Sudden death, arrhythmic events and measurements of heart rate variability

Heart rate variability as a predictor of sudden cardiac death.

Different noninvasive approaches have been developed for risk stratification of patients with myocardial infarction and heart failure with aim to select patients at high risk of sudden cardiac death who might mostly benefit from preventive therapy. Reduced heart rate variability (HRV) was a strong predictor of mortality in myocardial infarction and heart failure in early studies. However, in th...

Heart rate variability as predictive factor for sudden cardiac death

Sudden cardiac death (SCD) represents about 25% of deaths in clinical cardiology. The identification of risk factors for SCD is the philosopher's stone of cardiology and the identification of non-invasive markers of risk of SCD remains one of the most important goals for the scientific community.The aim of this review is to analyze the state of the art around the heart rate variability (HRV) as...

Chaos theory, heart rate variability, and arrhythmic mortality.

Since the original report by Wolf et al, 2 analysis of spontaneous variations of beat-to-beat intervals has become a valuable tool, familiar to clinical cardiologists. In 1987, Kleiger and coworkers3 published a pioneering work demonstrating that a reduced heart rate variability (HRV) was capable of identifying a subgroup of subjects with increased cardiac mortality after myocardial infarction ...

Short-term heart rate variability strongly predicts sudden cardiac death in chronic heart failure patients.

BACKGROUND The predictive value of heart rate variability (HRV) in chronic heart failure (CHF) has never been tested in a comprehensive multivariate model using short-term laboratory recordings designed to avoid the confounding effects of respiration and behavioral factors. METHODS AND RESULTS A multivariate survival model for the identification of sudden (presumably arrhythmic) death was dev...

Heart rate variability and brain death.