses several small incisions and three or more laparoscopes—small thin tubes with video cameras attached—to visualize the inside of the abdomen during the operation. The doctor performs the surgery while looking at a TV monitor. Laparoscopic gastric surgery usually reduces the length of hospital stay and the amount of scarring, and often results in quicker recovery than an “open” or standard procedure.
Persons with a BMI of 60 or more or persons who have already had some type of abdominal surgery are usually not considered as a candidate for the laparoscopic technique.
Digestion is the process by which food and liquid are broken down into smaller parts so that the body can use them to build and nourish cells. Digestion begins in the mouth, where food and liquids are taken in, and is completed in the small intestine. The digestive tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus.
The stomach is where the three mechanical tasks of storing, mixing, and emptying occur. Normally, this is what happens:
The food is then digested in the small intestine and dissolved by the juices from the pancreas, liver, and intestine, and the contents of the intestine are mixed and pushed forward to allow further digestion.
Bariatric surgery is performed because it is currently the best treatment option for producing lasting weight loss in obese patients for whom nonsurgical methods of weight loss have not been effective.
Potential candidates for bariatric surgery include:
Because the surgery can have serious side effects, the long-term health benefits must be considered and found greater than the risk. Despite the fact that some surgical techniques can be done laparoscopically with reduced risk, all bariatric surgery is considered to be major surgery.
Although not all risks with each procedure are fully known, bariatric surgery does help many people to reduce or eliminate some health-related obesity problems. It may help to:
Surgery for weight loss is not a universal remedy, but these procedures can be highly effective in people who are motivated after surgery to follow their doctor’s guidelines for nutrition and exercise and to take nutritional supplements.
There may be other reasons for your doctor to recommend a gastric banding procedure.
As with any surgical procedure, complications may occur. Some possible complications include, but are not limited to, the following:
Risks specific to vertical gastric banding include breakdown of the line of staples and erosion of the band. Rarely, stomach juices may leak into the abdomen and emergency surgery may be needed. The most common complication that may develop with adjustable gastric band surgery is that the stomach pouch enlarges. Band slippage and saline leaks are also risks specific to adjustable gastric band surgery.
Risk may be reduced with a laparoscopic banding procedure because there is no incision in the stomach wall.
There may be other risks depending on your specific medical condition. Be sure to discuss any concerns with your doctor prior to the procedure.
Restrictive gastric banding surgery requires a stay in the hospital. Procedures may vary depending on the type of procedure performed and your doctor’s practices.
Gastric banding surgery is generally performed while you are asleep under general anesthesia.
Generally, gastric banding surgery follows this process:
After the procedure, you will be taken to the recovery room for observation. Once your blood pressure, pulse, and breathing are stable and you are alert, you will be taken to your hospital room. Weight loss surgery usually requires an in-hospital stay of several days.
You may receive pain medication as needed, either by a nurse or by administering it yourself through a device connected to your intravenous line.
You will be encouraged to move around as tolerated while you are in bed, and then to get out of bed and walk around as your strength improves. It is important for you to move around soon after y our surgery to prevent the formation of blood clots.
At first you will receive fluids through an IV. After a day or two you will be given liquids, such as broth or clear juice, to drink. As you are able to tolerate liquids, you will be given thicker liquids, such as pudding, milk, or cream soup, followed by foods that you do not have to chew, such as hot cereal or pureed foods. Your doctor will instruct you about how long to eat pureed foods after surgery. By one month after your procedure, you may be eating solid foods.
You will be instructed about taking nutritional supplements to replace the nutrients lost due to the reconstruction of the digestive tract.
Before you are discharged from the hospital, arrangements will be made for a follow-up visit with your doctor.
Once you are home, it will be important to keep the surgical area clean and dry. Your doctor will give you specific bathing instructions. The stitches or surgical staples will be removed during a follow-up visit.
The incision and abdominal muscles may ache, especially with deep breathing, coughing, and exertion. Take a pain reliever for soreness as recommended by your doctor. Aspirin or certain other pain medications may increase the chance of bleeding. Be sure to take only recommended medications.
You should continue the breathing exercises used in the hospital.
You should gradually increase your physical activity as tolerated. It may take several weeks to return to your previous levels of stamina.
You may be instructed to avoid lifting heavy items for several months in order to prevent strain on your abdominal muscles and surgical incision.
Weight loss surgery can be emotionally difficult because you will be adjusting to new dietary habits and a body in the process of change. You may feel especially tired during the first month following surgery. Exercise and attending a support group may be helpful at this time.
Notify your doctor to report any of the following:
Following gastric banding surgery, your doctor may give you additional or alternate instructions, depending on your particular situation.
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