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wandering pacemaker

 

Definition: a disturbance of the normal cardiac rhythm in which the site of the controlling pacemaker shifts from beat to beat, usually between the sinus and AV nodes, often with gradual sequential changes in P waves between upright and inverted in a given ECG lead.

Synonym(s): shifting pacemaker

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