Acute myocardial infarction after brief antithrombotic interruption in Kawasaki disease-related coronary aneurysm

We report a 20-year-old man with a history of Kawasaki disease-related coronary aneurysm who developed acute myocardial infarction after one week of discontinuing aspirin and warfarin. This case highlights the catastrophic risk of even brief interruption of antithrombotic therapy in patients with Kawasaki disease-related coronary aneurysms. It also suggests that vulnerability during transition to adult care, particularly in terms of self-management and medication adherence, may contribute to such events.