| Autor: |
Zuanetti, Giulio, Latini, Roberto, Neilson, James M.M., Schwartz, Peter J., Ewing, David J. |
| Zdroj: |
Journal of the American College of Cardiology; March 1991, Vol. 17 Issue: 3 p604-612, 9p |
| Abstrakt: |
The purpose of this study was to investigate whether heart rate variability could be reliably assessed in patients with ventricular arrhythmias and to evaluate whether it is affected by antiarrhythmic drugs. The study was based on an analysis of 239 ambulatory electrocardiographic (ECG) recordings obtained from 67 patients with frequent and complex ventricular arrhythmias enrolled in the Antiarrhythmic Drug Evaluation Group (ADEG) study. In each recording, after exclusion of premature ventricular complexes, the number of times during a 24 h period in which two consecutive sinus RR intervals differed by more than 50 ms was calculated. The total 24 h count from each recording was then used as an index of heart rate variability. This method is a reliable marker of cardiac parasympathetic activity. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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