Increased plasma epinephrine but not reduced heart rate variability leads to ventricular arrhythmias in patients with acute myocardial infarction

J. I. Ejima, T. Kaneko, Toru Maruyama, Y. Kaji, Y. Tsuda, S. Kanaya, T. Fujino, Y. Niho, Y. Ishihara

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Ventricular arrhythmia observed in the acute stage of myocardial infarction is profoundly related to the autonomic balance. To investigate prediction of ventricular arrhythmia, heart rate variability and plasma catecholamine concentration were simultaneously measured for a week in 17 consecutive patients with first anterior or anteroseptal Q wave infarction treated without specific coronary intervention. The cross-sectional plot of coefficient of variance (= standard deviation of N-N interval/mean N-N interval x 100; %) as a function of plasma epinephrine on the day of admission remained lower than the standard average. Ventricular premature contractions increased in proportion to the plasma epinephrine concentration. In the first week of hospitalization, plasma epinephrine concentration and frequency of premature contraction decreased exponentially, whereas the coefficient of variance showed a modest decline. Ventricular tachycardia refractory to xylocaine with rate accelerating with persistence was observed only in patients with the peak epinephrine concentration > 375 pg/ml. Plasma epinephrine concentration rather than coefficient of variance during sleep after the first acute episode is more closely related to the following triggered ventricular arrhythmia.

Original languageEnglish
Pages (from-to)69-75
Number of pages7
JournalJournal of Cardiology
Volume32
Issue number2
Publication statusPublished - Sep 16 1998

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Epinephrine
Cardiac Arrhythmias
Heart Rate
Myocardial Infarction
Ventricular Premature Complexes
Ventricular Tachycardia
Lidocaine
Infarction
Catecholamines
Sleep
Hospitalization

All Science Journal Classification (ASJC) codes

  • Cardiology and Cardiovascular Medicine

Cite this

Increased plasma epinephrine but not reduced heart rate variability leads to ventricular arrhythmias in patients with acute myocardial infarction. / Ejima, J. I.; Kaneko, T.; Maruyama, Toru; Kaji, Y.; Tsuda, Y.; Kanaya, S.; Fujino, T.; Niho, Y.; Ishihara, Y.

In: Journal of Cardiology, Vol. 32, No. 2, 16.09.1998, p. 69-75.

Research output: Contribution to journalArticle

Ejima, JI, Kaneko, T, Maruyama, T, Kaji, Y, Tsuda, Y, Kanaya, S, Fujino, T, Niho, Y & Ishihara, Y 1998, 'Increased plasma epinephrine but not reduced heart rate variability leads to ventricular arrhythmias in patients with acute myocardial infarction', Journal of Cardiology, vol. 32, no. 2, pp. 69-75.
Ejima, J. I. ; Kaneko, T. ; Maruyama, Toru ; Kaji, Y. ; Tsuda, Y. ; Kanaya, S. ; Fujino, T. ; Niho, Y. ; Ishihara, Y. / Increased plasma epinephrine but not reduced heart rate variability leads to ventricular arrhythmias in patients with acute myocardial infarction. In: Journal of Cardiology. 1998 ; Vol. 32, No. 2. pp. 69-75.
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AU - Tsuda, Y.

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