Anatomic and functional characteristics of a slow posterior AV nodal pathway: role in dual-pathway physiology and reentry.

@article{Medkour1998AnatomicAF,
  title={Anatomic and functional characteristics of a slow posterior AV nodal pathway: role in dual-pathway physiology and reentry.},
  author={D Medkour and Anton E. Becker and Khalif{\'e} Khalif{\'e} and Jacques Billette},
  journal={Circulation},
  year={1998},
  volume={98 2},
  pages={164-74}
}
BACKGROUND The AV node is frequently the site of reentrant rhythms. These rhythms arise from a slow and a fast pathway for which the anatomic and functional substratum remain debated. This study proposes a new explanation for dual-pathway physiology in which the posterior nodal extension (PNE) provides the substratum for the slow pathway. METHODS AND RESULTS The anatomic and functional properties of the PNE were studied in 14 isolated rabbit heart preparations. A PNE was found in all studied… CONTINUE READING
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