Paeds · neurology-neurodisability-and-neuromuscular
Epilepsy syndromes by age
Also known as Age-related epilepsy syndromes · ILAE 2022 epilepsy syndromes · Paediatric electroclinical syndromes · Self-limited and developmental epileptic encephalopathies · Idiopathic generalised epilepsies
Fellowship guide to the paediatric epilepsy syndromes organised along the developmental timeline, built on the ILAE 2022 Task Force nosology. The page teaches how a syndrome — the cluster of seizure type, EEG signature, age of onset and developmental context — points to a cause, a prognosis and a single best treatment. It walks the neonatal channelopathies through infantile spasms and Dravet syndrome to the self-limited focal epilepsies, childhood and juvenile absence epilepsies, Lennox-Gastaut syndrome and juvenile myoclonic epilepsy, and stresses syndrome-directed antiseizure medicine selection and the drugs that worsen specific syndromes.
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Red flags
- A developmental plateau or regression in an infant with new-onset epilepsy — think infantile spasms (West syndrome) or a developmental and epileptic encephalopathy; these need urgent EEG and early treatment, not watchful waiting
- Prolonged febrile hemiclonic seizures in the first year of life, especially with hemiparesis afterwards — this is the classic first presentation of Dravet syndrome; an SCN1A test and avoidance of sodium-channel blockers change the outcome
- A wrong first antiseizure medicine that worsens the syndrome — carbamazepine, phenytoin or oxcarbazepine aggravate absence, myoclonic and Dravet epilepsies; recognising the syndrome before prescribing prevents harm
- A child whose absences, drop attacks or atonic seizures are refractory with developmental slowing — think Lennox-Gastaut syndrome, which needs broad-spectrum cover and a syndrome-specific drug plan, not escalation of a narrow-spectrum agent
Life stages
Care settings
Clinical exam formats
Board mappings
- General Paediatrics and Neurology
- Seizures and epilepsies
- Recognition and initial management of common childhood epilepsy syndromes
- Current 2026 PREP curriculum — Learning goal 7: Neurology and neurodisability
- Renewed curriculum for first-year trainees from 2027 — Learning goal 5: Chronic and complex care
- Paediatric neurology competencies: epilepsy syndromes and their age-dependent presentation
- Clinical Applications
- Neurology: epilepsy classification and syndrome recognition
- Long Cases
- Short Cases
- Neurology and development scenarios
- 4. Professional skills and knowledge: Patient management
- 11. Brain, neurological function and neurodisability
- Paediatric neurology: epilepsy syndromes by age
- Foundation of Practice (FOP)
- Applied Knowledge in Practice (AKP)
- Neurology: childhood epilepsy syndromes and EEG
- Clinical
- History and management planning
- Neurology short cases and video analysis
- General Pediatrics Content Outline — Domain 12: Neurology
- General Pediatrics Content Outline — Domain 15: Chronic and disabling conditions
- General Pediatrics EPA: Manage a child with new-onset seizures
- Patient Care 1: History and Physical Examination
- Patient Care 4: Clinical Reasoning
- Medical Knowledge 1: Clinical Knowledge — neurology
- Medical Knowledge 10: Manage chronic epilepsy
- Medical Expert
- Communicator
- Collaborator
- Pediatrics: Core EPA — Investigate and manage new-onset and chronic epilepsy
Overview & Definition
Picture two children with "seizures." One is a previously well seven-year-old who has a few nocturnal facial twitching episodes and EEG centrotemporal spikes; the other is a six-month-old whose development has stalled and who has brief flexion spasms in clusters on a chaotic hypsarrhythmic EEG. Both have epilepsy, but the word means very different things for each. The syndrome label — self-limited epilepsy with centrotemporal spikes in the first, West syndrome in the second — is what tells you the cause, the prognosis and the drug. That is why paediatric epilepsy is taught and examined as syndromes, not as undifferentiated "fits." [1]
The 2017 ILAE operational framework separates three levels of thought. First, you classify the seizure type — focal onset (with awareness preserved or impaired), generalised onset (motor or non-motor), or unknown onset. Second, you classify the epilepsy type along the same focal, generalised or combined axis. Third, where the pattern fits, you assign an epilepsy syndrome, which adds age of onset, EEG features, comorbidities and expected course. The aetiology — structural, genetic, infectious, metabolic, immune or unknown — sits alongside at every level, because a syndrome and its cause are independent questions. [6] [7]
Seizure type
Epilepsy syndrome
Aetiology
The most useful clinical distinction the 2022 nosology makes is between a self-limited syndrome and a developmental and epileptic encephalopathy (DEE). The word "benign" has been retired because it underplays the real cognitive and behavioural morbidity that even the "good" syndromes can carry; "self-limited" means the epilepsy is expected to remit, but it does not guarantee a perfect outcome. A DEE is the opposite end: here the frequent epileptic activity itself drives developmental regression or stagnation, so that controlling the electroencephalographic burden is part of protecting the brain, not just stopping the visible seizures. Holding that distinction in your head reframes the whole age timeline. [1] [8]
References10ShowHide
- [1]Wirrell EC, Nabbout R, Scheffer IE, et al. Methodology for classification and definition of epilepsy syndromes with list of syndromes: Report of the ILAE Task Force on Nosology and Definitions. Epilepsia, 2022.PMID 35503715
- [2]Zuberi SM, Wirrell E, Yozawitz E, et al. ILAE classification and definition of epilepsy syndromes with onset in neonates and infants: Position statement by the ILAE Task Force on Nosology and Definitions. Epilepsia, 2022.PMID 35503712
- [3]Specchio N, Wirrell EC, Scheffer IE, et al. International League Against Epilepsy classification and definition of epilepsy syndromes with onset in childhood: Position paper by the ILAE Task Force on Nosology and Definitions. Epilepsia, 2022.PMID 35503717
- [4]Hirsch E, French J, Scheffer IE, et al. ILAE definition of the Idiopathic Generalized Epilepsy Syndromes: Position statement by the ILAE Task Force on Nosology and Definitions. Epilepsia, 2022.PMID 35503716
- [5]Riney K, Bogacz A, Somerville E, et al. International League Against Epilepsy classification and definition of epilepsy syndromes with onset at a variable age: position statement by the ILAE Task Force on Nosology and Definitions. Epilepsia, 2022.PMID 35503725
- [6]Fisher RS, Cross JH, French JA, et al. Operational classification of seizure types by the International League Against Epilepsy: Position Paper of the ILAE Commission for Classification and Terminology. Epilepsia, 2017.PMID 28276060
- [7]Scheffer IE, Berkovic S, Capovilla G, et al. ILAE classification of the epilepsies: Position paper of the ILAE Commission for Classification and Terminology. Epilepsia, 2017.PMID 28276062
- [8]Berg AT, Berkovic SF, Brodie MJ, et al. Revised terminology and concepts for organization of seizures and epilepsies: report of the ILAE Commission on Classification and Terminology, 2005-2009. Epilepsia, 2010.PMID 20196795
- [9]Hancock EC, Osborne JP, Edwards SW. Treatment of infantile spasms. Cochrane Database Syst Rev, 2013.PMID 23740534
- [10]Cross JH, Caraballo RH, Nabbout R, Vigevano F, Guerrini R, Lagae L. Dravet syndrome: Treatment options and management of prolonged seizures. Epilepsia, 2019.PMID 31904119