Identifying Kawasaki Disease With a Low Coronary Artery Aneurysm Risk

Area of Science:

• Pediatrics
• Cardiology
• Immunology

Background:

• Kawasaki disease (KD) poses a risk for coronary artery aneurysm (CAA), necessitating targeted treatment for high-risk patients.
• Characteristics of low-risk KD patients for CAA are less understood, impacting treatment strategies.

Purpose of the Study:

• To characterize Kawasaki disease patients with a low risk of coronary artery aneurysm development.
• To identify predictors and create a decision tree for stratifying KD patients by CAA risk.

Main Methods:

• Secondary analysis of the Post RAISE prospective cohort study in Japan.
• Multivariable logistic regression identified independent predictors of CAA.
• A decision tree was developed to define a low-CAA-risk KD subpopulation.

Main Results:

• Independent predictors of acute-phase CAA included a baseline maximum Z score >2.5, age <12 months, IVIG nonresponsiveness, low neutrophils, high platelets, and high C-reactive protein.
• The decision tree identified 679 KD patients with a low acute-phase CAA incidence (4.1%) and no medium or large CAAs.

Conclusions:

• A distinct subpopulation of Kawasaki disease patients with a low risk of coronary artery aneurysm was identified.
• This low-risk group represents approximately a quarter of the studied cohort, aiding in personalized treatment approaches.