Spectral Indices of Cardiac Autonomic Function in Obstructive Sleep Apnea
نویسندگان
چکیده
منابع مشابه
Spectral indices of cardiac autonomic function in obstructive sleep apnea.
Spectral analysis of heart rate variability (HRV) is useful as a noninvasive means of assessing autonomic function in patients with obstructive sleep apnea (OSA). However, standard spectral measures, such as the ratio of low-frequency to high-frequency power (LHR) and normalized high-frequency power (NHFP), can be confounded by the abnormal breathing patterns that occur during sleep. To circumv...
متن کاملCardiac autonomic control in the obstructive sleep apnea
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 rate variability (HRV) analysis represents a non-invasive tool allowing the study of the autonomic nervous system. The impairment of HRV parameters in OSA has been documented. However, only a few studies tackled the dyn...
متن کاملAutonomic Function in Adults with Obstructive Sleep Apnea
Background: Obstructive Sleep Apnea (OSA) is the most prevalent form of sleep disordered breathing and could become an important public health issue in India. Patients with OSA have high levels of sympathetic nerve activity during sleep. The autonomic alterations persist during wakefulness and are considered to contribute to the cardiovascular disorders associated with OSA. Aims & Objective: Th...
متن کاملEffects of sildenafil on autonomic nervous function during sleep in obstructive sleep apnea
OBJECTIVE To evaluate the effects of sildenafil on the autonomic nervous system in patients with severe obstructive sleep apnea. METHODS Thirteen male patients with severe obstructive sleep apnea (mean age 43+/-10 years with a mean body mass index of 26.7+/-1.9 kg/m(2)) received a single 50-mg dose of sildenafil or a placebo at bedtime. All-night polysomnography and heart rate variability wer...
متن کاملThe effect of sleep apnea severity on cardiac autonomic activity during night time in obstructive sleep apnea patients.
CONTEXT AND OBJECTIVE Impaired autonomic cardiac function is an important consequence of obstructive sleep apnea (OSA). This impairment is mainly due to intermittent hypoxia episodes following apneas. However, the impact of apnea severity on autonomic cardiac function remains unclear. The aim of this study was to evaluate the relationship between the severity of sleep apnea and heart rate turbu...
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ژورنال
عنوان ژورنال: Sleep
سال: 1999
ISSN: 1550-9109,0161-8105
DOI: 10.1093/sleep/22.4.443