CLASSIFICATION OF EPILEPSY: A COMPREHENSIVE NARRATIVE REVIEW

Dr Saloni Jain; Mujeeb Shah; Shuaib Abbas; Yawar Abbas

Authors

Dr Saloni Jain Assistant Teacher, Samarkand State Medical University, Uzbekistan
Mujeeb Shah Medical Student, Samarkand State Medical University, Uzbekistan
Shuaib Abbas Medical Student, Samarkand State Medical University, Uzbekistan
Yawar Abbas Medical Student, Samarkand State Medical University, Uzbekistan

Keywords:

Epilepsy classification, ILAE 2017, seizure types, focal seizures, generalized seizures

Abstract

Epilepsy represents one of the most prevalent neurological disorders globally, affecting approximately 50 million people worldwide. The classification of epilepsy and seizure types has undergone significant transformation over the past century, evolving from simple descriptive categories to sophisticated, multidimensional frameworks based on neurophysiological mechanisms. This narrative review examines the current International League Against Epilepsy (ILAE) 2017 classification system, its historical evolution, and the newly updated 2025 revisions. We explore the three-tiered diagnostic approach encompassing seizure types, epilepsy types, and epilepsy syndromes, while integrating etiological considerations throughout each level. Understanding these classification systems is essential for accurate diagnosis, appropriate treatment selection, and prognostic assessment in clinical practice.

References

Centers for Disease Control and Prevention. Types of Seizures. CDC Epilepsy Program. 2024. Available at: https://www.cdc.gov/epilepsy/about/types-of-seizures.html

StatPearls. Focal Impaired Awareness Seizure. National Center for Biotechnology Information. 2024. Available at: https://www.ncbi.nlm.nih.gov/books/NBK519030/

Fisher RS, Cross JH, D'Souza C, et al. Instruction manual for the ILAE 2017 operational classification of seizure types. Epilepsia. 2017;58(4):531-542. doi:10.1111/epi.13671

Fisher RS. The New Classification of Seizures by the International League Against Epilepsy 2017. Curr Neurol Neurosci Rep. 2017;17(6):48. doi:10.1007/s11910-017-0758-6

CURE Epilepsy. Epilepsy Syndromes. 2026. Available at: https://www.cureepilepsy.org/understanding-epilepsy/diagnosing-epilepsy/syndromes/

International League Against Epilepsy. Updated classification of epileptic seizures (2025). ILAE Guidelines. 2025. Available at: https://www.ilae.org/updated-classification-epileptic-seizures-2025

Epilepsy Foundation. Focal Impaired Awareness Seizures. 2026. Available at: https://www.epilepsy.com/what-is-epilepsy/seizure-types/focal-impaired-consciousness-seizures

KidsHealth. Focal Impaired Awareness Seizures. Nemours Foundation. Available at: https://kidshealth.org/en/parents/focal-impaired-aware-seizures.html