Why the study?
Are lethal dysrhythmias in sudden cardiac death due to direct ischemic injury of the conduction system?
Population
49 patients who died of sudden cardiac death from coronary heart disease, including 39 with established…
Comparison
Histopathological examination of the conduction… vs Patients with established AMI versus patients…
Design
Cross-sectional
Authors
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Supports myocardial electrical instability over conduction tissue injury in SCD mechanisms; hypothesis-generating and leaves open need for prospective confirmation.
Are lethal dysrhythmias in sudden cardiac death due to direct ischemic injury of the conduction system?
The scarcity of acute ischemic lesions in the conduction system of sudden cardiac death victims suggests that lethal arrhythmias arise from electrical instability of the ischemic contractile myocardium rather than direct conduction system injury.
J. T. Lie (1975) studied this question.
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