Incidence of seizures after surgery for supratentorial meningiomas: a modern analysis

Journal of Neurosurgery
B S ChozickS H Greenblatt

Abstract

The authors have assessed the incidence of postoperative seizures in 158 patients with supratentorial meningiomas diagnosed by computerized tomography (CT) and/or magnetic resonance (MR) imaging, which theoretically should lead to early diagnosis and treatment and the potential for improved seizure outcome. Univariate chi-square and logistic regression analyses were performed 24 independent variables against the outcome variable of occurrence of a postoperative seizure. The median duration of preoperative seizures was 1 month, considerably shorter than that found in studies conducted prior to the advent of CT and MR imaging. Of 63 patients with a history of preoperative seizures, 40 (63.5%) had complete cessation of seizures after surgery. Twelve (92.3%) of 13 patients with one to three postoperative seizures eventually achieved complete seizure control, whereas only four (40%) of 10 patients with more than three postoperative seizures achieved this result. Overall 88.9% of patients with preoperative seizures achieved complete seizure control postoperatively. Multivariate analysis was used to identify six variables that were predictive of the occurrence of postoperative seizures: preoperative seizure history preoperative langua...Continue Reading

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