[Value of cassette-recorded long-term 8-channel EEG monitoring--ambulatory recording in known epileptics].

The authors insist on the real improvement of ambulatory EEG recording due to the new 8-channel cassette recorder (Medilog 9000*). They emphasized: (1) its maniability with full independence of patients and physiological sleep recordings at home; (2) its viability, the same as conventional EEG with 8-channel montages; (3) its performant video-screen replay system, with easy paper transcription. The results in 50 ambulatory epileptic patients out of the 100 examinations actually realized in the EEG laboratory with this new device are detailed. Most interesting, in addition to sleep recording, is recognizing the number and the time repartition of paroxysmal discharges every 24 h; increasing the chances of recording randomly occurring seizures and the future chronobiological studies. The indications in epileptic seizures are myoclonic and 'temporal' epilepsies and also, with one channel for ECG recording, the diagnosis of attack of uncertain etiology.