The atrioventricular nodal reentrant tachycardia circuit: a proposal.

Abstract

Several models of the atrioventricular nodal reentrant tachycardia circuit have been proposed. Recently, there has been experimental and clinical electrophysiology evidence that the right and left inferior extensions of the human atriventricular node and the atrionodal inputs they facilitate may provide the anatomic substrate of the slow pathway. Inferior nodal extensions appear to constitute a necessary limb of the tachycardia circuit in all forms of atrioventricular nodal reentrant tachycardia and represent the ablation target for all forms of this arrhythmia. Anatomic variations of multiple atrionodal inputs via atrial transitional cells may create the conditions for tachycardia inducibility and differing patterns of retrograde atrial activation. In the present article, we summarize the available evidence and propose a comprehensive model of the tachycardia circuit for all forms of atrioventricular nodal reentrant tachycardia based on the concept of atrionodal inputs.

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@article{Katritsis2007TheAN, title={The atrioventricular nodal reentrant tachycardia circuit: a proposal.}, author={Demosthenes G . Katritsis and Anton E. Becker}, journal={Heart rhythm}, year={2007}, volume={4 10}, pages={1354-60} }