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[Activation of epilepsy-typical potentials in the EEG (author's transl)].

Authors
  • Fröscher, W
  • Stefan, H
Type
Published Article
Journal
Fortschritte der Neurologie, Psychiatrie, und ihrer Grenzgebiete
Publication Date
Dec 01, 1980
Volume
48
Issue
12
Pages
648–659
Identifiers
PMID: 6905793
Source
Medline
License
Unknown

Abstract

In the case of seizures which are difficult to diagnose, the demonstration of epilepsy-typical graphoelements in the EEG confirms the suspected presence of an epilepsy. Activation methods are employed, since epilepsy-typical potentials may be even absent in established cerebral convulsibility in the routine wake EEG. The purpose of these method is the activation of epilepsy-typical potentials in patients, whereas the activation should not be so strong that those potentials may also be activated in healthy persons - since they can be provoked by a sufficiently strong stimulation in any individual. Hyperventilation, photostimulation, sleep, sleep deprivation and, in addition, drug provocation with Bemergrid, have proved most effective in routine diagnostic procedures; the diagnostic significance of the latter is still most problematic. - The various activation methods show a variably marked effect in the different types of seizures.

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