Clinical presentation, diagnosis, complications and treatment of obstructive sleep apnea syndrome

Obstructive sleep apnea syndrome (OSAS) is a disorder characterized by recurrent obstruction of the upper airway during sleep. The most common nocturnal symptom is snoring, and the most common daytime symptom is excessive sleepiness. OSAS causes serious morbidity and mortality due to its cardiovascular, social and neuropsychological consequences. Early diagnosis and treatment are needed at all ages.