What is Polysomnography?
Polysomnography, commonly known as a sleep study, is a comprehensive test used to diagnose sleep disorders. It records brain waves, blood oxygen levels, heart rate, breathing, as well as eye and leg movements during sleep.
How it's Performed
Preparation
- Pre-Sleep Routine: Follow your usual bedtime routine, but avoid caffeine or alcohol on the day of the test.
- Medication Disclosure: Inform your doctor about any medications you're taking, as they might affect the sleep study results.
- Sleep Environment: The test is typically conducted overnight at a sleep center, where you'll sleep in a comfortable, private room similar to a hotel room.
During the Procedure
- Sensor Placement: Technicians will attach sensors to your scalp, temples, chest, and legs using adhesive patches.
- Monitoring: The sensors record various physiological data while you sleep, including brain activity, eye movements, heart rate, breathing patterns, and muscle activity.
- Comfort: While the sensors might feel strange at first, they are designed to be as comfortable as possible to ensure you can sleep.
- Duration: The test typically lasts for the duration of your night's sleep, around 7-8 hours.
Post-Procedure
- Sensor Removal: The sensors are removed in the morning, and you can return to your normal activities immediately.
- Data Analysis: A sleep specialist will analyze the recorded data to identify any sleep disorders, such as sleep apnea, restless legs syndrome, or narcolepsy.
- Follow-Up: Your doctor will discuss the results with you and recommend appropriate treatment or further testing if needed.
Who Can Have One?
Polysomnography is suitable for individuals experiencing sleep problems such as chronic insomnia, snoring, or excessive daytime sleepiness.
Conditions Diagnosed
- Sleep Apnea: Characterized by pauses in breathing or shallow breaths during sleep.
- Restless Legs Syndrome: Causes uncomfortable sensations and an urge to move the legs.
- Narcolepsy: A neurological disorder affecting the control of sleep and wakefulness.
- Chronic Insomnia: Difficulty falling or staying asleep over a long period.