Incessant Fascicular Tachycardia: A Cause of Arrhythmia Induced Cardiomyopathy

Authors

  • FREDERIC ANSELME*,

    1. Harvard-Thorndike Institute of Elentrophysiology, Cardiology Division Beth Israel Hospital, Harvard Medical School, Boston, Massachusetts
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  • NOEL BOYLE,

    1. Harvard-Thorndike Institute of Elentrophysiology, Cardiology Division Beth Israel Hospital, Harvard Medical School, Boston, Massachusetts
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  • MARK JOSEPHSON

    Corresponding author
    1. Harvard-Thorndike Institute of Elentrophysiology, Cardiology Division Beth Israel Hospital, Harvard Medical School, Boston, Massachusetts
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  • Supported by a grant from LaFederation Francaise de Cardiologie.

Address for reprints: Mark E. Josephson, M.D., Cardiovascular Division Beth Israel Hospital. 330 Brookline Avenue, Boston, MA 02215. Fax: (617) 667-8769.

Abstract

An incessant ventricular tachycardia arising from the posterior fascicle is reported in a 29-yearold woman. This fascicular tachycardia was due to triggered activity and was clinically induced by an underlying paroxysmal atrial fibrillation. The initial echocardiographic evaluation revealed biventricular dysfunction with an ejection fraction of 30%. On propranolol, the patient has remained asymptomatic and the ventricular function has become normal after 3 months free of arrhythmia.

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