Following the publication of the Task Force document on heart rate variability (HRV) in 1996,
a number of articles have been published to describe new HRV methodologies and their …

Sudden cardiac death (SCD) remains a daunting problem. It is a major public health issue
for several reasons: from its prevalence (20% of total mortality in the industrialized world) to …

Heart period constantly changes on a beat to beat basis, due to autonomic influences on the
sinoatrial node, and changes can be quantified as heart rate variability (HRV). In addition …

Heart rate turbulence (HRT) is a baroreflex-mediated biphasic reaction of heart rate in
response to premature ventricular beats. Heart rate turbulence is quantified by: turbulence …

Background Sudden cardiac death (SCD) and pump failure death (PFD) are common
endpoints in chronic heart failure (CHF) patients, but prevention strategies are different …

The goal of this paper is to determine whether the photoplethysmography (PPG) can replace
the ECG-based detection of heart rate turbulence. Using the PPG, classification of …

Background: Heart failure with preserved ejection fraction (HFpEF) is a complex and
heterogeneous clinical syndrome. In the absence of effective and potent treatment …

Heart rate variability (HRV) is represented by the variation of the time intervals between
consecutive heartbeats or the instantaneous heart rates, and can be assessed with linear …

Annual arrhythmic sudden cardiac death ranges from 0.6% to 4% in ischemic
cardiomyopathy (ICM), 1% to 2% in non-ischemic cardiomyopathy (NICM), and 1% in …

Background and aims The aim was to investigate the predictive values of heart rate
variability, deceleration, and acceleration capacity of heart rate in sudden cardiac death in …