Technical Tips: Patient Specific Electrode Application Techniques

Cross, Cathy

doi:10.1080/00029238.1992.11080394

Cited by 9 publications

(1 citation statement)

References 3 publications

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“…The electrodes for EEG, EOG, and EMG were standard gold cup electrodes and were applied to the skin using the collodion technique [28]. All PSGs were manually scored according to the standard criteria of Rechtschaffen and Kales [29].…”

Section: Polysomnographymentioning

confidence: 99%

Autonomic cardiovascular control in children with obstructive sleep apnea

Baharav

Kotagal

Rubin

et al. 1999

Clinical Autonomic Research

121

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Autonomic cardiorespiratory control changes with sleep-wake states and is influenced by sleep-related breathing disorders. Power spectrum (PS) analysis of instantaneous fluctuations in heart rate (HR) is used to investigate the role of the autonomic nervous system (ANS) in cardiorespiratory control. The two spectral regions of interest are the low frequency component (LF) and high frequency component (HF). The aim of the present study was to investigate the autonomic cardiorespiratory control in children with obstructive sleep apnea (OSA) syndrome. We studied 10 children with OSA versus 10 normal children. All subjects underwent whole night polysomnography. Spectral analysis of the HR and breathing signals was performed for 256 second long, artifact-free epochs in each sleep-wake state. The LF power was higher in the OSA group compared with control subjects for all states, reflecting enhanced sympathetic activity in OSA subjects. The results indicated sympathetic predominance during REM sleep in all subjects and parasympathetic predominance in slow wave sleep only in controls. The autonomic balance (LF/HF) was significantly higher in OSA patients than in control subjects, at all stages during night sleep, and while awake before sleep onset. An index of overall autonomic balance (ABI) was computed for each subject and correlated well with the measured respiratory disturbance index (RDI).

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Section: Polysomnographymentioning

confidence: 99%