Predictors of Clinical Course, Coronary Anatomy and Left Ventricular Function After Recovery From Acute Myocardial Infarction

SUMMARY Patients who survive an acute myocardial infarction (AMI) have significant coronary disease and are at risk for angina pectoris, recurrent myocardial infarction and sudden death. This study provides data gathered prospectively for 106 patients surviving myocardial infarction who had coronary arteriography, left ventriculography and 24-hour electrocardiographic recordings before hospital discharge and were followed 30 months. Univariate analysis showed that low ejection fraction, proximal left anterior descending coronary disease and significant disease in all three coronary arteries were associated with a high risk of sudden cardiac death. The ECG location or type of infarction was not helpful in predicting mortality, reinfarction or continuing angina. Multivariate analysis of 30 clinical and laboratory variables identified previous myocardial infarction and an ejection fraction less than 40 % as the best predictors of mortality; all 13 patients who died were iden-tified by these two variables. Three-vessel coronary artery disease, proximal left coronary disease and com-plicated late hospital-phase ventricular arrhythmias did not provide additional information about mortality once the information provided by the first two variables was considered. Multivariate analysis identified hypertension, three-vessel coronary disease, postinfarction angina pectoris and previous AMI as significant predictors of recurrent AMI during the 30 month follow-up