Updated classification of epileptic seizures: Position paper of the International League Against Epilepsy.
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| Title: | Updated classification of epileptic seizures: Position paper of the International League Against Epilepsy. |
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| Authors: | Beniczky, Sándor (AUTHOR), Trinka, Eugen (AUTHOR), Wirrell, Elaine (AUTHOR), Abdulla, Fatema (AUTHOR), Al Baradie, Raidah (AUTHOR), Alonso Vanegas, Mario (AUTHOR), Auvin, Stéphane (AUTHOR), Singh, Mamta Bhushan (AUTHOR), Blumenfeld, Hal (AUTHOR), Bogacz Fressola, Alicia (AUTHOR), Caraballo, Roberto (AUTHOR), Carreno, Mar (AUTHOR), Cendes, Fernando (AUTHOR), Charway, Augustina (AUTHOR), Cook, Mark (AUTHOR), Craiu, Dana (AUTHOR), Ezeala‐Adikaibe, Birinus (AUTHOR), Frauscher, Birgit (AUTHOR), French, Jacqueline (AUTHOR), Gule, M. V. (AUTHOR) |
| Source: | Epilepsia (Series 4). Jun2025, Vol. 66 Issue 6, p1804-1823. 20p. |
| Subjects: | Seizures (Medicine), Classification, Epilepsy, Clinical medicine, People with epilepsy |
| Abstract: | The International League Against Epilepsy (ILAE) has updated the operational classification of epileptic seizures, building upon the framework established in 2017. This revision, informed by the implementation experience, involved a working group appointed by the ILAE Executive Committee. Comprising 37 members from all ILAE regions, the group utilized a modified Delphi process, requiring a consensus threshold of more than two thirds for any proposal. Following public comments, the Executive Committee appointed seven additional experts to the revision task force to address and incorporate the issues raised, as appropriate. The updated classification maintains four main seizure classes: Focal, Generalized, Unknown (whether focal or generalized), and Unclassified. Taxonomic rules distinguish classifiers, which are considered to reflect biological classes and directly impact clinical management, from descriptors, which indicate other important seizure characteristics. Focal seizures and those of unknown origin are further classified by the patient's state of consciousness (impaired or preserved) during the seizure, defined operationally through clinical assessment of awareness and responsiveness. If the state of consciousness is undetermined, the seizure is classified under the parent term, that is, the main seizure class (focal seizure or seizure of unknown origin). Generalized seizures are grouped into absence seizures, generalized tonic–clonic seizures, and other generalized seizures, now including recognition of negative myoclonus as a seizure type. Seizures are described in the basic version as with or without observable manifestations, whereas an expanded version utilizes the chronological sequence of seizure semiology. This updated classification comprises four main classes and 21 seizure types. Special emphasis was placed on ensuring translatability into languages beyond English. Its aim is to establish a common language for all health care professionals involved in epilepsy care, from resource‐limited areas to highly specialized centers, and to provide accessible terms for patients and caregivers. [ABSTRACT FROM AUTHOR] |
| Copyright of Epilepsia (Series 4) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Psychology and Behavioral Sciences Collection |
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