Key result
Intramural Purkinje cells formed a three-dimensional network throughout the mural myocardium in sheep ventricles, whereas no such cells were detected in human ventricles.
Population
15 sheep and 5 human autopsies of noncardiac death
Comparison
Histological examination and 3D reconstruction… vs Human hearts compared with sheep hearts
Design
Preclinical
Authors
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Sheep models warrant caution for human ventricular conduction studies; leaves open species-specific Purkinje network questions in arrhythmia research.
Observational (n=20)
Demonstrates a fundamental anatomical difference in the terminal ventricular conduction system between sheep and humans, with sheep possessing an intramural Purkinje cell network absent in humans.
Ryu et al. (2008) conducted an observational in Noncardiac death (n=20). Sheep hearts vs. Human hearts was evaluated on Prevalence of Purkinje or Purkinje-type cells in the ventricles. Intramural Purkinje cells formed a three-dimensional network throughout the mural myocardium in sheep ventricles, whereas no such cells were detected in human ventricles.
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