Pneumocephalus associated with nasal continuous positive airway pressure in a patient with sleep apnea syndrome.

We report a new potentially dangerous complication of nasal continuous positive airway pressure applied for the treatment of obstructive sleep apnea syndrome. A middle-aged woman had cerebrospinal fluid leak after using nasal CPAP, with generalized seizures and pneumocephalus. She did fine with conservative therapy for the CSF leak and discontinuation of nasal CPAP.