Demonstration of an Excitable Gap in the Common Form of Atrioventricular Nodal Reentrant Tachycardia

MARK E. ROSENTHAL, John Miller, MARK E. JOSEPHSON

Research output: Contribution to journalArticle

Abstract

Premature ventricular depolarizations were introduced during sustained atrioventricular nodal reentrant tachycardia (“slow‐fast” type) in a single patient during electrophysiological study. Preexcitation of the atrium with retrograde His bundle capture occurred over an 85 msec range of coupling intervals between the last antegmde His bundle depolarization and the first retrograde His bundle depolarimtion associated luith the premature beat (H1 ‐ H2 interval). The interval between the retrograde His bundle depolarization (H2) and the retrograde atrial depolarization (A2) remained constant over this 85 msec excitable gap as the H1‐H2 interval decreased. This indicates the presence of fully excitable tissue luithin the retrograde fast pathway of the reentrant circuit during the tachycardia and demonstrates the utility of this technique for defining the extent and conduction properties of the excitable gap in reentrant arrhythmias

Original languageEnglish (US)
Pages (from-to)334-342
Number of pages9
JournalJournal of Cardiovascular Electrophysiology
Volume1
Issue number4
DOIs
StatePublished - 1990
Externally publishedYes

Fingerprint

Atrioventricular Nodal Reentry Tachycardia
Bundle of His
Premature Cardiac Complexes
varespladib methyl
Tachycardia
Cardiac Arrhythmias

Keywords

  • atrioventricular nodal reentry
  • excitable gap
  • resetting

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Physiology (medical)

Cite this

Demonstration of an Excitable Gap in the Common Form of Atrioventricular Nodal Reentrant Tachycardia. / ROSENTHAL, MARK E.; Miller, John; JOSEPHSON, MARK E.

In: Journal of Cardiovascular Electrophysiology, Vol. 1, No. 4, 1990, p. 334-342.

Research output: Contribution to journalArticle

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