Key result
An electrocardiographic pattern of massive myocardial infarction was observed in a patient with a normal heart at autopsy, confirming that ECG changes may not parallel histologic changes.
Case Report (n=1)
This case highlights that surface electrocardiogram changes can mimic massive myocardial infarction without corresponding histologic changes, such as in cases of severe pneumonia and vascular collapse.
ECG MI patterns warrant histologic or imaging confirmation in acute illness; leaves open mechanisms and prevalence of ECG-histology discordance.
A case of a 67-year-old patient with an electrocardiographic pattern of a massive myocardial infarction but with a normal heart at autopsy is described. The cause of death was purulent pneumonia complicated by peripheral vascular collapse. The findings in our case simply reconfirm the well-established principle that the surface electrocardiogram mirrors the electrical phenomena of the heart, which may or may not parallel histologic changes.
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Mamlin et al. (1964) conducted a case report in Electrocardiographic pattern of massive myocardial infarction (n=1). Electrocardiographic pattern of massive myocardial infarction was evaluated on Histologic changes at autopsy. An electrocardiographic pattern of massive myocardial infarction was observed in a patient with a normal heart at autopsy, confirming that ECG changes may not parallel histologic changes.
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