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  • Title: [The role of compromised regional function of the left ventricle in the evolution of postinfarct ventricular thrombosis].
    Author: Penco M, Romano S, Mallus MT, Dagianti A, Fedele F, Dagianti A.
    Journal: Cardiologia; 1993 Mar; 38(3):157-61. PubMed ID: 8339304.
    Abstract:
    Five hundred twenty-nine patients with acute myocardial infarction (AMI) underwent clinical, enzymatic and echocardiographic evaluation. Two-dimensional echocardiography identified 71 patients with left ventricular thrombus (LVT): 63 males and 8 females; mean age 54 +/- 12 years; 70 with anterior AMI and 1 with inferior AMI. The incidence of LVT was 13.8% and 27.7% among anterior AMI. At admission to Coronary Care Unit the patients with LVT showed more extensive left ventricular dysfunction than patients without LVT: Killip classification > or = 2 was 54.5% versus 41.4%, p < 0.05; peak of creatinphosphokinase was 1337 UI/L versus 951 UI/L, p < 0.05; echo-score was 7.2 +/- 2.8 versus 4.7 +/- 3.5, p < 0.01. Serial echocardiograms showed disappearance of LVT in 24 patients. Regarding regional wall motion abnormalities, patients with LVT disappearance showed lower pre-discharge echo-scores than patients with LVT persistence (6.7 +/- 2.2 versus 8.4 +/- 2.9; p < 0.01) although echo-scores at admission were similar in the 2 groups (7.1 +/- 1.1 versus 7.3 +/- 3.4, NS). These results suggest: the importance of extension of myocardial infarction and left ventricular dysfunction in LVT evolution; the importance of treatment limiting infarct size and improving left ventricular function, such as thrombolytic therapy. Anticoagulant therapy could be limited to patients with higher risk of embolization (as the protruding shape of LVT).
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