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The Role of Neuropathology Evaluation in the Nonclinical Assessment of Seizure Liability.
Toxicol Pathol
December 2024
GEMpath, Inc., Longmont, Colorado, USA.
Test article (TA)-induced seizures represent a major safety concern in drug development. Seizures (altered brain wave [electrophysiological] patterns) present clinically as abnormal consciousness with or without tonic/clonic convulsions (where "tonic" = stiffening and "clonic" = involuntary rhythmical movements). Neuropathological findings following seizures may be detected using many methods.
View Article and Find Full Text PDFUtilization of Single-Pulse Transcranial-Evoked Potentials in Neurological and Psychiatric Clinical Practice: A Narrative Review.
Neurol Int
November 2024
National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA.
Article Synopsis
- Single-pulse TMS-evoked EEG potentials (TEPs) are valuable for understanding brain function in neurological and psychiatric disorders, reflecting a balance of cortical excitability.
- This study reviews 55 publications on TEPs, categorizing them into clinical applications such as healthy aging, Alzheimer's disease, major depressive disorder, and others.
- TEPs show promise for various applications, particularly in monitoring consciousness levels, predicting treatment responses, and diagnosing conditions, but more randomized controlled trials are needed for some uses.
Clinical and Radiological Parameters Affecting the Yield of Routine Electroencephalography in Various Indications.
Ann Afr Med
October 2024
Department of Neurology, College of Medicine and Neurology, University of Alberta, Edmonton, Alberta, Canada.
Objectives: To highlight the significance of various clinical and radiological parameters in association with specific electroencephalographic (EEG) patterns in order to prioritize EEG referrals.
Method: This retrospective, cross-sectional study was conducted in the neurology department of King Fahad University Hospital, Alkhobar, and involved a review and analysis of EEG and medical records pertaining to 604 patients referred for routine EEG. The data were analyzed using SPSS version 22.
Depth versus surface: A critical review of subdural and depth electrodes in intracranial electroencephalographic studies.
Epilepsia
July 2024
Department of Neurology, University of Chicago, Chicago, Illinois, USA.
Article Synopsis
- Intracranial electroencephalographic (IEEG) recording using subdural electrodes (SDEs) and stereoelectroencephalography (SEEG) is essential for identifying the epileptogenic zone responsible for seizures.
- SDEs are better for mapping surface seizure activity while SEEG allows for deeper brain exploration, with SEEG being associated with fewer complications and better overall tolerance.
- The combination of both techniques may enhance the accuracy of seizure localization, and recent studies provide insights into when to use each method effectively in clinical practice.
Over- and underreporting of seizures: How big is the problem?
Epilepsia
May 2024
Department of Medicine, St. Vincent's Hospital Melbourne, University of Melbourne, Parkville, Victoria, Australia.
Objective: Clinical decisions on managing epilepsy patients rely on patient accuracy regarding seizure reporting. Studies have noted disparities between patient-reported seizures and electroencephalographic (EEG) findings during video-EEG monitoring periods, chiefly highlighting underreporting of seizures, a well-recognized phenomenon. However, seizure overreporting is a significant problem discussed within the literature, although not in such a large cohort.
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