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Related Concept Videos

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.
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 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...
Antiepileptic Drugs: Glutamate Antagonists01:14

Antiepileptic Drugs: Glutamate Antagonists

Glutamate is a fundamental neurotransmitter in the central nervous system, playing a vital role in neuronal communication and various cognitive processes. Glutamate stands as the principal excitatory neurotransmitter in the brain. Its presence is crucial for the communication between neurons, underpinning essential processes such as synaptic transmission, neuronal excitability, and plasticity. These functions are vital for higher-order cognitive processes, including learning and memory. The...

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Related Experiment Video

Updated: Jun 23, 2026

Electromagnetic Source Imaging in Presurgical Evaluation of Children with Drug-Resistant Epilepsy
09:57

Electromagnetic Source Imaging in Presurgical Evaluation of Children with Drug-Resistant Epilepsy

Published on: September 20, 2024

Epilepsy.

Anthony G Marson1, Melissa Maguire, Sridharan Ramaratnam

  • 1University of Liverpool, Liverpool, UK.

BMJ Clinical Evidence
|May 19, 2009
PubMed
Summary
This summary is machine-generated.

This systematic review evaluates treatments for epilepsy, including anti-epileptic drugs, surgery, and behavioral therapies. It assesses benefits, risks, and effectiveness for various epilepsy types and remission stages.

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Electrophoretic Delivery of γ-aminobutyric Acid (GABA) into Epileptic Focus Prevents Seizures in Mice
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Manipulation of Epileptiform Electrocorticograms (ECoGs) and Sleep in Rats and Mice by Acupuncture
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Manipulation of Epileptiform Electrocorticograms (ECoGs) and Sleep in Rats and Mice by Acupuncture

Published on: December 22, 2016

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Electromagnetic Source Imaging in Presurgical Evaluation of Children with Drug-Resistant Epilepsy
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Electrophoretic Delivery of γ-aminobutyric Acid (GABA) into Epileptic Focus Prevents Seizures in Mice
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Published on: December 22, 2016

Area of Science:

  • Neurology
  • Clinical Evidence Synthesis

Background:

  • Epilepsy affects approximately 3% of the population lifetime.
  • A significant majority (70%) of individuals with epilepsy achieve remission.

Purpose of the Study:

  • To systematically review the benefits and risks of anti-epileptic drug treatment after a single seizure.
  • To evaluate monotherapy for newly diagnosed partial and generalized epilepsy.
  • To assess adjunctive treatments for drug-resistant epilepsy, remission relapse risks, behavioral interventions, and surgical options for temporal lobe epilepsy.

Main Methods:

  • Conducted a systematic review of 59 studies including systematic reviews, RCTs, and observational studies.
  • Searched major databases (Medline, Embase, Cochrane Library) up to April 2007.
  • Included harms alerts from regulatory agencies (FDA, MHRA) and performed GRADE evaluation.

Main Results:

  • Synthesized evidence on a wide range of interventions for epilepsy.
  • Evaluated the effectiveness and safety of specific anti-epileptic drugs (e.g., gabapentin, lamotrigine, sodium valproate).
  • Assessed surgical interventions like temporal lobectomy and amygdalohippocampectomy, as well as behavioral therapies (CBT, yoga).

Conclusions:

  • Presents comprehensive information on the effectiveness and safety of numerous epilepsy interventions.
  • Highlights evidence for drug treatments, surgical options, and behavioral therapies.
  • Provides a basis for clinical decision-making regarding epilepsy management.