Population
6 cases of atrioventricular block associated with coronary disease
Comparison
Serial section study of the conduction systems vs Acute versus chronic A-V block
Design
Case_series
Authors
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Highlights need for caution in attributing chronic AV block solely to ischemia; leaves open mechanical factors for targeted investigation.
Pathological analysis reveals that acute AV block in coronary disease is primarily ischemic, while chronic AV block involves mechanical factors such as fibrosis and calcification.
Lev et al. (1970) studied this question.
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