Beyond standard polysomnography: Advantages and indications for use of extended 10-20 EEG montage during laboratory sleep study evaluations

Combined PSG-EEG, utilizing 18-channel EEG, is an under-utilized technique which can assist in diagnosing paroxysmal nocturnal events, and differentiate between the presence of a primary sleep disorder, seizure activity, or both. Our study further illustrates the importance of considering sleep disorders in epilepsy patients.