Kawasaki disease is an illness that affects young children. It causes irritation and swelling of the skin, mouth, and lymph nodes. More serious illness can also lead to swelling in the coronary arteries. These arteries supply oxygen to the heart. The swelling can cause serious heart problems like a weakening of blood vessel walls ( aneurysm) and heart attack.
The cause of Kawasaki disease is unknown. Some believe it is an infectious agent like a virus. However, Kawasaki does not seem to be contagious. It does not spread through households like the flu.
Kawasaki disease is most common in children less than five year old. It is rare in adults. Children of Asian ethnicity also seem to be more likely to get Kawasaki disease.
Outbreaks of the disease are more common during the winter and early spring months.
Early symptoms in the first 2 weeks may include:
Later symptoms (within 2 weeks of the start of the fever) may include:
There is no specific test to diagnose Kawasaki disease. You will be asked about your child’s symptoms and medical history. A physical exam will be done.
Your child's bodily fluids may be tested. This can be done with:
Images may be taken of your child's heart. This can be done with an echocardiogram.
The electrical activity of your child's heart may be measured. This can be done with an electrocardiogram (EKG).
Kawasaki will go away on its own. However, treatment can help to limit the damage the illness does. The sooner Kawasaki disease is treated, the better the outcome. Treatment is especially important to reduce risk of damage to the heart.
Talk with your doctor about the best treatment plan for your child. Treatment options include the following:
Gamma globulin naturally occurs in the body. It is a protein that helps your body fight infections. This treatment provides a concentrated dose of gamma globulin. It is passed into your bloodstream through an IV.
This treatment may decrease the risk of heart complications. It is most effective when given early in the illness, ideally the first 10 days.
High doses of aspirin may also be advised. Aspirin may help to manage symptoms by:
Note: If your child is given aspirin therapy and develops symptoms of a viral infection, especially chickenpox, call the doctor about stopping aspirin therapy. Aspirin has been associated with Reye's syndrome, a potentially fatal condition.
Steroid or joint inflammation medication may also be recommended. They may be used if inflammation cannot be controlled with other treatments.
If heart complications develop, they will need to be treated. Specific treatment will depend on the specific problem.
American Heart Association
Kawasaki Disease Foundation
Heart and Stroke Foundation of Canada
Kawasaki disease. American Heart Association website. Available at: http://www.heart.org/HEARTORG/Conditions/More/CardiovascularConditionsofChildhood/Kawasaki-Disease_UCM_308777_Article.jsp. Updated March 22, 2013. Accessed November 3, 2014.
Kawasaki disease. Family Doctor—American Academy of Family Physicians website. Available at: http://familydoctor.org/familydoctor/en/diseases-conditions/kawasaki-disease.html. Updated April 2014. Accessed November 3, 2014.
Kawasaki diseases. Kids Health—Nemours Foundation website. Available at: http://kidshealth.org/parent/medical/heart/kawasaki.html. Updated September 2014. Accessed on November 3, 2014.
Kawasaki diseases. Cincinnati Children's Hospital website. Available at: http://www.cincinnatichildrens.org/health/k/kawasaki. Updated January 2013. Accessed November 3, 2014.
Kawasaki disease. EBSCO DynaMed Plus website. Available at: http://www.dynamed.com/topics/dmp~AN~T114968/Kawasaki-disease. Updated April 29, 2016. Accessed September 26. 2016.
Newburger JW, Takahashi M, et al. AHA scientific statement: diagnosis, treatment, and long-term management of Kawasaki Disease. Circulation. 2004;110:2747-2771.
Taubert KA, Shulman ST. Cardiovascular medicine: Kawasaki disease. Am Fam Physician. 1999;59(11).
Last reviewed December 2015 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.