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Antiepileptic Drugs: Potassium Channel Activators01:20

Antiepileptic Drugs: Potassium Channel Activators

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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.
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Seizures l: Introduction01:20

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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,...
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Epilepsy and Seizures: Overview01:24

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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.
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Mania and Antimanic Drugs: Overview01:24

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Mania, a psychological condition characterized by elevated mood, increased energy, and reduced sleep need, is part of the bipolar disorder cycle. The exact cause of mania isn't entirely known, but it is thought to be a combination of genetic, environmental, and neurological factors. Bipolar disorder involves alternating manic and depressive episodes. Mood stabilizers like lithium, antipsychotics, and anticonvulsants help manage these episodes. Lithium carbonate is particularly effective as...
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Antiepileptic Drugs: Sodium Channel Blockers01:08

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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.
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Epilepsy ll: Types01:22

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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.
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Author Spotlight: Advancing Pediatric Epilepsy Surgery in Children Through Novel Biomarkers and Enhanced Localization
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Status epilepticus developing during lacosamide monotherapy.

Savvas S Papacostas1

  • 1Neurology Clinic B and School of Molecular Medicine, Cyprus Institute of Neurology and Genetics, Nicosia, Cyprus.

BMJ Case Reports
|January 29, 2015
PubMed
Summary

Lacosamide (LCM) monotherapy for epilepsy can lead to status epilepticus (SE) in rare cases. Careful pharmacovigilance is crucial when using lacosamide as a sole antiepileptic drug.

Area of Science:

  • Neurology
  • Clinical Pharmacology

Background:

  • Lacosamide (LCM) is an effective antiepileptic drug (AED) for partial-onset epilepsy, used adjunctively and in status epilepticus (SE).
  • LCM has demonstrated efficacy in monotherapy for epilepsy management.

Observation:

  • Two cases of partial-onset epilepsy are presented where patients developed status epilepticus (SE) while on lacosamide (LCM) monotherapy.
  • These patients had initially achieved seizure control with adjunctive LCM before transitioning to monotherapy.

Findings:

  • Both patients experienced SE recurrence after at least two months of LCM monotherapy, ruling out withdrawal-induced SE from concomitant AEDs.
  • This suggests a potential limitation or specific risk associated with lacosamide monotherapy in certain epilepsy patients.

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Implications:

  • Pharmacovigilance is essential for lacosamide (LCM) monotherapy to identify its therapeutic potential and limitations.
  • Vigilance is also necessary during the tapering of any concomitant antiepileptic drugs, as higher doses of AEDs may be required for monotherapy.