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  • Title: Myocardial infarction as complication of left atrial myxoma.
    Author: Braun S, Schrötter H, Reynen K, Schwencke C, Strasser RH.
    Journal: Int J Cardiol; 2005 May 11; 101(1):115-21. PubMed ID: 15860393.
    Abstract:
    Although cardiac myxomas are histologically benign, they tend to form emboli and cause intracardiac obstruction, so that they must be classified as potentially fatal tumors of the heart. The probability of arterial embolism is closely correlated with the morphology of the tumor. Thus, villous myxomas are more fragile and form emboli more often. Nuclear spin tomography and echocardiographic cine-mode sequences provide impressive images of the potential for embolism. It appears that coronary embolism may be more frequent in the group of myxoma patients than generally is assumed. These may present as acute myocardial ischemia with the typical clinical symptoms of acute myocardial infarction, as a silent infarct, shock, syncope or as sudden cardiac death. Besides our case report this paper will give an overview on published data on coronary embolism in patients with atrial myxoma. Interestingly there is a tendency for spontaneous recanalization of the obstructed coronary vessels, perhaps because of the tumors' tissue composition. Therefore it is reasonable to perform transoesophageal echocardiography to check out embolic sources like myxoma, when pathogenesis of myocardial infarction remains unclear after coronary angiography.
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