Cohort study reveals edema and nonskull base location drive seizure risk in supratentorial meningioma patients, suggesting potential utility for intraoperative electrocorticographic mapping.
Nonskull base supratentorial meningiomas with surrounding edema have the highest risk for preoperative seizure. Long-term follow-up showing persistent seizures in meningioma patients with preoperative seizures raises the possibility that these patients may benefit from electrocorticographic mapping of adjacent cortex and resection of noneloquent, epileptically active cortex.
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Chen et al. (2017) studied this question.
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