Normal and Benign Variants
Alpha rhythm or posterior dominant rhythm Print Section Listen (Figures 1-1 to 1-5, 1-11, and 1-16) Figure 1-1. Normal Alpha Rhythm and Squeak Effect. An alpha rhythm appears immediately after…
Generalized Nonepileptiform Activity
General principle Print Section Listen ▪ The EEG is unable to distinguish between different etiologies. The major usage of the EEG is to determine the severity of encephalopathy, prognosis, and…
Epileptic Encephalopathy
Severe neonatal epilepsy with suppression-burst pattern Print Section Listen (Figures 7-1 to 7-6) Figure 7-1. Severe Neonatal Epilepsy with Suppression-Burst Pattern (Early Epileptic Encephalopathy); Erratic Myoclonus. A 5-day-old boy born…
Generalized Epilepsy
Antiepileptic drug (AED)-induced seizure worsening Print Section Listen (Figure 8-1) Figure 8-1. Carbamazepine-Induced Myoclonic Seizure. A 3-year-old boy with a history of GTCS who developed frequent myoclonic jerks and drop…
Refractory Status Epilepticus
Introduction Print Section Listen Traditionally, status epilepticus (SE) was defined as continuous or repetitive seizure activity persisting for at least 30 minutes without recovery of consciousness between attacks. More recently,…
Interpreting Depth Electrode EEG
Introduction Print Section Listen The goal of both intracranial and scalp electroencephalography (EEG) within the epilepsy surgery evaluation is to identify the brain region critical for seizure generation (epileptogenic zone)…
Interpreting Grid and Strip Electrode EEG
Introduction Print Section Listen Long-term video-electroencephalographic (EEG) monitoring may be used to confirm the diagnosis of a seizure disorder, classify seizure-type(s), assess response to therapy, and evaluate patients for surgical…
