Ventricular ectopic activity after premature atrial beats in acute myocardial infarction

R. J. Myerburg, R. J. Sung, G. Gerstenblith, Stephen M. Mallon, Agustin Castellanos

Research output: Contribution to journalArticlepeer-review


Ventricular ectopic activity occurred only after premature atrial beats in a patient with an acute inferior wall myocardial infarction. The ventricular ecbopic activity occurred only when the coupling interval between the premature atrial beats and preceding sinus beat was ≤0.44 s. The sinus cycle length, however, appeared to influence the form of expression of ventricular ectopic activity independent of coupling intervals, with single premature ventricular contractions occurring at cycle lengths ≥0.72 s, couplets at cycle lengths of 0.68 to 0 71 s, and ventricular tachycardia at cycle lengths ≤0.67s.

Original languageEnglish (US)
Pages (from-to)1033-1037
Number of pages5
Issue number9
StatePublished - 1977
Externally publishedYes

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine


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