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Relative Localizing Value of Common Tests used in the Preoperative Investigation of Epileptic Patients

Published online by Cambridge University Press:  18 September 2015

Jean-Marc Saint-Hilaire ,
Francois Richer ,
André Turmel ,
Isabelle Rouleau  and
Guy Bouvier
Jean-Marc Saint-Hilaire*
Affiliation:
Service de Neurologie, Hôpital Notre-Dame, Université de Montréal, Montreal
Francois Richer
Affiliation:
Service de Neurologie, Hôpital Notre-Dame, Université de Montréal, Montreal Université du Québec a Montréal, Montreal
André Turmel
Affiliation:
Service de Neurologie, Hôpital Notre-Dame, Université de Montréal, Montreal
Isabelle Rouleau
Affiliation:
Service de Neurologie, Hôpital Notre-Dame, Université de Montréal, Montreal
Guy Bouvier
Affiliation:
Université du Québec a Montréal, Montreal
*
Service de Neurologie, Hôpital Notre-Dame, 1560 Sherbrooke E., Montréal, Québec, Canada H2L 4M1
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Abstract:

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We have compared the relative localizing value of common tests in the presurgical evaluation of epilepsy in 73 patients with depth electrode (SEEG) confirmed epileptogenic foci and excellent surgical outcome. We found the tests of abnormality (CT, amytal, neuropsychology) to be frequently non-informative and often discordant with SEEG. The EEG was concordant with the SEEG in 38% of cases and provided lateralization in 78%. EEG was less localizing than ictal behavior in frontals but not in temporals. The need for SEEG is rather evident in these results but could become attenuated by the development of the localizing power of scalp EEG.

Type
Research Article
Information
Canadian Journal of Neurological Sciences , Volume 18 , Issue S4 , November 1991 , pp. 598 - 600
Copyright
Copyright © Canadian Neurological Sciences Federation 1991

References

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