Relationship between systolic time intervals and heart rate during atrial or ventricular pacing in normal subjects

G. Ferro, B. Ricciardelli, L. Sacca, M. Chiariello, M. Volpe, M. G. Tari, B. Trimarco

Research output: Contribution to journalArticle

Abstract

Systolic time intervals (STI) are regarded as good indices of cardiac performance in many heart diseases. It must be considered, however, that they are temporally related to the cardiac contraction cycle and, therefore, may be modified by heart rate changes. Thus, it is necessary to define the possible relationship between STI and heart rate changes. In this study, changes in heart rate were induced by atrial and ventricular pacing. Tachycardia caused a proportional decrease of left ventricular ejection time (LVET) (y=275.142-1.0025 x, r=0.76, p1). These results demonstrate that while LVET must be corrected for the changes in heart rate, no correction of PEP and ICT is necessary.

Original languageEnglish
Pages (from-to)765-771
Number of pages7
JournalJapanese Heart Journal
Volume21
Issue number6
Publication statusPublished - 1980

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ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

Ferro, G., Ricciardelli, B., Sacca, L., Chiariello, M., Volpe, M., Tari, M. G., & Trimarco, B. (1980). Relationship between systolic time intervals and heart rate during atrial or ventricular pacing in normal subjects. Japanese Heart Journal, 21(6), 765-771.