J Korean Soc Clin Neurophysiol.
2012 Jun;14(1):7-11.
Polysomnography and Multiple Sleep Latency Test
- Affiliations
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- 1Department of Neurology, Pusan National University Yangsan Hospital, Yangsan, Korea. sleep.cho@gmail.com
Abstract
- Polysomnography is used to diagnose many types of sleep disorders including sleep apnea, periodic limb movement disorder, REM sleep behavior disorder, parasomnias, and narcolepsy. It is a comprehensive recording of the biophysiological changes that occur during sleep. The polysomnography monitors many body functions parameters including EEG, EOG, EMG, ECG, respiratory airflow, respiratory effort, and pulse oximetry during sleep. Multiple Sleep Latency Test (MSLT) is performed for diagnosing narcolepsy and excessive daytime sleepiness. It is usually to be done after an overnight polysomnography. The test consists of four or five 20-minute nap opportunities that are scheduled two hours apart.
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