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Title
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Sleep Studies
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Author
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Abstract
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| The term “Polysomnography” refers to the continuous recording of multiple electrophysiological and cardiorespiratory signals, usually over the full course of a night, and is elementary to study normal and pathological sleep. It is also applied to assess treatment effects and in a research setting. Overall, it is an extensive procedure that should be performed by a dedicated sleep technologist. When a sleep study does not include signals such as electroencephalogram (EEG), electromyogram (EMG), and electrooculogram (EOG), what is remaining is a respiratory polygraphy. The most complete version of respiratory polygraphy includes oronasal airflow measurement, recording the respiratory movements of chest/abdomen, body position, ECG/heart rate, and oximetry. In its most simplified version, respiratory polygraphy measures only the oronasal airflow, or only SpO2 (oximetry). In expert hands, respiratory polygraphy can be applied as an alternative technique for diagnosing obstructive sleep apnea (OSA) or ruling it out. Consumer wearables and smart watches are gaining more interest, but their accuracy is currently only acceptable for the assessment of sleep quantity and time in bed. In-depth flow shape analysis has shown possible predictive value in assessing epiglottis collapse, which opens new perspectives. |
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Language
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English
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Source (book)
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The role of epiglottis in obstructive sleep apnea / Delakorda, M. [edit.]; et al. [edit.]
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Publication
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Cham
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Springer
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2024
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ISBN
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978-3-031-34991-1
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978-3-031-34992-8
[online]
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DOI
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10.1007/978-3-031-34992-8_7
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Volume/pages
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p. 107-126
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Full text (Publisher's DOI)
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