What are the diagnostic criteria for incomplete Kawasaki disease?

Updated: Jul 29, 2018
  • Author: Tina K Sosa, MD; Chief Editor: Russell W Steele, MD  more...
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Answer

If 3 or more supplemental laboratory criteria are positive, a diagnosis of incomplete KD is made. The child should have an echocardiogram and be treated. Alternatively, if a patient has a positive echocardiogram with or without positive supplemental laboratory criteria, the patient should be treated.

If fewer than 3 supplemental laboratory criteria are positive, the child is monitored clinically. Re-evaluation of these laboratory studies takes place if fevers persist, and an echocardiogram is performed if skin peeling develops. [56]

As alluded to above, some patients have been found to not meet the laboratory criteria but developed coronary artery abnormalities seen on echocardiography that were consistent with KD. [65]  Clinical judgment is required to determine if and when supplemental laboratory criteria should be strictly followed versus when an echocardiogram should be obtained regardless of laboratory results.


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