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Related Concept Videos

Seizures l: Introduction01:20

Seizures l: Introduction

Understanding seizures and epilepsy relies on key definitions that help in recognizing, classifying, and managing these disorders. These definitions provide a framework for recognizing, classifying, and managing seizure disorders.DefinitionsA seizure is a sudden, abnormal burst of electrical activity in the brain that can cause changes in awareness, movement, sensation, or behavior, depending on the area involved. Epilepsy is a chronic condition characterized by recurrent, unprovoked seizures,...
Seizures ll: Types01:19

Seizures ll: Types

Seizures are sudden bursts of abnormal electrical discharge in the brain that interfere with normal function. They are commonly divided into three groups: focal seizures, generalized seizures, and other types that do not fit neatly into either category.Focal SeizuresFocal seizures begin in a single brain region. When awareness is preserved, they are called focal aware seizures and may cause sensations such as tingling, unusual smells, or flashing lights. When awareness is impaired, they are...
Seizures: Classification01:13

Seizures: Classification

Epilepsy is primarily characterized by unpredictable seizures, either provoked by an identifiable factor, such as injury or illness, or unprovoked, occurring spontaneously without apparent cause.
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
Epilepsy and Seizures: Overview01:24

Epilepsy and Seizures: Overview

Epilepsy is a chronic neurological disease marked by recurrent, unpredictable seizures. These seizures are caused by abnormal electrical discharges in the brain, leading to behavior, sensation, or consciousness alterations. They can also cause transient impairment of awareness, interfering with daily activities.
Various factors can trigger epilepsy, including genetic factors, brain damage, metabolic causes, and unknown etiology. Diagnosis of epilepsy involves electroencephalography (EEG), which...
Epilepsy ll: Types01:22

Epilepsy ll: Types

Recurrent seizures, stemming from abnormal electrical activity in the brain, are the defining characteristic of epilepsy, a chronic neurological condition. Because seizure features vary greatly, epilepsy is classified using two systems: by seizure type and by epilepsy syndromes. These classifications enable clinicians to describe seizure patterns and select suitable treatment strategies.I. Classification by Seizure Type1. Focal EpilepsyFocal epilepsy begins in one hemisphere of the brain.
Antiepileptic Drugs: Sodium Channel Blockers01:08

Antiepileptic Drugs: Sodium Channel Blockers

Antiepileptic drugs are specialized medications that prevent seizures in individuals diagnosed with epilepsy. These drugs primarily function by blocking the movement of sodium ions through channels in the neuronal membrane, inhibiting the repetitive firing of action potentials often associated with seizures.
Sodium channel blockers modulate ion channels, particularly voltage-gated sodium channels. They block only sodium ion movement.
Among the most commonly prescribed antiepileptic drugs are...

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Related Experiment Video

Updated: Jul 14, 2026

Use of a Wireless Video-EEG System to Monitor Epileptiform Discharges Following Lateral Fluid-Percussion Induced Traumatic Brain Injury
09:16

Use of a Wireless Video-EEG System to Monitor Epileptiform Discharges Following Lateral Fluid-Percussion Induced Traumatic Brain Injury

Published on: June 21, 2019

Stroke-related seizures and epilepsy.

Jacques L De Reuck1

  • 1Stroke Unit, Department of Neurology, University Hospital, Gent, Belgium. jacques.dereuck@gmail.com

Neurologia I Neurochirurgia Polska
|May 29, 2007
PubMed
Summary

Seizures after stroke are common, especially with hemorrhagic strokes, and require antiepileptic drug treatment. Early-onset seizures indicate poor prognosis, while late-onset seizures frequently recur.

Area of Science:

  • Neurology
  • Neurosurgery
  • Epileptology

Background:

  • Stroke-related seizures lack established guidelines for risk factors, diagnosis, management, and treatment.
  • Seizures occur in 10.6% of intracerebral hemorrhage cases and 8.6% of ischemic stroke cases.
  • Early-onset seizures are associated with poor prognosis and high in-hospital mortality, particularly in hemorrhagic strokes.

Purpose of the Study:

  • To elucidate the risk factors, clinical characteristics, and management strategies for seizures following stroke.
  • To differentiate between early- and late-onset post-stroke seizures and their respective prognoses.
  • To highlight the necessity of antiepileptic drug treatment for post-stroke seizures.

Main Methods:

  • Review of existing literature and clinical data on stroke-related seizures.

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Published on: June 25, 2016

Inducing Post-Traumatic Epilepsy in a Mouse Model of Repetitive Diffuse Traumatic Brain Injury
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Inducing Post-Traumatic Epilepsy in a Mouse Model of Repetitive Diffuse Traumatic Brain Injury

Published on: February 10, 2020

Related Experiment Videos

Last Updated: Jul 14, 2026

Use of a Wireless Video-EEG System to Monitor Epileptiform Discharges Following Lateral Fluid-Percussion Induced Traumatic Brain Injury
09:16

Use of a Wireless Video-EEG System to Monitor Epileptiform Discharges Following Lateral Fluid-Percussion Induced Traumatic Brain Injury

Published on: June 21, 2019

Non-restraining EEG Radiotelemetry: Epidural and Deep Intracerebral Stereotaxic EEG Electrode Placement
06:58

Non-restraining EEG Radiotelemetry: Epidural and Deep Intracerebral Stereotaxic EEG Electrode Placement

Published on: June 25, 2016

Inducing Post-Traumatic Epilepsy in a Mouse Model of Repetitive Diffuse Traumatic Brain Injury
07:07

Inducing Post-Traumatic Epilepsy in a Mouse Model of Repetitive Diffuse Traumatic Brain Injury

Published on: February 10, 2020

  • Analysis of seizure incidence in relation to stroke type (hemorrhagic vs. ischemic).
  • Identification of patient subgroups and stroke characteristics associated with increased seizure risk.

    • Main Results:

    • Early-onset seizures have a low recurrence rate but a poor prognosis.
    • Late-onset seizures, occurring 6 months to 2 years post-stroke, exhibit a high recurrence rate.
    • Risk factors include partial anterior circulation syndrome and large cortical infarcts in parieto-temporal regions.
    • Post-stroke electroencephalography (EEG) may aid in predicting seizure risk.

    Conclusions:

    • Post-stroke seizures are detrimental and necessitate treatment with antiepileptic drugs.
    • Understanding the distinct patterns of early- and late-onset seizures is crucial for patient management.
    • Further research is needed to establish comprehensive guidelines for stroke-related seizures.