Dispersion of ventricular activation and refractoriness in patients with idiopathic dilated cardiomyopathy

Jay L. Dinerman, Ronald D Berger, Mark C P Haigney, John H. Lawrence, Gordon F. Tomaselli, Hugh Calkins

Research output: Contribution to journalArticle

Abstract

We sought to evaluate the electrophysiologic substrate for ventricular arrhythmias and sudden cardiac death in patients with idiopathic dilated cardiomyopathy. When compared with controls, patients with cardiomyopathy had prolonged activation times, increased dispersion of activation and recovery, and prolonged duration of monophasic action potential recordings at 70%, but not at 90%, of repolarization.

Original languageEnglish (US)
Pages (from-to)970-974
Number of pages5
JournalThe American Journal of Cardiology
Volume79
Issue number7
DOIs
StatePublished - Apr 1 1997

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ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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