Ileus is a type of non-mechanical bowel obstruction. It results when peristalsis stops. Peristalsis is the wavelike contractions that help push stool through the colon and small bowel.
Small Bowel Distention
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Ileus is caused by damage to the nerves controling the intestines from surgery, infection, low blood flow, trauma, medications or changes in the body chemistry.
Factors that increase your risk of getting ileus include:
Symptoms of ileus may include:
Your doctor will ask about your symptoms and medical history. A physical exam and blood tests will be done. A diagnosis of ileus is usually based on symptoms and results of imaging studies.
Images may be taken of your bodily structures. This can be done with:
The lining of your colon may need to be examined. This can be done with colonoscopy .
If ileus was caused by surgery, stress or trauma it will usually resolve within 48 to 72 hours. In other cases, the disease or abnormality that caused the ileus needs to be treated. This may involve adjusting the dose of or stopping a medication, treating an infection, or replacing electrolytes.
Other treatments may be used to help ease symptoms. These may include:
Patients who suffer from ileus should not be fed until the ileus has resolved.
A tube is inserted through the nose and into the stomach to remove digestive fluids. This will help relieve pain and bloating.
Fluids and electrolytes are given by vein to avoid dehydration.
There are medications that increase peristalsis, such as neostigmine and tegaserod, that can be used in selected patients to help ileus resolve.
A flexible tube may be inserted into the colon to relieve pressure.
Rarely, surgery is required if there is a perforation or other abnormality causing the ileus.
American Gastroenterological Association
International Foundation for Functional Gastrointestinal Disorders
Canadian Digestive Health Foundation
The Canadian Association of Gastroenterology (CAG)
Colonic ileus. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed. Updated March 5, 2013. Accessed July 25, 2013.
Intestinal obstruction and ileus. Patient UK website. Available at: http://www.patient.co.uk/doctor/Intestinal-Obstruction-and-Ileus.htm. Updated April 20, 2010. Accessed July 25, 2013.
Last reviewed Julne 2014 by Michael Woods, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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