Myocardial Infarction in a Patient with Prosthetic Aortic Valve

A 45- year old man with a history of aortic valve replacement presented with acute chest pain which was diagnosed to be anterior wall myocardial infarction. he received thrombolytic therapy with streptokinase. echocardiography and fluoros-copy showed normally functioning ball and cage aortic prosthesis. coronary arteriography showed globular filling defect in midportion of left anterior descending coronary artery, most probably embolized thrombus. the patient underwent medical treatment especially warfarin with higher range oflnr without any intervention. he had a smooth in-hospital course and uneventful recovery.