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Effect of Epilepsy Surgery Based on Magnetic Resonance Imaging (MRI) Classification Masami FUJII 1 , Tatsuo AKIMURA 1 , Hisashi KUBOTA 1 , Hiroaki YASUDA 1 , Haruhide ITO 1 , Takashi HAYASHI 2 , Miki NISHIKAWA 2 , Hiroko OGATA 3 1Departments of NeurosurgeryYamaguchi University School of Medicine 2Departments of Pediatrics, Yamaguchi University School of Medicine 3Department of Neuropediatrics, Shimonoseki Kosei Hospital Keyword: magnetic resonance imaging(MRI) , epilepsy surgery , lesionectomy , outcome pp.23-29
Published Date 2000/1/10
DOI https://doi.org/10.11477/mf.1436901832
  • Abstract
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We prospectively analyzed the effect of surgical procedures in epilepsy patients, except for those withmesial temporal lobe epilepsy. Twenty patients with a mean age of 26 years (range 3 to 58 years, 10 maleand 10 female) underwent the surgical procedures. These patients were divided into 3 groups according to MR1 findings, as follows ; group A (localized type) : localized lesions such as angiomas or benign tumors,group B (widespread type) : widespread lesions such as regional encephalitis or stroke, visible on anato-mical neuroimaging, and group C (cryptic type) : no lesion visible on anatomical neuroimaging. Followingsurgery, 11 (85%) of the 13 patients in group A were seizure-free, one showed worthwhile improvement,and one, whose lesion was not removed totally, was unchanged. In group B, two patients (50%) wereseizure-free and 2 (50%) showed worthwhile improvement. All the patients in group C showed worthwhileimprovement. Lesionectomy, cortical excision, multiple suhpial transection (MST) or a combination ofthese procedures were effective in groups A and B. Patients in group C had a chance to obtain worthwhileimprovement by corpus callosotomy or cortical excision. Intracranial EEG recording provides useful in-formation for epilepsy surgery in intractable cases.


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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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