Abstract

I encountered three adult patients with major coronary artery occlusion after Kawasaki disease in childhood, who had developed again acute coronary syndrome of adults in the peripheral branches, such as the 4thsegments, the atrioventricular node artery, and the posterior descending artery, of the right coronary artery. I reviewed their clinical course and coronary angiograms. Their age at onset of acute coronary syndrome ranged from 29 to 33 years. The male patient with a previous anteroseptal myocardial infarction in children had a symptomatic occlusion of the branch of the 4thposterior descending artery at 32 years of age. Acute coronary syndrome occurred in the area of 4thatrioventricular node artery in two female patients. The collateral arteries from the circumflex artery to the 4th atrioventricular node arteries were not clearly injected. It was suspected that they had developed bilateral giant aneurysms after acute Kawasaki disease. Two patients had an acute myocardial infarction due to thrombotic occlusion in a giant aneurysm of the right coronary artery or the left anterior descending artery, and one patient had an asymptomatic coronary occlusion of the right coronary artery and left anterior descending artery in children. Occlusion of peripheral coronary arteries in adulthood can occur in patients with multi-vessel disease caused by Kawasaki disease. Recurrent events of acute coronary syndrome can occur in adults, although its prevalence may be low. Carefulfollow-up in adults is also needed in this population.

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