Unstable intraventricular conduction disorders.

A. Castellanos, L. Zaman, R. M. Luceri, R. J. Myerburg

Research output: Contribution to journalReview articlepeer-review

1 Scopus citations


Unstable bundle branch blocks may be tachycardia dependent, bradycardia dependent, or rate independent. When appearing at the "critical" rates or "critical" cycle lengths they may seem to be rate independent. Conversely, "true" rate-independent blocks may be reversible or irreversible. Determining if a rate-unrelated block may disappear can be difficult because irreversile bundle branch block seems to develop through a slow process in time during which rate-dependent, rate-independent, and even normal conduction alternate in successive electrocardiograms.

Original languageEnglish (US)
Pages (from-to)489-497
Number of pages9
JournalCardiology clinics
Issue number3
StatePublished - Aug 1 1987

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine


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