Magnetoencephalography in Pediatric Lesional Epilepsy Surgery.
10.3346/jkms.2012.27.6.668
- Author:
Hunmin KIM
1
;
Byung Chan LIM
;
Woorim JEONG
;
June Sic KIM
;
Jong Hee CHAE
;
Ki Joong KIM
;
Chun Kee CHUNG
;
Yong Seung HWANG
;
Hee HWANG
Author Information
1. Department of Pediatrics, Seoul National University Bundang Hospital, Seongnam, Korea. neuroandy@snubh.org
- Publication Type:Case Reports ; Evaluation Studies
- Keywords:
Magnetoencephalography;
Epilepsy Surgery;
Localization;
Spike Source;
Magnetic Source Imaging
- MeSH:
Adolescent;
Brain/radionuclide imaging;
Brain Diseases/pathology;
Child;
Child, Preschool;
Epilepsies, Partial/pathology/*surgery;
Female;
Ganglioglioma/pathology;
Humans;
Infant;
Magnetic Resonance Imaging;
*Magnetoencephalography;
Male;
Malformations of Cortical Development/pathology;
Neoplasms, Neuroepithelial/pathology;
Positron-Emission Tomography;
Retrospective Studies;
Seizures/diagnosis
- From:Journal of Korean Medical Science
2012;27(6):668-673
- CountryRepublic of Korea
- Language:English
-
Abstract:
This study was performed to assess the usefulness of magnetoencephalography (MEG) as a presurgical evaluation modality in Korean pediatric patients with lesional localization-related epilepsy. The medical records and MEG findings of 13 pediatric patients (6 boys and 7 girls) with localization-related epilepsy, who underwent epilepsy surgery at Seoul National University Children's Hospital, were retrospectively reviewed. The hemispheric concordance rate was 100% (13/13 patients). The lobar or regional concordance rate was 77% (10/13 patients). In most cases, the MEG spike sources were clustered in the proximity of the lesion, either at one side of the margin (nine patients) or around the lesion (one patient); clustered spike sources were distant from the lesion in one patient. Among the patients with clustered spike sources near the lesion, further extensions (three patients) and distal scatters (three patients) were also observed. MEG spike sources were well lateralized and localized even in two patients without focal epileptiform discharges in the interictal scalp electroencephalography. Ten patients (77%) achieved Engel class I postsurgical seizure outcome. It is suggested that MEG is a safe and useful presurgical evaluation modality in pediatric patients with lesion localization-related epilepsy.
