PMID: 9539822Apr 16, 1998Paper

Characteristics of patients hospitalized for myocardial infarction in France with respect to left ventricular dysfunction. Results of the USIK study

Archives des maladies du coeur et des vaisseaux
L VaurJ P Cambou

Abstract

Patients admitted in coronary care units, in november 1995, for confirmed acute myocardial infarction within 48 hours of symptoms onset were included in this study. The choice of measurement of left ventricular ejection fraction (LVEF) was left to the physician in charge. Only investigations performed within the first 8 days were taken into consideration. In cases with multiple investigations, the following order of preference was applied: a) angiographic LVEF, b) isotopic LVEF, c) echocardiographic ejection fraction by Simpson's method, d) echocardiographic ejection fraction by Berning's method, e) semi-quantitative visual echocardiographic evaluation. 2563 patients were included (1827 males and 736 females, mean age 67 years). A quantitative evaluation of LVEF was obtained in 1477 patients (57%) whereas 2 053 patients (80%) underwent at least a semi-quantitative evaluation. The average LVEF was 50% and 17% of patients had an ejection fraction < or = 35%. Patients with LVEF < or = 35% were older, less likely males, non smokers and diabetics. Prior heart failure, previous myocardial infarction and anterior location in infarction were more frequent. Heart failure was more frequent in patients with LVEF < or = 35% (75 vs 23%, p <...Continue Reading

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