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  • Title: Early detection of left ventricular mural thrombi after acute Q wave myocardial infarction using 111In oxine-labelled autologous platelets.
    Author: Salehi NF, Chan WC, McHutchinson J, Lichtenstein M, Andrews JT.
    Journal: Nucl Med Commun; 1990 Dec; 11(12):857-64. PubMed ID: 2126615.
    Abstract:
    Autologous 111In oxine-labelled platelet scintigraphy was used to detect left ventricular thrombi in 20 patients with anterior and 18 patients with inferior Q wave myocardial infarction within 48-72 h. Left ventricular thrombi were found in 8/20 patients with anterior myocardial infarction and in 1/18 patients with inferior myocardial infarction, giving a total incidence of 24%. Patients with left ventricular thrombi were older (64.3 versus 58.2 years), had higher peak creatinine kinase (CK) levels (4523 versus 2749 IU 1-1), lower ejection fraction (19.5 versus 37.8%, P less than 0.005) and were more likely to have an enlarged left ventricle than those without left ventricular thrombi (87.5 versus 54.5%, P less than 0.001). Left ventricular thrombi were found overlying sites of myocardial infarction in 8 out of 9 patients. Apical left ventricular thrombi were 1.7 times more common than septal left ventricular thrombi. All patients received minidose heparin for prevention of deep venous thrombosis. This technique is complementary to echocardiography and may provide additional information in the difficult cases where the decision about full-dose anticoagulation is in doubt.
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