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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,...
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...
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:
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...
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.
Ischemic Stroke l: Introduction01:15

Ischemic Stroke l: Introduction

Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.

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Related Experiment Video

Updated: Jun 25, 2026

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

[Post-stroke epilepsy].

T Temprano1, J Salas-Puig, S Calleja-Puerta

  • 1Servicio de Neurología, Hospital Universitario Central de Asturias, 33006 Oviedo, Asturias, España. teresatemp@hotmail.com

Revista De Neurologia
|February 20, 2009
PubMed
Summary

This study examined post-stroke epilepsy, finding a link between cardioembolic strokes and later seizure onset. While seizure types varied, over half of patients achieved seizure freedom with antiepileptic treatment.

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Inducing Post-Traumatic Epilepsy in a Mouse Model of Repetitive Diffuse Traumatic Brain Injury
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Use of a Wireless Video-EEG System to Monitor Epileptiform Discharges Following Lateral Fluid-Percussion Induced Traumatic Brain Injury
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Area of Science:

  • Neurology
  • Epileptology
  • Stroke Medicine

Context:

  • Post-stroke epilepsy (PSE) is a significant complication following cerebrovascular events.
  • Understanding PSE characteristics is crucial for effective patient management and prognosis.
  • This study investigates the clinical spectrum and treatment outcomes of epilepsy in stroke survivors.

Purpose:

  • To characterize seizures in post-stroke epilepsy patients.
  • To evaluate epilepsy clinical behavior based on early versus late seizure onset.
  • To assess the efficacy of antiepileptic drug (AED) treatment in PSE.

Summary:

  • A retrospective analysis of 41 post-stroke epilepsy patients revealed a mean age of 54.7 years at stroke onset.
  • Ischemic strokes (75.6%) were more common than hemorrhagic (24.4%), with atherothrombotic and cardioembolic etiologies predominating.
  • Seizures, predominantly secondarily generalized partial (60.9%), occurred a median of 18 months post-stroke, with an association noted between cardioembolic etiology and late onset.
  • Early (36.6%) versus late (63.4%) seizure onset showed similar clinical courses.
  • Treatment with phenytoin, carbamazepine, or lamotrigine resulted in seizure freedom in 53.7% of patients.

Impact:

  • Findings provide insights into the temporal relationship between stroke type and epilepsy development.
  • The study highlights the effectiveness of AEDs in managing post-stroke seizures, with a notable proportion achieving seizure control.
  • Results can inform clinical practice regarding the monitoring and treatment strategies for epilepsy after stroke.