2016
DOI: 10.1590/1516-3180.2015.0189070116
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Abstract: 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 turbulence (HRT) and heart rate variability (HRV) in OSA. DESIGN AND SETTING: Observational cross-sectional study conducte… Show more

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Cited by 4 publications
(3 citation statements)
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References 27 publications
(26 reference statements)
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“…Among many markers of ANS function, researchers Yang and Szymanowska demonstrated that TS is the most sensitive indicator of autonomic nervous system damage in obstructive sleep apnea, its value exceeding the variability of heart rhythm [28,37]. Studies from recent years showed a statistically significant correlation between high AHI and reduced heart rate turbulence [31,[38][39][40]. However, none of these studies determined the cut-off point for AHI, characterized by the highest sensitivity and specificity in the detection of HRT pathology.…”
Section: Discussionmentioning
confidence: 99%
“…Among many markers of ANS function, researchers Yang and Szymanowska demonstrated that TS is the most sensitive indicator of autonomic nervous system damage in obstructive sleep apnea, its value exceeding the variability of heart rhythm [28,37]. Studies from recent years showed a statistically significant correlation between high AHI and reduced heart rate turbulence [31,[38][39][40]. However, none of these studies determined the cut-off point for AHI, characterized by the highest sensitivity and specificity in the detection of HRT pathology.…”
Section: Discussionmentioning
confidence: 99%
“…; Ozkececi et al. ). Chronic intermittent hypoxia (CIH), directly caused by recurrent episodes of pharyngeal collapse occurring during sleep, is one of the most important risks of cardiovascular diseases in OSA patients (Schillaci et al ).…”
Section: Introductionmentioning
confidence: 96%
“…Obstructive sleep apnea (OSA) is a high risk factor for cardiovascular diseases, such as hypertension, diastolic ventricular dysfunction,coronary heart disease and stroke (Gami et al 2013;Maeder et al 2016;Ozkececi et al 2016). Chronic intermittent hypoxia (CIH), directly caused by recurrent episodes of pharyngeal collapse occurring during sleep, is one of the most important risks of cardiovascular diseases in OSA patients (Schillaci et al 2015).…”
Section: Introductionmentioning
confidence: 99%