Sleep Apnea in Hurler Syndrome: Looking Beyond the Upper Airway.

This case involves a 13-month-old male with Hurler syndrome. Due to oxygen desaturations during sleep, this patient was referred for polysomnography, which revealed severe mixed sleep apnea (apnea-hypopnea index [AHI] 72 events/h). Because sleep apnea in patients with Hurler syndrome is frequently attributed to upper airway obstruction, he was referred to otolaryngology.