Chapter 95 Polysomnogram Sleep Studies
Polysomnography refers to the continuous and simultaneous monitoring and recording of various physiologic parameters of sleep. In order to meet international standards, measured parameters must include one electroencephalography (EEG) channel, two electrooculogram (EOG) channels to measure eye movement, and one electromyography (EMG) channel to record rapid eye movement (REM) sleep.
Other parameters often monitored include additional EEG and EMG channels, airflow, electrocardiography, pulse oximetry, and respiratory effort; and sound recordings of snoring are often made. The data are reviewed and interpreted by a practitioner specially trained in sleep study and polysomnography interpretation.
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