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Related Concept Videos

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.
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: 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:
Genetic Screens02:46

Genetic Screens

Genetic screens are tools used to identify genes and mutations responsible for phenotypes of interest. Genetic screens help identify individuals or a group of people at risk of developing  genetic diseases and help them with early intervention, targeted therapy, and reproductive options.
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which result in visible changes...

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Related Experiment Video

Updated: May 30, 2026

Identification and Classification of Position-specific GABAA Receptor Subunit Missense Variants for Their Role In Hippocampal Pyramidal Neurons
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Genetic testing in epilepsy: what should you be doing?

Ingrid E Scheffer1

  • 1Professor of Paediatric Neurology, Departments of Medicine and Paediatrics, The University of Melbourne, Austin and Royal Children's Hospital, Senior Principal Research Fellow, Florey Neuroscience Institutes, and Director of Paediatrics, Austin Health, Melbourne, Australia.

Epilepsy Currents
|August 13, 2011
PubMed
Summary

Genetic testing is crucial for diagnosing epileptic encephalopathies, guiding treatment, and informing prognosis. Identifying causative mutations helps clinicians select appropriate molecular tests for patients with epilepsy.

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Area of Science:

  • Clinical Neurology
  • Molecular Genetics
  • Epilepsy Research

Background:

  • The increasing availability of molecular tests in epilepsy necessitates clear guidelines for clinical application.
  • Epileptic encephalopathies represent a key area for genetic testing due to the recognition of numerous distinct syndromes.
  • Identifying specific genetic mutations is vital for patient management and counseling.

Purpose of the Study:

  • To provide guidance on selecting appropriate molecular tests for patients with epilepsy.
  • To highlight the significance of genetic testing in diagnosing and managing epileptic encephalopathies.
  • To underscore the impact of identifying causative mutations on patient outcomes.

Main Methods:

  • Review of current molecular diagnostic techniques in epilepsy.
  • Analysis of genetic testing yields in various epilepsy syndromes.
  • Clinical case correlation with molecular findings.

Main Results:

  • Genetic testing is highly effective in diagnosing specific epileptic encephalopathies.
  • Identification of causative mutations significantly influences treatment decisions.
  • Molecular findings impact prognostic assessments and genetic counseling.

Conclusions:

  • Clinicians require clear criteria for ordering molecular tests in epilepsy.
  • Genetic testing is indispensable for the accurate diagnosis and management of epileptic encephalopathies.
  • Understanding the genetic basis of epilepsy improves patient care and family planning.