Retrograde cycle length alternans during supraventricular tachycardia: An unusual tachycardia mechanism

Nipavan Chiamvimonvat, Jim Cain, Kathryn A. Glatter

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Cycle length alternans is occasionally seen during supraventricular tachycardia due to oscillations in the antegrade atrioventricular nodal (AVN) refractoriness. However, alternans due to retrograde variation in AVN conduction has not been reported. This report describes the case of a 36-year-old man with atypical AVN reentry tachycardia (AVNRT) whose episodes of tachycardia were characterized by continuous oscillations in retrograde AVN conduction. Ablation at one spot eliminated the tachycardia. Cycle length alternans due to oscillations in retrograde AVN conduction, although rare, can be seen during atypical AVNRT and should be considered.

Original languageEnglish (US)
Pages (from-to)1017-1019
Number of pages3
JournalPACE - Pacing and Clinical Electrophysiology
Volume27
Issue number7
DOIs
StatePublished - Jul 2004

Keywords

  • Atypical AVNRT
  • Cycle length alternans

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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