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Polysomnography involves monitoring various physiological parameters to thoroughly evaluate sleep architecture and identify sleep-related disorders. Key measurements include:
* Brain Activity (EEG): Electroencephalogram for sleep staging and detecting brainwave patterns.
* Respiratory Airflow: Monitoring air movement through the nose and mouth to detect breathing abnormalities.
* Breathing Events: Identification and quantification of apneas (complete cessation of breathing) and hypopneas (partial reduction in breathing) during sleep.
* Blood Oxygen Saturation: Continuous measurement of oxygen levels in the blood.
* Eye Movements (EOG): Electrooculogram to track eye movements, crucial for identifying REM sleep.
* Cardiac Activity (ECG): Electrocardiogram to record heart rate and rhythm.
* Body Position: Tracking changes in sleeping posture.
* Muscle Activity (EMG): Electromyogram, typically from the chin and legs, to assess muscle tone and detect involuntary movements.
What values are measured during polysomnography?
* Brain Activity (EEG): Electroencephalogram for sleep staging and detecting brainwave patterns.
* Respiratory Airflow: Monitoring air movement through the nose and mouth to detect breathing abnormalities.
* Breathing Events: Identification and quantification of apneas (complete cessation of breathing) and hypopneas (partial reduction in breathing) during sleep.
* Blood Oxygen Saturation: Continuous measurement of oxygen levels in the blood.
* Eye Movements (EOG): Electrooculogram to track eye movements, crucial for identifying REM sleep.
* Cardiac Activity (ECG): Electrocardiogram to record heart rate and rhythm.
* Body Position: Tracking changes in sleeping posture.
* Muscle Activity (EMG): Electromyogram, typically from the chin and legs, to assess muscle tone and detect involuntary movements.