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Eosinophilic myocarditis complicated by acute myocardial infarction--a case report
K Yamashita1, T Nakamura, K Iio
1Second Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Kitakyushu, Fukuoka, Japan.
Insights
Eosinophilic myocarditis can cause acute myocardial infarction-like symptoms due to coronary artery thrombus. This case highlights thrombus formation in small coronary arteries during active eosinophilic myocarditis.
Area of Science:
- Cardiology
- Pathology
Background:
- Eosinophilic myocarditis is an inflammatory heart condition.
- It can mimic acute myocardial infarction, presenting with chest pain and ECG changes.
Abstract:
The authors report a patient with eosinophilic myocarditis who developed severe chest pain with marked elevation of the ST segment on the electrocardiogram, which led them to suspect the presence of acute myocardial infarction. Emergency coronary angiography showed numerous occlusions and stenoses at the distal right and left coronary arteries, especially affecting the latter, owing probably to thrombus. The angiographic findings in this case demonstrate the formation and obstruction of thrombus in the small coronary arteries in a patient in the acute necrotic stage of eosinophilic myocarditis, believed to be the first such case reported.