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Related Experiment Videos

Seizures after stroke: a prospective multicenter study.

C F Bladin1, A V Alexandrov, A Bellavance

  • 1Department of Neuroscience, Box Hill Hospital, Nelson Road, Box Hill 3128, Melbourne, Australia.

Archives of Neurology
|November 14, 2000
PubMed
Summary
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Seizures are more common after hemorrhagic stroke than ischemic stroke. Cortical location and stroke disability are key risk factors, with only a few patients developing epilepsy.

Area of Science:

  • Neurology
  • Stroke Medicine
  • Epileptology

Background:

  • Existing research on post-stroke seizures is limited by retrospective designs and small sample sizes.
  • Much of the current understanding of seizures after stroke lacks robust evidence.
  • This study addresses the need for prospective, evidence-based data on post-stroke seizures.

Purpose of the Study:

  • To determine the incidence of seizures following acute stroke.
  • To identify the outcomes associated with seizures after stroke.
  • To elucidate the specific risk factors contributing to seizures post-stroke.

Main Methods:

  • An international, multicenter, prospective, analytic inception cohort study.
  • Inclusion of 1897 consecutive patients with acute stroke, with a mean follow-up of 9 months.

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  • Primary outcome measures included the occurrence of seizures, stroke disability, and mortality.

    • Main Results:

    • Seizures occurred in 8.9% of patients (10.6% hemorrhagic, 8.6% ischemic stroke).
    • Hemorrhagic stroke significantly increased seizure risk (HR 1.85).
    • Cortical location and stroke disability were risk factors for ischemic stroke seizures; cortical location for hemorrhagic stroke seizures. Epilepsy developed in 2.5% of patients, with late-onset seizures predicting epilepsy after ischemic stroke.

    Conclusions:

    • Seizures are more frequent in hemorrhagic stroke compared to ischemic stroke.
    • A small proportion of stroke survivors develop epilepsy.
    • Disabling cortical infarcts/hemorrhages increase seizure likelihood; late-onset seizures elevate epilepsy risk.