Myocarditis is an inflammation of the heart’s muscle. Although rare, it can be devastating. Myocarditis can occur with no symptoms and remain undiagnosed.
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In most children, the condition is often caused by a viral infection. Other potential causes include:
Sometimes the cause cannot be found.
Some children may have no symptoms. Those that do may have a variety symptoms that can appear slowly or come on suddenly. Children older than two years old may have fewer symptoms than babies.
Contact the doctor right away if your child has any of these symptoms:
The doctor will ask about your child’s symptoms and medical history. A physical exam will be done. There is no specific test for myocarditis. The diagnosis can usually be made based on the history, physical exam and test results. Many other causes of heart problems must be ruled out before the diagnosis can be made.
Your child's heart will be analyzed with:
Blood tests may also be done to look for signs of infection or inflammation in the heart.
Your child will need bed rest. Physical activity should be avoided. Myocarditis may be relieved by treating the underlying cause if possible:
Medication may also be given to support the heart function and remove extra fluid from the lungs or other body tissues.
American Heart Association
National Heart, Lung, and Blood Institute
Canadian Cardiovascular Society
Myocarditis. Seattle Children's Hospital website. Available at: http://www.seattlechildrens.org/medical-conditions/heart-blood-conditions/myocarditis/# . Accessed June 20, 2013.
Myocarditis.Children's Hospital of Philadelphia website. Available at: http://www.chop.edu/service/cardiac-center/heart-conditions/myocarditis.html . Updated June 2010. Accessed June 20, 2013.
Myocarditis. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed/what.php . Updated March 6, 2013. Accessed June 20, 2013.
Last reviewed December 2013 by Kari Kassir, 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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