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idionodal

Pronunciation: id'e-o-no'dal

Definition: Arising from the AV node itself; applied to the ventricular rhythm in complete S-A or AV block, or in other forms of AV dissociation, when the AV node rather than an ectopic ventricular focus controls the ventricles. More accurately idiojunctional, it is usually impossible to locate accurately an “AV nodal” rhythm; the AV node is part of the AV junction.

See Also: idioventricular

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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