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KMID : 0191119940090050409
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Journal of Korean Medical Science
1994 Volume.9 No. 5 p.409 ~ p.413
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Surgery for seizure-related structural lesions of the brain with intraoperative acute recording(ECoG) and functional mapping
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Son EI
Yi SD/Lee SW/Lee HC/Yim MB/Kim IH
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Abstract
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Epilepsy surgery has been demonstrated to be an effective alternative treatment for intractable
partial or localization related epilepsy. Primary intracranial neoplasms and other structural
lesions of the brain are important etiological factors in patients with partial seizure disorders.
A neuroimaging identified lesion in patients with seizures, not necessarily medically refractory,
may also be an indication for surgery in selected patients. Twelve patients operated on under local
or general anesthesia for resection surgery underwent intraoperative recording(electrocorticogram)
and/or functional mapping by electrical stimulation or somatosensory evoked potentials-(SSEPs) for
identification of the secondary epileptogenic area and/or functional area; 2 meningiomas, 5
astrocytomas, 1 gangliocytoma, 1 abscess, 1 small AVM, 1 cysticercosis and one gliosis by previous
intracerebral hemorrhage with middle cerebral artery(MCA) aneurysm. Among these, additional corticectomy
or anterior temporal lobectomy was performed in eleven patients. All the patients did well after surgery
with good outcomes as seizure free in nine(75%) out of 12 patients with 11.9 months of follow-up period,
without any neurological deficits. Intraoperative recording and functional mapping of adjacent areas of
the structural lesions of the brain are useful in surgery and can guide the extent of further resection.
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KEYWORD
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