BACKGROUND: The usefulness of heart rate variability (HRV) as a clinical research and
diagnostic tool has been verified in numerous studies. The gold standard technique …

Experimental approaches directed at addressing these issues are limited by several
considerations. First, the close association between obesity and OSA often obscures …

Sleep is a physiological process involving different biological systems, from molecular to
organ level; its integrity is essential for maintaining health and homeostasis in human …

These practice parameters are an update of the previously-published recommendations
regarding the indications for polysomnography and related procedures in the diagnosis of …

Heart rate (HR) is modulated by the combined effects of the sympathetic and
parasympathetic nervous systems. Therefore, measurement of changes in HR over time …

This article reviews the mechanism, the parameters and the use of HRV as a marker
reflecting the activity of the sympathetic and vagal components of the ANS on the sinus …

Sleep apnea is a common disorder that affects both children and adults. It is characterized
by periods of breathing cessation (apnea) and periods of reduced breathing (hypopnea) …

A method for the automatic processing of the electrocardiogram (ECG) for the detection of
obstructive apnoea is presented. The method screens nighttime single-lead ECG recordings …

Obstructive sleep apnea syndrome (OSAS) is associated with cardiovascular morbidity as
well as excessive daytime sleepiness and poor quality of life. In this study, we apply a …

Sleep apnoea is a common disorder that is usually diagnosed through expensive studies
conducted in sleep laboratories. Sleep apnoea is accompanied by a characteristic cyclic …