Pathophysiology of obstructive sleep apnea-hypopnea syndrome
Hypopnea can be characterized by recurrent episodes of upper airway obstruction during sleep. They are commonly associated with the so called recurrent oxyhemoglobin desaturation and frequent arousals from sleep. The term obstructive sleep apnea-hypopnea syndrome (OSAHS) is frequently used when such episodes are associated with excessive daytime sleepiness. The majority of patients with obstructive sleep…