Upper airway resistance syndrome (UARS) is a condition that was
first identified and described at Stanford University. It is very
similar to obstructive
sleep apnea (OSA) in that the soft tissue of the throat relaxes,
reduces the size of the airway, and results in disturbed sleep and
consequent daytime impairment, including excessive daytime sleepiness.
Although the increase in upper airway resistance is not enough to
meet criteria of the sleep disordered breathing that define
obstructive sleep apnea, the resulting increase in breathing effort
does cause a brief awakening from sleep that is often undetected by
the affected individual. When this scenario repeats throughout the
night, sleep is impaired, just like in obstructive sleep apnea.
Upper Airway Resistance Syndrome (UARS) Upper airway resistance syndrome (UARS) is caused by a slowing or blockage of air in the nasal passages during sleep, disrupting it and causing fatigue. Upper Airway Resistance SyndromeUARS