Clinical evaluation of 4-channel ambulatory EEG monitoring in the management of patients with epilepsy.

The role of 4-channel EEG taped monitoring in the management of patients with severe epilepsy has been evaluated, by examining the recordings from 100 consecutive patients referred for monitoring. Six main reasons for referral have been identified and in 80% of subjects the relevant clinical event was recorded, leading directly to a change in treatment in 57% of cases. This technique has proved to be cost effective and reliable and is particularly valuable in the identification of pseudo seizures.