Normal or fairly normal ECGs 1-2 years after a first myocardial infarction were associated with a lower 5-year incidence of sudden death and total CHD death compared to abnormal ECG patterns.
Cohort (n=412)
Abstract. Electrocardiograms recorded 1–2 years after a first myocardial infarction in 412 males have been classified according to the Minnesota Code, and ECG groups of possible prognostic significance were established. One reference group with normal or fairly normal ECGs; three other groups: (A) with major Q‐changes, (B), with Q‐and T‐changes, and (C), a mixed group with hypertrophy, conduction defects and arrhythmias. The 5‐year incidence of myocardial reinfarction and of acquired angina pectoris was uninfluenced by the ECG pattern at the start of the study. The incidence of sudden death and total CHD death was lower when the ECG at the start of the study was normal or fairly normal.
Leren et al. (Mon,) conducted a cohort in Myocardial infarction (n=412). Abnormal ECG patterns (major Q-changes, Q- and T-changes, or mixed changes) vs. Normal or fairly normal ECGs was evaluated on 5-year incidence of myocardial reinfarction, acquired angina pectoris, sudden death, and total CHD death. Normal or fairly normal ECGs 1-2 years after a first myocardial infarction were associated with a lower 5-year incidence of sudden death and total CHD death compared to abnormal ECG patterns.
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