Mortality and risk indicators for death during five years after acute myocardial infarction among patients with and without ST elevation on admission electrocardiogram

Cardiology. 1998;89(1):33-9. doi: 10.1159/000006741.


We related observations in the electrocardiogram (ECG) on admission to hospital among consecutive patients hospitalized in one single hospital with acute myocardial infarction (AMI) and related the prognosis during the following 5 years to these observations.

Results: Of 863 patients, 63% had ECG signs of myocardial ischemia, but only 41% had ST elevation on ED admission. Patients with ST elevation had a 5-year mortality of 44% as compared with 58% in patients without ST elevation (p < 0.001). Patients with the highest mortality were those with a pathologic ECG including signs of previous AMI, bundle branch block and pacemaker ECG, but with no ECG sign of acute ischemia. Patients with the lowest mortality were those with a nonpathologic ECG on admission.

Conclusion: Among consecutive patients hospitalized with AMI, less than half had ST elevation on admission to hospital. These patients had a lower mortality during 5 years of follow-up than patients without ST elevation.

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Electrocardiography*
  • Female
  • Follow-Up Studies
  • Humans
  • Male
  • Middle Aged
  • Myocardial Infarction / mortality*
  • Myocardial Infarction / physiopathology
  • Prognosis
  • Risk Factors
  • Survival Analysis