Epilepsy (Confirmatory)
-
EEG indicated whenever epilepsy suspected
-
Uses of EEG in epilepsy ○ Diagnostic: support diagnosis, classify seizure, localize focus, quantify ○ Prognostic: adjust anti-epileptic treatment
-
Normal in 10-20% of epileptic patients
-
Background slowed by: ○ AED, diffuse cerebral process, postictal state
-
Artifact from: ○ Eye rolling, tremor, other movement, electrodes false Positive reading