Enteroscopy is a procedure used to examine the small intestine (small bowel).
A thin, flexible tube (endoscope) is inserted through the mouth and into the upper gastrointestinal tract. During a double-balloon enteroscopy, balloons attached to the endoscope can be inflated to allow the doctor to view a section of the small intestine.
In a colonoscopy, a flexible tube is inserted through your rectum and colon. The tube can most often reach into the end part of the small intestine (ileum). Capsule endoscopy is done with a disposable capsule that you swallow.
Tissue samples removed during enteroscopy are sent to the lab for examination. (Biopsies cannot be taken with a capsule endoscopy.)
Do not take products containing aspirin for 1 week before the procedure. Tell your health care provider if you take blood thinners such as warfarin (Coumadin), clopidogrel (Plavix), or apixaban (Eliquis) because these may interfere with the test. Do NOT stop taking any medicine unless told to do so by your provider.
Do not eat any solid foods or milk products after midnight the day of your procedure. You may have clear liquids until 4 hours before your exam.
You must sign a consent form.
You will be given calming and sedating medicine for the procedure and will not feel any discomfort. You may have some bloating or cramping when you wake up. This is from air that is pumped into the abdomen to expand the area during the procedure.
A capsule endoscopy causes no discomfort.
This test is most often performed to help diagnose diseases of the small intestines. It may be done if you have:
In a normal test result, the provider will not find sources of bleeding in the small bowel, and will not find any tumors or other abnormal tissue.
Signs may include:
Changes found on enteroscopy may be signs of disorders and conditions, including:
Complications are rare but may include:
Factors that prohibit use of this test may include:
The greatest risk is bleeding. Signs include:
Reviewed By: Michael M. Phillips, MD, Clinical Professor of Medicine, The George Washington University School of Medicine, Washington, DC. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.