[Prognosis and factors predicting the long-term prognosis of myocardial infarction]

200 cases of consecutively admitted acute myocardial infarction (AMI), who had survived for at least 2 weeks, were studied prospectively. 193 cases were followed-up for 0.5-27 (average 15) months; 41 of them (21.2%) had cardiac events, including 3 sudden cardiac death (1.6%) and 35 obvious cardiac failure (18.1%). 11 patients died of heart failure and 4 of reinfarction. Before discharge, noninvasive tests were done: LVEF < or = 40%, age > or = 60, maximum value of creatinine-phosphokinase > or = 1000 IU/dl and positive ventricular late potential were the 4 factors of high risk. Patients with 3 or 4 positive risk factors had poorer prognosis, if they were compared with those with one or none.