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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...
Antiepileptic Drugs: Sodium Channel Blockers01:08

Antiepileptic Drugs: Sodium Channel Blockers

Antiepileptic drugs are specialized medications that prevent seizures in individuals diagnosed with epilepsy. These drugs primarily function by blocking the movement of sodium ions through channels in the neuronal membrane, inhibiting the repetitive firing of action potentials often associated with seizures.
Sodium channel blockers modulate ion channels, particularly voltage-gated sodium channels. They block only sodium ion movement.
Among the most commonly prescribed antiepileptic drugs are...
Antiepileptic Drugs: Potassium Channel Activators01:20

Antiepileptic Drugs: Potassium Channel Activators

Ezocgabine or retigabine, an antiepileptic drug of remarkable efficacy, has revolutionized the management of seizures. It is a potassium channel activator, explicitly targeting the family of Q subtype potassium channels. It enhances the transmembrane potassium currents, regulating neuronal excitability. This action stabilizes the resting membrane potential, a pivotal factor in mitigating the hyperexcitability that characterizes epilepsy.
Ezogabine has gained approval as an adjunctive treatment...
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...
Antiepileptic Drugs: Calcium Channel Blockers01:17

Antiepileptic Drugs: Calcium Channel Blockers

Calcium channel blockers, a class of antiepileptic drugs, regulate the flow of calcium ions within neurons.
Calcium channel blockers exert their antiepileptic effects by targeting T-type calcium channels, which are integral to transmitting nerve signals in the central nervous system. These channels allow the passage of calcium ions, which are vital for neuronal communication. By inhibiting T-type calcium channels, calcium channel blockers effectively reduce the release of neurotransmitters and...
Antiepileptic Drugs: GABAergic Pathway Potentiators01:18

Antiepileptic Drugs: GABAergic Pathway Potentiators

γ-aminobutyric acid or GABA, plays a pivotal role as an inhibitory neurotransmitter in the brain. GABA pathway potentiators, also known as GABAergic drugs, are a class of pharmaceutical agents designed to enhance the functioning of the GABAergic system. These medications primarily treat epilepsy, a neurological disorder characterized by recurrent seizures.
The key GABA pathway potentiators used in epilepsy management are as follows.
Benzodiazepines are a well-known class of drugs used for their...

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Related Experiment Video

Updated: Jun 19, 2026

Electrophoretic Delivery of γ-aminobutyric Acid (GABA) into Epileptic Focus Prevents Seizures in Mice
07:01

Electrophoretic Delivery of γ-aminobutyric Acid (GABA) into Epileptic Focus Prevents Seizures in Mice

Published on: May 16, 2019

Medication policy after epilepsy surgery.

Kim Boshuisen1, Olga Braams, Aag Jennekens-Schinkel

  • 1Department of Child Neurology, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, Utrecht, The Netherlands.

Pediatric Neurology
|October 13, 2009
PubMed
Summary
This summary is machine-generated.

Complete resection of the epileptogenic zone in children undergoing epilepsy surgery may allow for antiepileptic drug (AED) withdrawal. Early discontinuation of AEDs in selected cases was associated with sustained seizure freedom, suggesting long-term medication may not be necessary.

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

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Full-Endoscopic Surgery for Hypothalamic Hamartoma Resection
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Full-Endoscopic Surgery for Hypothalamic Hamartoma Resection

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Last Updated: Jun 19, 2026

Electrophoretic Delivery of γ-aminobutyric Acid (GABA) into Epileptic Focus Prevents Seizures in Mice
07:01

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Published on: May 16, 2019

Stereo-Electro-Encephalo-Graphy (SEEG) With Robotic Assistance in the Presurgical Evaluation of Medical Refractory Epilepsy: A Technical Note
05:54

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

Published on: June 13, 2016

Full-Endoscopic Surgery for Hypothalamic Hamartoma Resection
02:22

Full-Endoscopic Surgery for Hypothalamic Hamartoma Resection

Published on: April 12, 2024

Area of Science:

  • Pediatric Neurology
  • Epilepsy Surgery
  • Clinical Pharmacology

Background:

  • Epilepsy surgery aims to achieve seizure freedom by resecting the epileptogenic zone.
  • Postsurgical medication management, specifically antiepileptic drug (AED) withdrawal, is a critical aspect of patient care.
  • Understanding the optimal timing and criteria for AED withdrawal is essential for improving outcomes in pediatric epilepsy surgery.

Purpose of the Study:

  • To analyze postsurgical medication policies in children following epilepsy surgery.
  • To investigate the relationship between AED withdrawal timing, seizure recurrence, and surgical outcomes.
  • To determine if long-term AED continuation is necessary after complete resection of the epileptogenic zone.

Main Methods:

  • Retrospective review of postsurgical medication policies for 109 children (0-16 years) who underwent epilepsy surgery (1991-2005).
  • Calculation and analysis of intervals between surgery and initiation/completion of AED withdrawal.
  • Correlation of seizure recurrence with demographic variables, epilepsy characteristics, and AED withdrawal decisions.

Main Results:

  • Postoperative seizure freedom was significantly associated with complete surgical resection (P = 0.008).
  • AEDs were never withdrawn in 19 of 24 children (79%) who experienced seizure recurrence.
  • Mean intervals to start and complete AED withdrawal were 1.71 and 2.86 years, respectively; early withdrawal (0.6-0.8 years) in 8 children was not associated with seizure recurrence.

Conclusions:

  • Complete resection of the epileptogenic zone may obviate the need for long-term AEDs in pediatric epilepsy surgery.
  • Seizure recurrence was not associated with the decision to withdraw AEDs, and relapse timing was similar in children on and off medication.
  • Optimal timing for AED withdrawal requires further investigation, but early discontinuation appears safe in selected cases with complete resection.