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  • Title: [Early and late prognosis in acute myocardial infarct. A retrospective study in patients admitted to the coronary care unit in the past 10 years].
    Author: De Martini M, Valentini R, Cesana B, Massari FM, Lettino M, Pupilella T, Ambrosini F, Eriano G, La Marchesina U, Lotto A.
    Journal: G Ital Cardiol; 1990 Mar; 20(3):215-26. PubMed ID: 2344899.
    Abstract:
    The prognostic evaluation of the patient with an acute myocardial infarction is one of the most interesting unanswered problems. This is both because of its complexity and its implications in terms of secondary prevention. Several clinical studies have emphasized the reliability of the prognostic evaluation based on data collected during the first 24 hours. We therefore evaluated the prognostic relevance of 26 variables measured in the coronary care unit in 1914 patients admitted to our Unit as a result of acute myocardial infarction during the past 10 years. Twenty-four patients were lost to follow-up so that the evaluation refers to 1,890 patients, 1,506 of whom are males aged between 22 and 99 years (mean 58.1) and 384 are females aged between 29 and 88 years (mean 67.1); thus there is a greater prevalence of males. The sex-related difference in the age distribution is statistically significant. In-hospital mortality was analyzed using univariate and multivariate statistical methods (chi-squared test, multiple logistic regression analysis). The prognostic relevance of the considered variables in relation to the survival was analysed using the logrank test and using Cox's model. The variables associated with a greater risk of in-hospital death were found to be: age, presence of diabetes, anterior location of the infarct, arterial hypotension at admission, Killip class III and IV and the presence of ventricular tachyarrhithmias. In contrast, smokers had a lower in-hospital death risk. As to mortality during the follow-up, there was an association with age, female sex, pre-existent coronary disease, presence of high heart rate on admission, low peripheral tissue perfusion, x-ray documented pulmonary congestion, supraventricular tachiarrhythmias and intraventricular block. In contrast, the presence of obesity was associated with a reduced death risk during the follow-up. During the follow-up the most frequent cause of death was re-infarction, followed by sudden death, death from non-cardiac causes and heart failure.
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