Qu’est-ce une étude du tractus gastro-intestinal supérieur ?
An upper gastrointestinal (UGI) study, also called a UGI series, is when X-rays are used to look at the gastrointestinal (GI) tract. A simple UGI study examines the esophagus, stomach, and the beginning of the small intestine. A UGI study with a “small bowel follow-through” or “small bowel series” evaluates the esophagus, stomach, and the entire small intestine.
Pourquoi mon enfant a-t-il besoin d'une étude du tractus gastro-intestinal supérieur ?
A UGI study looks for problems with the UGI tract such as narrowing of the esophagus or twisting of the intestines (called intestinal malrotation). Symptoms of vomiting, difficulty swallowing, abdominal pain, or poor weight gain are some reasons why your provider may order an abdominal ultrasound.
Comment se passe une étude du tractus gastro-intestinal supérieur ?
A UGI study is performed by a radiology department. The radiology technician will ask your child to drink a substance called barium. Barium is a dry, white, chalky powder that is mixed with water to make a milkshake-like drink, usually chocolate or strawberry flavored.
The barium appears white on X-rays. Barium coats the inside of the GI tract so that the function, size, and shape of the GI tract can be seen. X-rays will be taken of the esophagus, stomach, and the small intestine as the barium moves through your child’s body.
Depending on the type of UGI study and the areas evaluated, the study usually lasts between 15 minutes and 1 hour
Que se passe-t-il avant une étude du tractus gastro-intestinal supérieur ?
You will be given instructions by your healthcare provider or the radiologist about when your child needs to stop eating and drinking before the exam. Your child’s stomach needs to be empty of food before a test to examine the GI tract.
Que se passe-t-il après une étude du tractus gastro-intestinal supérieur ?
Your child will be able to resume a normal diet and activity. Your child may feel bloated or crampy or may experience some constipation due to the barium. Encourage your child to drink water to help pass a bowel movement. Due to the barium, your child’s bowel movements may be lighter or white in color for 48–72 hours after the study.
Quels sont les risques liés à une étude du système gastro-intestinal supérieur ?
There is minimal risk associated with a UGI study. Constipation or difficulty passing bowel movements can be a side effect of the barium. There is a small amount of radiation exposure when the X-rays are taken.
Some patients may be allergic to the flavoring added to some brands of barium. If your child has experienced allergic reactions after eating chocolate, certain berries, or citrus fruit, be sure to tell your provider or the technologist before the procedure.
Que faut-il surveiller après une étude du tractus gastro-intestinal supérieur ?
Watch for fever, difficulty passing bowel movements, abdominal distention (stomach appearing large and hard to the touch), or abdominal pain. Contact your healthcare provider if your child is having these symptoms or is unable to pass bowel movements after a couple of days.
Hiorns, M.P. (2011). Gastrointestinal tract imaging in children: current techniques. Pediatric Radiology, 41, 42-54.
Authors: K. Kaufman, FNP; E. Burch, CPNP; K. Rowell, FNP