Obstructive Sleep Apnea: Polysomnography In Adults
OSA or Obstructive sleep apnea is the most common type of sleep apnea and is characterized by what causes the stop or pause on breathing, in this case, a muscle may be blocking the air path. It shows repeated episodes of complete or partial obstructions of the upper airway during sleep, despite the effort to breathe, and is usually associated with a reduction in blood oxygen saturation.
Obstructive sleep apnea is the repetitive complete obstruction (apnea) or partial obstruction (hypopnea) of the collapsible part of the upper airway during sleep. The syndrome is associated with excessive daytime sleepiness or chronic fatigue. Several studies have shown that OSA is associated with hypertension, stroke, and other cardiovascular disorders; many researchers believe that these cardiovascular disorders are consequences of OSA. In able to properly diagnose a person is the use of Polysomnography.
What is Polysomnography?
- Also known as a sleep study it is a test used to diagnose sleep disorders.
- It has a device that records your brain waves, the oxygen level in your blood, heart rate and breathing, as well as eye and leg movements during the study.
- Polysomnography is occasionally done during the day to accommodate shift workers who habitually sleep during the day.
This type of test is recommended when you are experiencing:
- Sleep apnea or another sleep-related breathing disorder. In this condition, your breathing repeatedly stops and starts during sleep.
- Periodic limb movement disorder. In this sleep disorder, you involuntarily flex and extend your legs while sleeping. This condition is sometimes associated with restless legs syndrome.
- Narcolepsy. You experience overwhelming daytime drowsiness and sudden attacks of sleep in this condition.
- REM sleep behavior disorder. This sleep disorder involves acting out dreams as you sleep.
- Unusual behaviors during sleep. Your doctor may perform this test if you do unusual activities during sleep, such as walking, moving around a lot or rhythmic movements.
- Unexplained chronic insomnia. If you consistently have trouble falling asleep or staying asleep, your doctor may recommend polysomnography.