Polysomnography is a sleep study. This test records certain body functions as you sleep. It is used to diagnose sleep disorders.
The Polysomnogram monitors many body functions incuding
- Brain Activity
- Eye Movement
- Muscle Activity
- Heart Rhythm
during sleep.
Polysomnography is used to diagnose or rule out many types of sleep disorders including
Narcolepsy, Idiopathic Hypersomnia, Periodic Limb Movement Disorder(PLMD), REM behaviour disorder, parasomnias and sleep apnea.
What is Obstructive Sleep Apnea?
Obstructive sleep apnea is a potentially serious sleep disorder. It causes breathing to repeatedly stop and start during sleep. There are several types of sleep apnea, but the most common is obstructive sleep apnea.
Symptoms of OSA:
- Loud or frequent snoring.
- Silent pauses in breathing.
- Choking or gasping sounds.
- Daytime sleepiness or fatigue.
- Unrefreshing sleep.
- Insomnia.
- Morning headaches.
- Nocturia (waking during the night to go to the bathroom)
Obstructive sleep apnea is classified by severity: Severe obstructive sleep apnea means that your AHI is greater than 30 (more than 30 episodes per hour) Moderate obstructive sleep apnea means that your AHI is between 15 and 30. Mild obstructive sleep apnea means that your AHI is between 5 and 15.