Large Thrombus in the Ascending Aorta Successfully Treated by Thrombolysis:An Unusual Cause of Acute Massive Myocardial Infarction

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A 52-year-old woman suffered from acute massive myocardial infarction in association with a large thrombus in the ascending aorta. She was a moderate smoker and was taking hormone supplement therapy for menopausal hormone insufficiency and the contraceptive pill for endometriosis. Cardiac angiography revealed a large mobile filling defect close to the orifice of the left coronary artery, but the left coronary artery could not be visualized. Her hemodynamic condition was impaired so greatly that intraarterial counterpulsation and intravenous thrombolysis was immediately performed. The thrombus dissolved in 1 h and recanalization of the left coronary artery was achieved without serious systemic thromboembolism. She has been doing well with no cardiac events for 7 years. This is the second report of a large thrombus in ascending aorta being the cause of acute myocardial infarction in the whole territory of the left coronary artery, and the first to diagnose such a thrombus antemortem and treat it successfully. (Jpn Circ J 2001; 65: 572 - 574)
社団法人　日本循環器学会の論文