Myocardial Assessment in School-Aged Children with Past Kawasaki Disease

Area of Science:

• Pediatric Cardiology
• Cardiovascular Research
• Rheumatology

Background:

• Kawasaki disease (KD) is a significant pediatric illness primarily affecting coronary arteries.
• Myocardial injury in KD can result from inflammation and ischemia, but long-term functional outcomes remain unclear.
• Assessing the lasting impact of KD on cardiac health is crucial for patient management.

Purpose of the Study:

• To evaluate the long-term myocardial function in school-aged children with a history of Kawasaki disease.
• To compare current echocardiographic findings with baseline data from the initial KD presentation.
• To identify potential persistent cardiac abnormalities in KD survivors.

Main Methods:

• A cohort of 67 school-aged children with a history of KD underwent echocardiographic assessments.
• Measurements included coronary artery dimensions and various parameters of myocardial function.
• Data were compared between the initial diagnosis phase and the long-term follow-up period.

Main Results:

• Significant differences were observed in interventricular septum thickness, LV internal diameters, mitral inflow velocities (E and A), E/A ratio, and E/E' ratio between baseline and follow-up.
• Coronary Z-scores for the left main artery, left anterior descending, and right coronary artery showed no significant changes.
• Findings suggest a potential for diastolic dysfunction in school-aged children with a past KD diagnosis.

Conclusions:

• School-aged children with a history of Kawasaki disease may exhibit diastolic dysfunction.
• Long-term monitoring of myocardial function is recommended for children diagnosed with KD.
• Early detection and management of cardiac abnormalities can improve outcomes for KD patients.