content:epilepsy_classification

Classification of seizures

The ILAE Classification of the Epilepsies was updated in 2017[1][2] to reflect the advances made in recent years in the understanding of the epilepsies and their pathophysiologies since the classification was last ratified in 1989[3]. The current classification is based on the 1981 classification[4] which was extended in 2010[5]. It addresses the three levels of (1) identifying epilepsy (2) identifying the epilepsy type and (3) identifying the epilepsy syndrome where possible. In addition at each level it takes into account the aetiological diagnosis.

Generalised seizures

  • Tonic-Clonic (in any combination)
    • typical
    • atypical
    • absence with special features
    • Myoclonic
      • myoclonic
      • myoclonic atonic
      • myoclonic tonic
  • Clonic
  • Tonic
  • Atonic

Focal seizures
Unknown
Epileptic spasms


1 can start in infancy
2 previously astatic seizures

~~AUTHORS:off~~


1. a Scheffer IE, Berkovic S, Capovilla G, Connolly MB, French J, Guilhoto L, Hirsch E, Jain S, Mathern GW, Moshé SL, Nordli DR, Perucca E, Tomson T, Wiebe S, Zhang Y, Zuberi SM. ILAE classification of the epilepsies: Position paper of the ILAE Commission for Classification and Terminology. Epilepsia. 2017 Apr;58(4):512-521. doi: 10.1111/epi.13709. Epub 2017 Mar 8.
[PMID: 28276062] [PMCID: 5386840] [DOI: 10.1111/epi.13709]
2. a Fisher RS, Cross JH, French JA, Higurashi N, Hirsch E, Jansen FE, Lagae L, Moshé SL, Peltola J, Roulet Perez E, Scheffer IE, Zuberi SM. Operational classification of seizure types by the International League Against Epilepsy: Position Paper of the ILAE Commission for Classification and Terminology. Epilepsia. 2017 Apr;58(4):522-530. doi: 10.1111/epi.13670. Epub 2017 Mar 8.
[PMID: 28276060] [DOI: 10.1111/epi.13670]
3. a . Proposal for revised classification of epilepsies and epileptic syndromes. Commission on Classification and Terminology of the International League Against Epilepsy. Epilepsia. 1989 Jul-Aug;30(4):389-99. doi: 10.1111/j.1528-1157.1989.tb05316.x.
[PMID: 2502382] [DOI: 10.1111/j.1528-1157.1989.tb05316.x]
4. a . Proposal for revised clinical and electroencephalographic classification of epileptic seizures. From the Commission on Classification and Terminology of the International League Against Epilepsy. Epilepsia. 1981 Aug;22(4):489-501. doi: 10.1111/j.1528-1157.1981.tb06159.x.
[PMID: 6790275] [DOI: 10.1111/j.1528-1157.1981.tb06159.x]
5. a Berg AT, Berkovic SF, Brodie MJ, Buchhalter J, Cross JH, van Emde Boas W, Engel J, French J, Glauser TA, Mathern GW, Moshé SL, Nordli D, Plouin P, Scheffer IE. Revised terminology and concepts for organization of seizures and epilepsies: report of the ILAE Commission on Classification and Terminology, 2005-2009. Epilepsia. 2010 Apr;51(4):676-85. doi: 10.1111/j.1528-1167.2010.02522.x. Epub 2010 Feb 26.
[PMID: 20196795] [DOI: 10.1111/j.1528-1167.2010.02522.x]
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