Population
14 autopsied hearts with complete AV block
Design
Case_series
Authors
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Supports lesion-QRS correlation in AV block; leaves open whether this informs pacing site selection in practice.
Histopathological analysis confirms that the anatomical level of the conduction system lesion in complete AV block dictates the QRS morphology, with proximal lesions yielding narrow QRS and distal lesions yielding wide QRS.
Keisuke Fukuda (1978) studied this question.
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