Polysomnography (PSG)

To detect obstructive sleep apnea (OSA), these two type of sleep studies can be conducted: Polysomnography (PSG) and Polygraphy (PG).

Polysomnography:This overnight sleep study, conducted in a Sleep Lab or Hospital, is the gold standard for diagnosing obstructive sleep apnea (OSA). Polysomnography, also called a sleep study, is a comprehensive test used to diagnose sleep disorders. Polysomnography records your brain waves, the oxygen level in your blood, heart rate and breathing, as well as eye and leg movements during the study,According to record above parameters could find the patient’s sleeping problems, and diagnose type of apnea, severity of apnea, analyze the effectiveness of sleep disorders therapy, PSG is the " gold standard " for diagnosis of OSA and other forms of sleep-disordered breathing. PSG is an painless, safe diagnostic device.

The components of a polysomnogram include the following:

● Electroencephalogram (EEG)

● Electromyography (EMG)

● Electro-occulogram (EOG), to monitor for rapid eye movements

● Electrocardiogram (ECG), to monitor cardiac function

● Oral and nasal airflow pressure and temperature (using nasal pressure transducer and thermistor)

● Chest and abdomen movement (i.e. - respiratory effort, measured using chest and abdominal belts)

● Oxygen saturation (using finger probe digital pulse oximetry)

● Transcutaneous CO2 (TcCO2)

During PSG, characteristic EEG, EMG, and EOG amplitudes and waveforms are scored in 30 second epochs.Ventmed brand's PSG is complies with the latest version of AASM standard, use AI technical analysis for the reports, also could generate multiple reports, effectiveness of sleep disorders therapy.