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Epilepsy and Seizures: Overview

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: Classification

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:

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Related Experiment Video

Updated: Sep 14, 2025

Author Spotlight: Advancing Pediatric Epilepsy Surgery in Children Through Novel Biomarkers and Enhanced Localization

Author Spotlight: Advancing Pediatric Epilepsy Surgery in Children Through Novel Biomarkers and Enhanced Localization

Published on: September 20, 2024

Childhood epilepsy.

Ramshekhar N Menon¹, J Helen Cross²

¹Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram, India.

Lancet (London, England)

|July 20, 2025

Summary

This summary is machine-generated.

Childhood epilepsies present unique challenges, requiring accurate diagnosis to guide treatment. Early identification of treatable epilepsy types is crucial for improving neurodevelopmental outcomes in children.

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Interictal High Frequency Oscillations Detected with Simultaneous Magnetoencephalography and Electroencephalography as Biomarker of Pediatric Epilepsy

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Interictal High Frequency Oscillations Detected with Simultaneous Magnetoencephalography and Electroencephalography as Biomarker of Pediatric Epilepsy

Interictal High Frequency Oscillations Detected with Simultaneous Magnetoencephalography and Electroencephalography as Biomarker of Pediatric Epilepsy

Published on: December 6, 2016

Area of Science:

Pediatric Neurology
Clinical Neuroscience

Background:

Childhood epilepsies encompass diverse syndromes, including developmental and epileptic encephalopathies, and specific seizure types.
Accurate etiological diagnosis (structural, genetic, metabolic, infectious, autoimmune) is increasingly critical.

Purpose of the Study:

To highlight the diagnostic challenges and evolving treatment landscape for childhood epilepsies.
To emphasize the importance of early identification for neurodevelopmental outcomes and the potential of precision medicine.

Main Methods:

Review of current understanding and emerging evidence in childhood epilepsy.
Emphasis on clinical examination, electrophysiology, and etiological investigations.

Main Results:

Diagnosis requires a multi-faceted approach, often needing specialist input and advanced diagnostics.
Evidence-based treatments are emerging for specific syndromes like infantile epileptic spasm syndrome, Dravet syndrome, and Lennox-Gastaut syndrome.

Conclusions:

Early and accurate diagnosis is paramount for effective management and improved neurodevelopmental outcomes in pediatric epilepsy.
Further research into pathophysiology, cognitive effects, and precision medicine is essential.