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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...
Epilepsy ll: Types01:22

Epilepsy ll: Types

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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Related Experiment Video

Updated: Jul 3, 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

Selective versus non-selective temporal lobe surgery for epilepsy.

R A Mackenzie1, J Matheson, M Ellis

  • 1Neuropsychiatric Institute, Prince Henry Hospital, Sydney, NSW 2036, Australia.

Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia
|April 1, 1997
PubMed
Summary
This summary is machine-generated.

Anterior temporal lobectomy (ATL) is more effective for seizure freedom in non-lesional temporal lobe epilepsy than selective amygdalohippocampectomy (AH). ATL should be the routine procedure, though AH may be suitable for select patients.

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Network Analysis of Foramen Ovale Electrode Recordings in Drug-resistant Temporal Lobe Epilepsy Patients
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Last Updated: Jul 3, 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

Network Analysis of Foramen Ovale Electrode Recordings in Drug-resistant Temporal Lobe Epilepsy Patients
09:32

Network Analysis of Foramen Ovale Electrode Recordings in Drug-resistant Temporal Lobe Epilepsy Patients

Published on: December 18, 2016

Area of Science:

  • Neurosurgery
  • Epilepsy Surgery
  • Neurology

Background:

  • Non-lesional temporal lobe epilepsy (TLE) presents a surgical challenge.
  • Surgical options include anterior temporal lobectomy (ATL) and selective amygdalohippocampectomy (AH).

Purpose of the Study:

  • To compare the efficacy and outcomes of ATL versus AH for non-lesional TLE.
  • To determine the optimal surgical approach for temporal lobe epilepsy.

Main Methods:

  • A retrospective analysis of 100 patients undergoing temporal lobe operations over 10 years.
  • Patients were divided into two groups: 72 undergoing ATL and 28 undergoing AH.
  • Outcomes assessed included seizure freedom and patient satisfaction.

Main Results:

  • Anterior temporal lobectomy (ATL) resulted in significantly higher seizure freedom rates (60%) compared to selective amygdalohippocampectomy (AH) (21%) (P < 0.005).
  • Unsatisfactory outcomes were less frequent after ATL (15%) than AH (50%) (P < 0.01).
  • Fourteen AH patients required a subsequent ATL, with some improvement noted.

Conclusions:

  • Anterior temporal lobectomy (ATL) is the preferred routine surgical procedure for non-lesional temporal lobe epilepsy due to superior seizure control.
  • Selective amygdalohippocampectomy (AH) may be considered for specific patients with preserved verbal memory and concordant preoperative findings.