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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: 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: 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...
Psychosurgery01:30

Psychosurgery

Psychosurgery, the surgical alteration or permanent removal of brain tissue to alleviate severe psychological conditions, stands as one of the most radical and controversial treatments in the history of mental health care. Its development and application have evolved significantly, marked by dramatic shifts in scientific understanding and ethical perspectives.
Historical Development of Psychosurgery
In the 1930s, Portuguese neurologist Antonio Egas Moniz introduced a surgical procedure designed...
Electroconvulsive Therapy01:30

Electroconvulsive Therapy

Electroconvulsive therapy (ECT), or shock therapy, remains a critical biomedical intervention for severe, treatment-resistant depression. While its origins can be traced back to Hippocrates' observations that malaria-induced convulsions alleviated mental illness, modern ECT has evolved significantly from its earlier, more primitive applications. First introduced in 1938 by Ugo Cerletti and his colleagues, ECT involves inducing controlled seizures using electrical currents. In its early years,...
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...

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Related Experiment Video

Updated: Jun 1, 2026

Anteromesial Temporal Lobectomy for Medically Intractable Temporal Lobe Epilepsy: An Operative Study
11:29

Anteromesial Temporal Lobectomy for Medically Intractable Temporal Lobe Epilepsy: An Operative Study

Published on: August 15, 2025

Alternative surgical approaches in epilepsy.

Paul R Gigante1, Robert R Goodman

  • 1Department of Neurological Surgery, Columbia University, New York, NY 10032, USA. pg2223@columbia.edu

Current Neurology and Neuroscience Reports
|May 18, 2011
PubMed
Summary

New surgical options for medically refractory epilepsy (MRE) show promise. Responsive neurostimulation and anterior thalamus deep brain stimulation (DBS) significantly reduce seizure frequency in patients unresponsive to medication.

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Published on: December 18, 2016

Area of Science:

  • Neurosurgery
  • Epileptology
  • Neuromodulation

Background:

  • Epilepsy surgery typically involves resecting seizure foci or disrupting propagation pathways.
  • These traditional surgical methods are not suitable for all patients with medically refractory epilepsy (MRE).
  • Vagus nerve stimulation has been used as a palliative treatment for MRE since 1997.

Purpose of the Study:

  • To evaluate the efficacy of novel surgical interventions for medically refractory epilepsy.
  • To present findings from large-scale trials of advanced neuromodulation techniques.

Main Methods:

  • The SANTE trial investigated bilateral anterior thalamus deep brain stimulation (DBS) for MRE using a randomized, double-blind design.
  • The RNS™ System pivotal trial assessed a closed-loop responsive neurostimulation system for MRE.

Main Results:

  • The SANTE trial demonstrated a significant reduction in seizure frequency with programmed anterior thalamus DBS.
  • The RNS™ System pivotal trial showed a sustained reduction in seizure frequency with responsive neurostimulation.

Conclusions:

  • Advanced neuromodulation techniques, including anterior thalamus DBS and responsive neurostimulation, offer effective surgical alternatives for MRE.
  • These interventions provide significant seizure reduction for patients with limited traditional surgical options.