Key result
Among patients with recent myocardial infarction, 32% presented with atypical ECGs and 10% with atypical case histories, with no patient having a completely normal ECG.
Population
215 patients with a diagnosis of recent myocardial infarction (176 first infarction, 39 previous)
Design
Cohort
Authors
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Atypical ECGs occur in one-third of recent MIs; extends diagnostic criteria beyond classic ST changes.
Observational (n=215)
Erikssen et al. (1970) conducted an observational in Recent myocardial infarction (n=215). Recent myocardial infarction was evaluated on Atypical ECGs. Among patients with recent myocardial infarction, 32% presented with atypical ECGs and 10% with atypical case histories, with no patient having a completely normal ECG.
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