PMID: 8945056Nov 1, 1996Paper

Heart rate variability in myocardial infarction with and without malignant arrhythmias: comparison with heart transplant recipients and normal subjects

Pacing and Clinical Electrophysiology : PACE
T R RodriguesM da Consolação Moreira

Abstract

Myocardial autonomic denervation occurs after acute MI. This process is followed by a reduction of heart rate variability (HRV) and an increase of malignant ventricular arrhythmias and sudden death. This study investigated whether there are any significant differences in HRV among the population of MI who did and did not have malignant ventricular arrhythmias (MVAs), normal subjects and heart transplant recipients, the paradigm of the denervated heart. We studied 25 subjects aged 42 +/- 17 years, with normal clinical and cardiac noninvasive evaluation (group A); 70 patients aged 57 +/- 14 years, who had MI but no arrhythmic event in 36 months of follow-up (group B); 13 patients with MI aged 65 +/- 9 years, who had had sustained VT, VF, or sudden death (group C); and 16 cardiac transplant recipients aged 35 +/- 14 years (group D). The ECG was sampled for 256 seconds. We calculated, in time and frequency domain, the standard deviation of the RR cycle length and the spectral component's very low frequency (< 0.05 Hz), low frequency (0.05-0.15 Hz), and high frequency (0.15-0.35 Hz). The values of HRV in group A were significantly greater than in groups B, C, and D (P < 0.001) and greater in group B than in groups C and D (P < 0.001...Continue Reading

References

Feb 11, 1991·Journal of the American College of Cardiology·J R CookL M Rolnitzky
Nov 15, 1990·The American Journal of Cardiology·M L SmithM D Thames
Jul 1, 1995·Journal of Electrocardiology·M Sosnowski, T Petelenz
Feb 1, 1995·Western Journal of Nursing Research·M J Cowan
Nov 1, 1995·Clinical Science·A MallianiF Lombardi
Dec 1, 1995·International Journal of Cardiology·E SimantirakisP Vardas

❮ Previous
Next ❯

Citations

Jul 12, 2013·BMC Psychiatry·Yiming WangMichael Berk
Mar 17, 2009·Journal of Cardiovascular Magnetic Resonance : Official Journal of the Society for Cardiovascular Magnetic Resonance·Craig R ButlerIan Paterson
Oct 20, 2004·Coronary Artery Disease·Ozcan OzdemrHatice Sasmaz

❮ Previous
Next ❯

Related Concepts

Related Feeds

Atrial Fibrillation

Atrial fibrillation is a common arrhythmia that is associated with substantial morbidity and mortality, particularly due to stroke and thromboembolism. Here is the latest research.

Arrhythmia

Arrhythmias are abnormalities in heart rhythms, which can be either too fast or too slow. They can result from abnormalities of the initiation of an impulse or impulse conduction or a combination of both. Here is the latest research on arrhythmias.

Related Papers

The World Journal of Biological Psychiatry : the Official Journal of the World Federation of Societies of Biological Psychiatry
Johannes C EhrenthalHenning Schauenburg
© 2021 Meta ULC. All rights reserved