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Related Concept Videos

Epilepsy and Seizures: Overview01:24

Epilepsy and Seizures: Overview

1.7K
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...
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Epilepsy ll: Types01:22

Epilepsy ll: Types

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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.
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Seizures: Classification01:13

Seizures: Classification

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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:
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Seizures l: Introduction01:20

Seizures l: Introduction

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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,...
13
Seizures ll: Types01:19

Seizures ll: Types

21
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...
21

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Related Experiment Video

Updated: Apr 22, 2026

Author Spotlight: Advancing Pediatric Epilepsy Surgery in Children Through Novel Biomarkers and Enhanced Localization
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Pediatric status epilepticus: identification and evaluation.

Emily R Freilich1, John M Schreiber, Tesfaye Zelleke

  • 1Department of Neuroscience, Children's National Health System, Washington, District of Columbia, USA.

Current Opinion in Pediatrics
|October 15, 2014
PubMed
Summary
This summary is machine-generated.

Status epilepticus is a growing neurologic emergency. Prompt diagnosis and evaluation, including advanced imaging and genetic testing, are crucial for effective management and treatment of this life-threatening condition in children.

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Area of Science:

  • Neurology
  • Pediatric Emergency Medicine

Background:

  • Status epilepticus (SE) is an increasing neurologic emergency.
  • Evolving definitions and improved detection contribute to rising incidence.
  • Current understanding requires updates on identification and etiology.

Purpose of the Study:

  • Present the current definition of SE, including a modified operational definition.
  • Provide updates on identifying children with SE.
  • Discuss etiologic considerations and diagnostic testing rationale.

Main Methods:

  • Review of recent literature and clinical data.
  • Analysis of diagnostic modalities including MRI, CT, EEG, and genetic testing.
  • Evaluation of pediatric intensive care unit (PICU) data for electrographic seizures.

Main Results:

  • MRI demonstrates benefits over CT in new-onset SE.
  • High rates of electrographic seizures identified in unexplained acute encephalopathy.
  • Genetic testing is recommended for young children with recurrent SE.

Conclusions:

  • Early recognition and diagnostic evaluation are vital for managing SE.
  • Identifying the cause of SE may necessitate specific treatments.
  • Comprehensive evaluation may include laboratory work, neuroimaging, EEG, lumbar puncture, and genetic testing.