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The epidemiology of post-stroke epilepsy according to stroke subtypes

G Benbir1, B Ince, M Bozluolcay

  • 1Stroke Unit, Department of Neurology, Cerrahpasa School of Medicine, Istanbul University, Istanbul, Turkey. drgulcinbenbir@yahoo.com

Acta Neurologica Scandinavica
|June 16, 2006
PubMed

Insights

Post-stroke epilepsy is more common in patients with venous infarctions. Hemorrhagic and venous strokes are frequently seen in epilepsy patients, often affecting the right hemisphere and middle cerebral artery territory.

Area of Science:

  • Neurology
  • Epileptology
  • Stroke Medicine

Background:

  • Stroke is a leading cause of epilepsy in individuals over 60.
  • Previous studies indicate a 2-4% incidence of post-stroke epilepsy.

Purpose of the Study:

  • To investigate the incidence and characteristics of epilepsy following different stroke types.
  • To identify risk factors and common locations for post-stroke epilepsy.

Main Methods:

  • Observational study including 1,428 stroke patients admitted between 1996 and 2005.
  • Analysis of epilepsy occurrence based on stroke etiology (ischemic, hemorrhagic, venous).

Main Results:

  • Overall post-stroke epilepsy incidence was 3.6% (51 patients).
  • Epilepsy was most frequent after venous infarctions (26.6%), followed by hemorrhagic (12.8%) and ischemic strokes (2.7%).
  • Hemorrhagic and venous infarctions were significantly more common in epilepsy patients (P<0.001).

Conclusions:

  • Venous infarctions are associated with a higher risk of epilepsy.
  • Hemorrhagic and venous strokes are more prevalent in post-stroke epilepsy cases.
  • Right hemisphere and middle cerebral artery territory involvement were common in affected patients.
Abstract

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