Electroencephalography: electrode arrays in dogs

Electroencephalography (EEG) is the gold standard for confirming epileptic seizures in both human and veterinary patients. Despite idiopathic epilepsy being one of the most common neurological conditions in dogs, our understanding of it in veterinary medicine lags that in human medicine. The relativ...

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Main Authors: Stephen Everest, Luis Gaitero, Robert Dony, Alexander Zur Linden, Miguel A. Cortez, Fiona M. K. James
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-11-01
Series:Frontiers in Veterinary Science
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Online Access:https://www.frontiersin.org/articles/10.3389/fvets.2024.1402546/full
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author Stephen Everest
Luis Gaitero
Robert Dony
Alexander Zur Linden
Miguel A. Cortez
Fiona M. K. James
author_facet Stephen Everest
Luis Gaitero
Robert Dony
Alexander Zur Linden
Miguel A. Cortez
Fiona M. K. James
author_sort Stephen Everest
collection DOAJ
description Electroencephalography (EEG) is the gold standard for confirming epileptic seizures in both human and veterinary patients. Despite idiopathic epilepsy being one of the most common neurological conditions in dogs, our understanding of it in veterinary medicine lags that in human medicine. The relative underuse of EEG in dogs with seizures has potential causes including practical issues, financial concerns, lack of training/equipment, and questions of clinical value. This technological underuse may lead to, or result from, major gaps in our understanding of EEG in veterinary patients. This underutilization of EEG is of significant clinical relevance because the diagnosis of specific epilepsy syndromes in humans guides the treatment, namely pharmacological, dietary, or surgical. These epilepsy syndromes are diagnosed based on several factors, one of which is the characteristic electrical brain activity on EEG. The aim of this narrative literature review was to highlight the study of cortical brain activity to improve our understanding of EEG in veterinary medicine. Specifically, the utility of EEG with focus on the existing proposed electrode arrays and their current supporting evidence. A recent survey study confirmed that a variety of canine EEG protocols are concurrently in use, including diverse electrode arrays. By comparison, in humans there is a standardized 10–20 electrode array, with average localization error of 13–17 mm depending on the number of placed electrodes on the scalp. We offer a review of the factors that would contribute to the ideal canine EEG electrode array highlighting areas for improvement and future validation. This proposed level of understanding will facilitate the identification of cortical seizure foci with a known degree of error, paving the way for non-pharmaceutical interventions like epilepsy surgeries.
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spelling doaj-art-54dbc15efe8249a7ab9e080b70a8caf22024-11-14T09:43:51ZengFrontiers Media S.A.Frontiers in Veterinary Science2297-17692024-11-011110.3389/fvets.2024.14025461402546Electroencephalography: electrode arrays in dogsStephen Everest0Luis Gaitero1Robert Dony2Alexander Zur Linden3Miguel A. Cortez4Fiona M. K. James5Department of Clinical Studies, Ontario Veterinary College Health Sciences Centre, University of Guelph, Guelph, ON, CanadaDepartment of Clinical Studies, Ontario Veterinary College Health Sciences Centre, University of Guelph, Guelph, ON, CanadaSchool of Engineering, College of Engineering and Physical Sciences, University of Guelph, Guelph, ON, CanadaDepartment of Clinical Studies, Ontario Veterinary College Health Sciences Centre, University of Guelph, Guelph, ON, CanadaDivision of Neurology, Department of Paediatrics, Temerty Faculty of Medicine, University of Toronto; Neurosciences & Mental Health Program, Peter Gilgan Center Research Learning, SickKids Research Institute, Toronto, ON, CanadaDepartment of Clinical Studies, Ontario Veterinary College Health Sciences Centre, University of Guelph, Guelph, ON, CanadaElectroencephalography (EEG) is the gold standard for confirming epileptic seizures in both human and veterinary patients. Despite idiopathic epilepsy being one of the most common neurological conditions in dogs, our understanding of it in veterinary medicine lags that in human medicine. The relative underuse of EEG in dogs with seizures has potential causes including practical issues, financial concerns, lack of training/equipment, and questions of clinical value. This technological underuse may lead to, or result from, major gaps in our understanding of EEG in veterinary patients. This underutilization of EEG is of significant clinical relevance because the diagnosis of specific epilepsy syndromes in humans guides the treatment, namely pharmacological, dietary, or surgical. These epilepsy syndromes are diagnosed based on several factors, one of which is the characteristic electrical brain activity on EEG. The aim of this narrative literature review was to highlight the study of cortical brain activity to improve our understanding of EEG in veterinary medicine. Specifically, the utility of EEG with focus on the existing proposed electrode arrays and their current supporting evidence. A recent survey study confirmed that a variety of canine EEG protocols are concurrently in use, including diverse electrode arrays. By comparison, in humans there is a standardized 10–20 electrode array, with average localization error of 13–17 mm depending on the number of placed electrodes on the scalp. We offer a review of the factors that would contribute to the ideal canine EEG electrode array highlighting areas for improvement and future validation. This proposed level of understanding will facilitate the identification of cortical seizure foci with a known degree of error, paving the way for non-pharmaceutical interventions like epilepsy surgeries.https://www.frontiersin.org/articles/10.3389/fvets.2024.1402546/fulldogselectroencephalographyepilepsyseizuresstandardized electrode placement
spellingShingle Stephen Everest
Luis Gaitero
Robert Dony
Alexander Zur Linden
Miguel A. Cortez
Fiona M. K. James
Electroencephalography: electrode arrays in dogs
Frontiers in Veterinary Science
dogs
electroencephalography
epilepsy
seizures
standardized electrode placement
title Electroencephalography: electrode arrays in dogs
title_full Electroencephalography: electrode arrays in dogs
title_fullStr Electroencephalography: electrode arrays in dogs
title_full_unstemmed Electroencephalography: electrode arrays in dogs
title_short Electroencephalography: electrode arrays in dogs
title_sort electroencephalography electrode arrays in dogs
topic dogs
electroencephalography
epilepsy
seizures
standardized electrode placement
url https://www.frontiersin.org/articles/10.3389/fvets.2024.1402546/full
work_keys_str_mv AT stepheneverest electroencephalographyelectrodearraysindogs
AT luisgaitero electroencephalographyelectrodearraysindogs
AT robertdony electroencephalographyelectrodearraysindogs
AT alexanderzurlinden electroencephalographyelectrodearraysindogs
AT miguelacortez electroencephalographyelectrodearraysindogs
AT fionamkjames electroencephalographyelectrodearraysindogs