EEG-Langzeit-Monitoring – Indikationen und Limitationen im prächirurgischen Monitoring

Epilepsy may be difficult to diagnose at first. Video-EEG Monitoring has two main indications: to assure or reject the diagnosis of epilepsy or to localize the seizure onset zone. Interictal epileptiform discharges (IEDs) are essential in classifying epilepsies. However, knowledge on the latency of IEDs is incomplete. The aim of this study was to assess the latency of IEDs and seizures in long-term EEG recordings of patients with epilepsy and therefore shed some light on the limitations of Video-EEG recordings. We analyzed the latency of IEDs and seizures from video-EEGs of 101.5 ± 62.7 hours (median ± SD) durat…