Purpose of Review: This article reviews the utility of EEG and prolonged video-EEG telemetry in the diagnosis and management of a patient with epilepsy.
Recent Findings: The EEG can be the most helpful test to determine a diagnosis of epilepsy; it can also distinguish focal and generalized neurophysiologic correlates of epilepsy. Furthermore, when paired with video monitoring, EEG can not only define epileptic and nonepileptic events but also aid in localization of seizures in patients with epilepsy. Finally, when history and other imaging modalities are considered with the EEG, the epileptic syndrome can usually be defined and the treatment can be focused. In critically ill patients, continuous EEG monitoring can define subclinical seizures, although a variety of periodic patterns may also be identified.
Summary: EEG is an invaluable tool in the diagnosis and management of a patient with epilepsy, and continuous EEG monitoring is useful in identifying subclinical seizures and nonconvulsive status epilepticus in critically ill patients.
Address correspondence to Dr Paul Rutecki, University of Wisconsin, Department of Neurology, 1685 Highland Avenue, Madison, WI 53705, firstname.lastname@example.org.
Relationship Disclosure: Dr Maganti serves on the speakers bureaus of GlaxoSmithKline and UCB and served as a consultant for Lundbeck. Dr Rutecki holds stock valued at more than $10,000 in Cyberonics, Inc; receives research support for a clinical trial from NeuroPace, Inc; and receives a grant support from the Epilepsy Foundation of America.
Unlabeled Use of Products/Investigational Use Disclosure: Drs Maganti and Rutecki report no disclosures.