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Intractable epilepsy after a functional hemispherectomy: important lessons from an unusual case. Case report.

S Mittal1, J P Farmer, B Rosenblatt

  • 1Division of Neurosurgery, Montreal Children's Hospital, Quebec, Canada.

Journal of Neurosurgery
|March 10, 2001
PubMed
Summary
This summary is machine-generated.

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Residual seizures after functional hemispherectomy can occur. This case highlights that even with extensive surgery, residual frontal basal tissue, especially if dysplastic, may cause refractory epilepsy.

Area of Science:

  • Neurosurgery
  • Epileptology
  • Pediatric Neurology

Background:

  • Functional hemispherectomy is a treatment for catastrophic epilepsy.
  • Residual seizures occur in about 20% of patients post-surgery.

Observation:

  • An 8-year-old boy with intractable epilepsy underwent hemispherectomy.
  • New seizure patterns emerged, localized to residual frontobasal tissue.

Findings:

  • Complete disconnection was achieved, except for residual frontal basal tissue.
  • Resection of this dysplastic tissue resulted in 21 months of seizure freedom.

Implications:

  • Residual frontal basal tissue can be a source of refractory seizures post-hemispherectomy.
  • Thorough assessment is crucial for patients with persistent seizures after surgery.

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