A gastrostomy is surgery to insert a tube through the abdomen into the stomach. This tube is most often used for feeding. It may also be used to keep the stomach empty.
A gastrostomy tube is usually placed in the body when a person is unable to take in enough calories by mouth to meet the demands of his or her body. It may be used for long-term nutritional support. Reasons a gastrostomy might be performed include: esophageal atresia, an incomplete development of the esophagusesophageal stricture, or narrowingesophageal cancer swallowing disorders, such as those that develop after a stroke or other nervous system or muscular disordera premature infant with a poor sucking and swallowing effortemptying of the stomach after surgery when a nasogastric tube, or tube placed into the stomach through the nose, is not tolerated
Some people who have this surgery are given general anesthesia so that they are asleep when the gastrostomy tube is inserted. Other people may be given a local anesthetic, meaning that the area of the surgery is numbed with medication, or moderate anesthesia, without the need for a breathing machine. Although the person is not fully asleep, he or she should feel no pain during the procedure.
To insert the gastrostomy tube, the surgeon will make a small cut on the wall of the abdomen and into the stomach. A small catheter with a balloon or mushroom-shaped bugle on the end of it is inserted through the cut. The balloon is inflated to keep it in place in the stomach. The tube, which is made of polyvinylchloride or silicone, is then anchored to the skin.
Sometimes a different procedure, called a percutaneus endoscopic gastrostomy or PEG, is performed. A lighted scope is passed down the throat and through the esophagus. The scope is advanced into the stomach. The light shows the surgeon where to make the incision in the skin and stomach. The tube is placed through the incision. The balloon is inflated, or the bugle is pulled firmly, and the tube is anchored to the skin.
Clinical Nutrition: Enteral and Tube Feeding, 2nd edition, 1990
Mosby's Clinical Nursing, 4th edition, 1994
Harrison's Principles of Internal Medicine, 1998, Fauci et al.