Ventricular Tachycardia Initiated by Both Normally and Aberrantly Conducted Atrial Premature Beats

Eiectrophysiologic studies were performed in a 72‐year‐old female with recurrent ventricular tachycardia in whom all documented spontaneous episodes were initiated by atrial premature beats. These studies confirmed the diagnosis of ventricular tachycardia and its initiation by atrial premature beats...

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Bibliographic Details
Published in:Pacing and clinical electrophysiology 1980-09, Vol.3 (5), p.519-525
Main Author: BERMAN, NEIL D.
Format: Article
Language:English
Subjects:
Aged
Arrhythmias, Cardiac - drug therapy
atrial premature beats
automaticity
Bundle-Branch Block - physiopathology
Cardiac Complexes, Premature - physiopathology
Cardiac Pacing, Artificial
Disopyramide - therapeutic use
Electrocardiography
Female
Heart Atria - physiopathology
Heart Conduction System - physiopathology
Heart Ventricles - physiopathology
Humans
re-entry
Tachycardia - physiopathology
ventricular tachycardia
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Summary:Eiectrophysiologic studies were performed in a 72‐year‐old female with recurrent ventricular tachycardia in whom all documented spontaneous episodes were initiated by atrial premature beats. These studies confirmed the diagnosis of ventricular tachycardia and its initiation by atrial premature beats. Both normally and aberrantly conducted atrial premature beats were capable of initiating the tachycardia. With aberrant prematures the onset of the tachycardia was delayed in proportion to the delay in the right bundle branch. Triggered automaticity and re‐entry were equally plausible as underlying mechanisms for this arrhythmia.
ISSN:0147-8389
1540-8159
DOI:10.1111/j.1540-8159.1980.tb05270.x