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      Initiation of Ventricular Tachycardia by Supraventricular Beats

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          9 patients (6 males and 3 females, age 5-69 years) with ventricular tachycardia induced by supraventricular beats are reported. 3 patients had had previous myocardial infarction, 1 patient had mitral valve prolapse and in 5 patients no organic heart disease could be demonstrated. Ventricular tachycardia was initiated by a single atrial premature beat in 4 patients, double atrial premature beats in 3 patients (in 1 of them following exercise), by nonsustained AV nodal tachycardia in 1 patient, by rapid atrial pacing in 3 patients and exercise-related ectopic atrial tachycardia in 1 patient. Programmed ventricular stimulation induced ventricular tachycardia in all patients in whom the tachycardia was induced by atrial stimulation. Verapamil abolished sustained ventricular tachycardia in 1 of the 3 patients in whom this drug was administered. Hypotheses are made on the electrophysiological mechanisms of the arrhythmias and clinical implications are listed.

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          Author and article information

          S. Karger AG
          07 November 2008
          : 69
          : 4
          : 203-213
          a Department of Cardiology, Ichilov Hospital, Tel-Aviv, Israel; bDepartment of Cardiology, Kaplan Hospital, Rehovot, Israel; cDepartment of Cardiology, Bikur Holim Hospital, Jerusalem, Israel
          173505 Cardiology 1982;69:203–213
          © 1982 S. Karger AG, Basel

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          Pages: 11
          Original Paper


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