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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 l: Introduction

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: 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: May 5, 2026

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

Pre-surgical evaluation for epilepsy surgery.

D W Loring¹, K J Meador

¹Department of Neurology, Medical College of Georgia, Augusta, Georgia 30912-3275, USA.

Neurosciences (Riyadh, Saudi Arabia)

|November 27, 2013

Summary

This summary is machine-generated.

Neuropsychological testing reveals subtle brain changes missed by imaging and aids epilepsy surgery planning. It assesses risks of deficits and confirms seizure origin in temporal lobe epilepsy patients.

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$Stereo-Electro-Encephalo-Graphy SEEG With Robotic Assistance in the Presurgical Evaluation of Medical Refractory Epilepsy: A Technical Note$

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Published on: June 13, 2016

Area of Science:

Neurology
Neuropsychology
Neurosurgery

Background:

Neuropsychological testing can detect subtle brain changes not visible through neuroimaging.
Epileptic activity can disrupt normal neural function, impacting cognitive abilities.
Pre-operative evaluation for epilepsy surgery is crucial for patient management.

Purpose of the Study:

To review the role of pre-operative neuropsychological testing in epilepsy surgery candidates.
To highlight the significance of this testing for assessing post-operative deficits.
To emphasize its utility in confirming seizure onset laterality in temporal lobe epilepsy.

Main Methods:

Focus on pre-operative neuropsychological assessment for temporal lobectomy candidates.
Review of existing literature on neuropsychology in epilepsy surgery.
Analysis of how testing informs surgical decisions and outcome prediction.

Main Results:

Neuropsychological testing provides critical data on functional brain status.
It helps predict risks of neuropsychological deficits after surgery.
It supports the localization of seizure onset, particularly in temporal lobe epilepsy.

Conclusions:

Pre-operative neuropsychological evaluation is essential for epilepsy surgery.
It guides surgical planning and helps mitigate post-operative risks.
This testing is particularly vital for temporal lobectomy due to extensive research and patient numbers.