ABSTRACT
Introduction Sleep-related upper airway obstruction in childhood can vary from partial upper airway obstruction (such as the upper airway resistance syndrome and obstructive hypoventilation) to complete upper airway obstruction (obstructive sleep apnea). This spectrum of abnormalities has been referred to as the obstructive sleep apnea syndrome (OSAS). OSAS can occur throughout childhood, from infancy through adolescence. Although OSAS is relatively common during childhood, and can result in significant sequelae, it has not been well studied.
