Predictive value of equilibrium radionuclide ventriculography for long term prognosis of acute myocardial infarction

The predictive value of equilibrium radionuclide ventriculography (ERNV) for the long term prognosis of acute myocardial infarction (AMI) was studied. 89 patients with AMI examined by ERNV 4∼6 weeks after onset of AMI were studied and followed up for 23(12∼42) months. According to patients' prognosis, two groups were divided. Group 1 was patients with sudden cardiac death (SCD) or heart failure (HF) (n = 20). Group 2, patients without any cardiac events (n = 69). These patients were paired with the age and sex (ratio: 1:2). 17 factors which may affect the long-term prognosis of AMI were analyzed. results showed: 1. The incidence of SCD was 2.2%. 2. Excluding the age and sex factor, the lateral wall ejection fraction of left ventricle (LAT-EF) and the level of serum CK-MB were two independent main effective risk factors of the long-term prognosis of AMI. 3. Prognosis index formula: Z = 2.467 (LAT-EF) + 0.760(CK-MB) was established. The larger the value of Z, the higher the incidence of SCD or HF. ERNV played an important role on predicting long term prognosis of patients with AMI