Why the study?
Does ligation of septal arteries produce A-V block and histological changes in the A-V conduction tissue in dogs?
Does ligation of septal arteries produce A-V block and histological changes in the A-V conduction tissue in dogs?
Ligation of septal arteries in dogs demonstrates that complete A-V block is often transient despite marked histological destruction, suggesting only a small cross-sectional area of conduction tissue is needed for normal A-V conduction.
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Anterior septal artery ligation induces AV block far more than posterior in dogs; leaves open the minimal viable conduction tissue area needed clinically.
Hashiba et al. (1965) studied this question.
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