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Surgical treatment of epilepsy - clinical, radiological and histopathological findings in 139 children and adults



Surgical treatment of epilepsy - clinical, radiological and histopathological findings in 139 children and adults



Acta Neurologica Scandinavica 99(1): 8-15



The present study relates clinical and radiological data to histopathological diagnoses in the first 139 patients (children and adults) in the Goteborg Epilepsy Surgery series. Temporal lobe resections were most common (54.0%) followed by frontal lobe (18.0%) and multilobar resections (11.5%). All histopathological specimens were re-evaluated in connection with this study. Parenchymal malformations and atrophic-gliotic lesions were the most common histopathological findings. Microdysgenesis was more common than major malformations (24.5% versus 11.5%). When the MRI scans were blindly re-evaluated the MRI findings correlated with histopathological diagnosis in all of the vascular malformations, in 77.8% of the tumours, in 76.5% of the cases with hippocampal sclerosis but only in 28.6% of the major cortical development malformations. Hemispherectomies carried the best seizure outcome prognosis followed by temporal lobe resections (75.0% versus 57.3% seizure free 2 years after surgery). Vascular malformations carried the best, and microdysgenesis the worst prognosis (76.9% versus 39.4% seizure free).

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Accession: 011431009

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PMID: 9925233

DOI: 10.1111/j.1600-0404.1999.tb00652.x


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