Predictive values of heart rate variability, deceleration and acceleration capacity of heart rate in post‐infarction patients with LVEF ≥35%
Annals of Noninvasive Electrocardiology Jul 14, 2020
Liu X, et al. - Researchers assessed the predictive values of heart rate variability, deceleration, as well as acceleration capacity of heart rate in sudden cardiac death among postinfarction patients having left ventricular ejection fraction (LVEF) ≥ 35%. MI (myocardial infarction) patients were followed-up for over 24 months. Lower levels of SDNN (standard deviation of all normal RR intervals), TP, very low frequency (VLF), DC, and low‐risk DRs were seen in patients with sudden cardiac arrhythmias (SCA) vs those without SCA. Findings revealed an independent correlation of reduced SDNN, VLF, DC, and abnormal DRs, with increased risks of sudden cardiac arrhythmias, in post‐MI patients with LVEF ≥ 35%. In postinfarction patients, a high‐risk group of malignant arrhythmias may be identified with the help of combined SDNN, VLF, and DC.
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