The Mechanism of Flutter Electrical Alternans

JOHN J. ROZANSKI, LIAQAT ZAMAN, RICHARD LUCERI, JORGE PASTORIZA, MORRIS KLEINFELD, AGUSTIN CASTELLANOS, ROBERT J. MYERBURG

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

We have had the opportunity to observe the occurrence of flutter electrical alternans in which two distinct populations of flutter waves are present and which alternate in 1:1 and 2:1 patterns. The flutter alternans whether 2:1 or 3:1, was concordant with the pattern of preceding ventricular conduction (ventriculophasic variation). This concordance occurred reproducibly and remained consistent. Our example of flutter alternans probably represents mechanical artefact caused by catheter movement during ventricular mechanical systole. We reproduced this pattern consistently at a slower rate during coronary sinus pacing. These findings appear to suggest an explanation for certain types of so-called atrial flutter electrical alternans.

Original languageEnglish (US)
Pages (from-to)193-198
Number of pages6
JournalPacing and Clinical Electrophysiology
Volume4
Issue number2
DOIs
StatePublished - Mar 1981

Keywords

  • atrial flutter
  • electrical alternans

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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    ROZANSKI, JOHN. J., ZAMAN, LIAQAT., LUCERI, RICHARD., PASTORIZA, JORGE., KLEINFELD, MORRIS., CASTELLANOS, AGUSTIN., & MYERBURG, ROBERT. J. (1981). The Mechanism of Flutter Electrical Alternans. Pacing and Clinical Electrophysiology, 4(2), 193-198. https://doi.org/10.1111/j.1540-8159.1981.tb06542.x