[Electrical status epilepticus during sleep: a retrospective multi-centre study of 29 cases].

Introduction: Electrical status epilepticus during sleep (ESES) is an epileptic syndrome characterised by the presence of very persistent slow spike-wave-type epileptic discharges during non-REM sleep. The management of this pathology, today, is heterogeneous and no controlled studies have been conducted with the treatments employed; similarly, whether or not they improve patients' cognitive development or not has still to be determined.

Patients And Methods: A review was carried out of the patients diagnosed with ESES at four hospitals over a period of 15 years; data concerning their clinical presentation, therapeutic management and clinical course were collected and compared with the literature.