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Chest, Vol 74, 570-571, Copyright © 1978 by American College of Chest Physicians

ARTICLES

A-V nodal reentrant tachycardia vs accelerated A-V junctional rhythm in acute inferior myocardial infarction

RJ Sung and A Castellanos

This report described initiation of A-V nodal reentrant tachyycardia in a patient with acute inferior myocardial infarction. The onset of tachycardia was preceded by an abortive A-V nodal Wenckebach periodicity. A-V nodal ischemia with or without vagotonia was implicated as the cause of induction of critical functional dissociation between the two A-V nodal conduction pathways. Since the tachycardia manifested its rate between 95-110 beats/min during the evolutionary phase of acute inferior myocardial infarction, it simulated, electrocardiographically, an accelerated A-V junctional rhythm. Analysis of the onset of tachcardia was of diagnostic importance.




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Copyright © 1978 by the American College of Chest Physicians.