[Epilepsy and sleep as seen on video encephalographic recordings].

INTRODUCTION

The relation between epilepsy and sleep has been known for some time. Seizures are often not observed by the examiner and it is necessary to make prolonged recordings during sleep, both slow or no REM sleep and paradoxical or REM sleep. Objective. To show the way in which a video recording may be made of a patient s seizures, together with an electroencephalogram recorded on a suitable disk and both sets of data be synchronised and studied as often as necessary.

PATIENTS AND METHODS

We describe some of the epileptic seizures, recorded by this technique, during sleep. At the same time we show other paroxystic non epileptic episodes occurring during sleep which may be needed to be ruled out of the differential diagnosis.

CONCLUSIONS

We show that as a general rule the basic activity of paroxystic disorders seen on an electroencephalogram occurs during slow sleep phases and particularly during their early stages. These studies are especially relevant in children and in neonates a prolonged recording is essential