The changes in the coronary artery associated with Kawasaki Disease can be graded.
Parameters:
(1) Z score for coronary artery diameter adjusted for body surface area
(2) absolute diameter in mm
(3) change in Z score during follow-up
Z score =
= ((measured diameter) - (normal diameter)) / (standard deviation)
change in Z score =
= (initial Z score) - (follow-up Z score)
Z Score
Absolute Diameter
Change in Z Score
Classification
< 2
NA
< 1
1 (no involvement)
>= 1
2 (dilation only)
2 to 2.49
2.5 to 4.99
3 (small aneurysm)
5 to 9.99
< 8 mm
4 (medium aneurysm)
>= 10
5 (large aneurysm)
>= 8 mm
Limitation:
• The coronary artery measurements must be accurate.
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Specialty: Infectious Diseases
