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[Neuropathologic findings in chronic epilepsy]

H K Wolf1, O D Wiestler

  • 1Institut für Neuropathologie der Universität Bonn.

Laryngo- Rhino- Otologie
|February 1, 1995
PubMed
Summary
This summary is machine-generated.

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Surgical treatment for chronic epilepsy is rising. Review of 279 epilepsy specimens found structural alterations, including brain tumors and malformations, in 89%, suggesting these cause intractable epilepsy.

Area of Science:

  • Neuropathology
  • Neurosurgery
  • Epileptology

Context:

  • Surgical interventions for chronic epilepsy are increasingly common.
  • A significant number of patients with chronic, drug-resistant epilepsy undergo surgical treatment.
  • The University of Bonn Medical Centre has a substantial collection of surgical specimens from epilepsy patients.

Purpose:

  • To investigate the histopathological findings in surgical specimens from patients with chronic pharmaco-resistant epilepsies.
  • To identify common structural alterations associated with intractable epilepsy.
  • To correlate histopathological findings with clinical presentation in epilepsy surgery.

Summary:

  • A review of 279 surgical specimens from patients with chronic pharmaco-resistant epilepsies revealed specific histopathological findings in 89% of well-preserved samples.

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  • The most frequent focal lesions identified were low-grade brain tumors (gangliogliomas, pilocytic astrocytomas, dysembryoplastic neuroepithelial tumors).
  • Other common findings included glioneuronal and vascular malformations, and Ammon's horn sclerosis, indicating structural alterations are frequent causes of intractable epilepsy.

    • Impact:

    • This study highlights the frequent presence of structural abnormalities in patients with chronic intractable epilepsy.
    • Findings support the role of specific histopathological lesions in the etiology of drug-resistant epilepsy.
    • The results underscore the importance of detailed neuropathological examination in epilepsy surgery planning and understanding disease mechanisms.