Chapter

Electroencephalography in the Surgical Evaluation of Epilepsy

Joseph F. Drazkowski

in Clinical Neurophysiology

Third edition

Published on behalf of © Mayo Foundation for Medical Education and Research

Published in print April 2009 | ISBN: 9780195385113
Published online April 2013 | e-ISBN: 9780199322770 | DOI: http://dx.doi.org/10.1093/med/9780195385113.003.0015

Series: Contemporary Neurology Series

Electroencephalography in the Surgical Evaluation of Epilepsy

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As technology advances, the availability and use of minute microprocessors may change the way we evaluate the patient with epilepsy. Currently trials are ongoing using permanently implanted electronic devices that are capable of recording limited but chronic EEG from depth or grid leads.65 The device has been shown to be able to analyze ongoing EEG and detect the onset of seizures by various algorithms and in response provide a small electrical shock in an attempt to abort the ictal activity, while other permanent devices stimulate at scheduled intervals.66 Trending data, brief samples, and seizures may be easily downloaded for analysis via the Internet. The ability to safely record and detect seizures on a chronic basis may change future treatment strategies. The current study and use of such devices is limited to patients felt not to be resective surgical candidates and are able to be participants in ongoing clinical studies.

Chapter.  6321 words.  Illustrated.

Subjects: Neurology

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