Obstructive sleep apnea (OSA), a heterogeneous and multifactorial sleep related breathing
disorder with high prevalence, is a recognized risk factor for cardiovascular morbidity and …

Obstructive sleep apnea (OSA) is a highly prevalent condition, resulting in recurrent hypoxic
events, sleep arousal, and daytime sleepiness. Patients with OSA are at an increased risk of …

Obstructive Sleep Apnea is a common respiratory disorder characterized by recurrent
nocturnal episodes of normal breathing interruption due to upper airway total or partial …

Abstract Study Objectives Patients with obstructive sleep apnea (OSA) exhibit
heterogeneous heart rate variability (HRV) during wakefulness and sleep. We investigated …

Background: Many patients with severe obstructive sleep apnea (OSA) do not complain of
excessive daytime sleepiness (EDS), possibly due to increased sympathetic nervous activity …

Objective This study aims to analyze how much heart rate variability (HRV) indices
discriminatively respond to age and severity of sleep apnea in the obstructive sleep apnea …

Obstructive sleep apnea seems to have an important influence on the autonomic nervous
system. In this study, we assessed the relations of sleep apnea–related parameters with 24 …

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 …

Autonomic dysfunction is recognized to contribute to cardiovascular consequences in
obstructive sleep apnea/hypopnea syndrome (OSAHS) patients who present predominant …

Introduction: The sympathetic activation is considered to be the main mechanism involved in
the development of cardiovascular diseases in obstructive sleep apnea (OSA). The heart …