Obstructive sleep apnea (OSA) is a fatal respiratory disease occurring in sleep. OSA can
induce declined heart rate variability (HRV) and was reported to have autonomic nerve …

Obstructive sleep apnea (OSA) is a common sleep disorder that is often associated with
reduced heart rate variability (HRV), thus reflecting modulation of the autonomic system …

Obstructive sleep apnea (OSA) is a common sleep disorder that often associates with
reduced heart rate variability (HRV) indicating autonomic dysfunction. HRV is mainly …

Sample entropy, a nonlinear signal processing approach, was used as a measure of signal
complexity to evaluate the cyclic behavior of heart rate variability (HRV) in obstructive sleep …

Obstructive sleep apnea (OSA) is associated with reduced heart rate variability (HRV) and
autonomic nervous system dysfunction. Sample entropy (SampEn) is commonly used for …

Background Heart rate variability (HRV) has been widely used in the non-invasive
evaluation of cardiovascular function. Recent studies have also attached great importance to …

In this paper, novel heart rate variability (HRV) indices were extracted for the autonomic
nervous system (ANS) activity assessment in congestive heart failure (CHF). It has been …

Entropy provides a valuable tool for quantifying the regularity of physiological time series
and provides important insights for understanding the underlying mechanisms of the …

Heart rate variability (HRV) analysis, instantaneous variation in RR intervals time series of
electrocardiogram (ECG), is generally used for evaluating autonomic nervous system (ANS) …

Obstructive sleep apnea (OSA) is an independent cardiovascular risk factor to which
autonomic nervous dysfunction has been reported to be an important contributor. Ninety …