Key result
Direct bipolar electrogram measurement in dog hearts demonstrated a conduction velocity of 1.0-1.5 m/sec from the bundle of His to bundle branches and 3-4 m/sec in false tendons at 36°C.
Population
Dog hearts (in situ specialized conducting system)
Design
Preclinical
Authors
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Refines models of mammalian His-Purkinje conduction; leaves open validation and translation to human electrophysiology.
The study provides direct measurements of conduction velocity in the specialized conducting system of the mammalian heart, showing faster conduction in false tendons compared to the bundle of His to bundle branches.
Hoffman et al. (1959) studied this question. Direct bipolar electrogram measurement in dog hearts demonstrated a conduction velocity of 1.0-1.5 m/sec from the bundle of His to bundle branches and 3-4 m/sec in false tendons at 36°C.
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