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Related Concept Videos

Epilepsy and Seizures: Overview01:24

Epilepsy and Seizures: Overview

271
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...
271
Seizures: Classification01:13

Seizures: Classification

577
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:
577
Antiepileptic Drugs: Potassium Channel Activators01:20

Antiepileptic Drugs: Potassium Channel Activators

270
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...
270
Antiepileptic Drugs: Glutamate Antagonists01:14

Antiepileptic Drugs: Glutamate Antagonists

504
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...
504
Antiepileptic Drugs: GABAergic Pathway Potentiators01:18

Antiepileptic Drugs: GABAergic Pathway Potentiators

609
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...
609
Antiepileptic Drugs: Calcium Channel Blockers01:17

Antiepileptic Drugs: Calcium Channel Blockers

597
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...
597

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Preoperative limbic cortical thinning in mesial temporal lobe epilepsy surgical candidates is associated with pre-existing and de novo postoperative depression.

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Related Experiment Video

Updated: Sep 5, 2025

Assessment of Memory Function in Pilocarpine-induced Epileptic Mice
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[Cognitive deficits in epilepsy].

Kirsten Vinter1, Mette Buhl Callesen2, Tina Edstoft Kristensen2

  • 1Afdeling for Hjerne- og Nervesygdomme, Københavns Universitetshospital - Rigshospitalet.

Ugeskrift for Laeger
|July 5, 2022
PubMed
Summary

Epilepsy involves more than seizures; cognitive dysfunction is a key symptom requiring early identification and management. Addressing these deficits is crucial for improving quality of life in individuals with epilepsy.

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Area of Science:

  • Neurology
  • Neuroscience
  • Cognitive Science

Background:

  • Cognitive deficits are prevalent in epilepsy, significantly impacting daily life, education, and employment.
  • These cognitive symptoms often precede seizures and can persist even after achieving seizure freedom.
  • Epilepsy is increasingly recognized as a condition where cognitive dysfunction is a core symptom, stemming from underlying brain pathophysiology.

Purpose of the Study:

  • To highlight that epilepsy encompasses more than just seizures, emphasizing cognitive dysfunction as a critical aspect.
  • To underscore the need for early identification and management of cognitive difficulties in epilepsy.
  • To advocate for integrated care approaches, including rehabilitation and cross-sector communication.

Main Methods:

  • This is a review article synthesizing current understanding of cognitive deficits in epilepsy.
  • The review examines the relationship between epileptic activity, underlying brain pathology, and cognitive dysfunction.
  • It analyzes the implications of cognitive symptoms for individuals with epilepsy.

Main Results:

  • Cognitive dysfunction is an integral symptom of epilepsy, not solely a consequence of seizures.
  • Cognitive impairments are frequently present before seizure onset and can endure post-seizure remission.
  • The underlying pathophysiology of epilepsy directly contributes to cognitive deficits.

Conclusions:

  • Epilepsy requires a holistic approach, addressing both seizures and cognitive dysfunction.
  • Early detection of cognitive difficulties is essential for timely intervention and support.
  • Effective management necessitates coordinated rehabilitation strategies and accessible communication across healthcare and social sectors.