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Intracranial EEG findings in patients with lesional lateral temporal lobe epilepsy by Naotaka Usui; Tadahiro Mihara; Koichi Baba; Kazumi Matsuda; Takayasu Tottori; Shuichi Umeoka; Fumihiro Nakamura; Kiyohito Terada; Keiko Usui; Yushi Inoue is a Medicine article available to read on EtoBox.

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## Purpose: Intracranial eeg in patients with lesional lateral temporal lobe epilepsy is rarely reported. therefore, the number of patients with seizures arising independently from ipsilateral mesial structures or contralateral hemisphere has not been clarified. we analyzed the intracranial eeg of cases with localized lesion in the lateral temporal cortex. ## Methods: We studied 15 patients who satisfied the following criteria: (1) mri depicted a lesion less than 4cm in diameter located lateral to the collateral sulcus and at least 3cm posterior to the temporal pole; (2) intracranial eeg with electrodes placed on bilateral temporal lobes captured at least one complex partial seizure; and (3) postoperative follow-up period of 2 years or longer. the mean age of seizure onset was 16.6 years (range, 11-25) and that at surgery was 26.7 years (range, 16-36). ## Results: A total of 147 complex partial seizures, 51 simple partial seizures, 16 secondarily generalized seizures, and over 80 subclinical seizures were recorded. on the lesional side, many clinical seizures were recorded from the lateral cortex. independent of the lateral temporal onset seizures, ictal discharges originating from

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Author

Naotaka Usui; Tadahiro Mihara; Koichi Baba; Kazumi Matsuda; Takayasu Tottori; Shuichi Umeoka; Fumihiro Nakamura; Kiyohito Terada; Keiko Usui; Yushi Inoue

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0920-1211)

Published

2008

Language

EN

Field

Medicine (Health Sciences)