Supraventricular tachycardia initiated and terminated by a single electrical stimulus

S. Serge Barold, Joseph W. Linhart, Philip Samet, Jhon W. Lister

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In a patient with normal atrioventricular conduction, a Supraventricular tachycardia was repeatedly initiated and terminated by a single premature atrial beat. During the tachycardia, the atrial to His bundle activation time (A-H time) of the His bundle electrogram increased (P-R interval prolonged), and the polarity of the P wave remained unaltered. These observations suggest the creation and abolition of a circus movement of an unusual type, probably solely intraatrial, by a single premature atrial beat.

Original languageEnglish (US)
Pages (from-to)37-41
Number of pages5
JournalThe American Journal of Cardiology
Issue number1
StatePublished - Jul 1969


ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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