A first seizure in a child is one of the most frightening things a parent can witness. The combination of loss of consciousness, abnormal movements, and the unresponsive period that follows can look, for terrible seconds, as though the child might not come back. Most single seizures in children are not epilepsy and do not recur. When seizures happen repeatedly without a clear trigger like fever or illness, the diagnosis is epilepsy — and what follows is a process of determining which type, because epilepsy is not one condition but dozens of distinct syndromes with different causes, behaviours, treatments, and outcomes.
The practical news is encouraging: 60–70% of children with epilepsy become seizure-free with the first or second medication tried. For those who don't, newer antiseizure medications, dietary treatments, and surgical options have expanded considerably over the past two decades.
Healthbooq (healthbooq.com) covers childhood neurological conditions and health.
What Epilepsy Is
The International League Against Epilepsy (ILAE) defines epilepsy as: at least two unprovoked seizures occurring more than 24 hours apart; or one unprovoked seizure with a greater than 60% probability of further seizures based on an underlying brain condition. A single febrile seizure, a first unprovoked seizure in an otherwise healthy child without high-risk features, or a seizure during an acute illness does not meet these criteria.
Seizures are caused by abnormal synchronised electrical discharge in groups of neurons. Focal seizures originate in one part of the brain; generalised seizures involve both hemispheres from the outset. The clinical features — what the seizure looks like — depend entirely on which brain region is involved. A seizure involving the motor cortex produces jerking movements. One involving the occipital lobe may produce visual disturbance. One in the temporal lobe may produce automatisms — repeated purposeless movements like lip-smacking.
Common Childhood Epilepsy Syndromes
Childhood absence epilepsy typically begins between ages 4 and 10. The seizures are brief — 5 to 30 seconds — and consist of a sudden blank stare, often with fluttering eyelids, followed by immediate return to normal activity. The child is unaware of the episode. These seizures can occur dozens or even hundreds of times per day, and are often noticed first by teachers rather than parents. Ethosuximide is first-line treatment and is effective in around 70% of cases. Most children outgrow this form by adolescence.
Benign epilepsy with centrotemporal spikes (BECTS, also called Rolandic epilepsy) is the most common focal epilepsy of childhood, typically affecting children between 5 and 12. Seizures usually occur at night or in the early morning and involve face and mouth twitching, excessive drooling, and inability to speak while consciousness remains fully intact. Children often describe tingling in one side of their face. The EEG shows a characteristic spike pattern over the centrotemporal region. BECTS is almost invariably outgrown by mid-adolescence, and many children with infrequent nocturnal seizures choose not to take medication.
Juvenile myoclonic epilepsy (JME) begins in adolescence and is characterised by myoclonic jerks on waking — sudden, brief, involuntary muscle jerks that might spill a morning drink — along with generalised tonic-clonic seizures, and sometimes absence seizures. Sleep deprivation and alcohol are common triggers. JME responds well to sodium valproate but is typically lifelong; medication is usually continued indefinitely because seizure recurrence after stopping is common.
Dravet syndrome is a rare but severe epilepsy beginning in the first year of life, usually associated with mutations in the SCN1A gene. It is highly resistant to most antiseizure medications, causes significant developmental difficulties, and illustrates that epilepsy in childhood spans an enormous range of severity and prognosis.
Sodium Valproate: A Critical Safety Issue
Sodium valproate (brand name Epilim) is highly effective for generalised epilepsies including JME and remains one of the most effective antiseizure medications available. But it causes serious harm to developing babies when taken during pregnancy.
Fetal Valproate Syndrome includes neural tube defects (spina bifida), congenital malformations (heart, limb, cleft palate), and neurodevelopmental problems — autism spectrum disorder, intellectual disability, ADHD, and language disorders — affecting 30–40% of children exposed to valproate in utero. The risk is dose-dependent but present at all therapeutic doses.
MHRA guidance updated in 2023 states that sodium valproate must not be prescribed to girls or women of childbearing potential unless a Pregnancy Prevention Programme is in place: highly effective contraception plus an annual specialist review and a signed form confirming the risks are understood. For girls under 18 currently on valproate, a paediatric neurologist must review the decision at least annually.
Parents of girls prescribed valproate need to understand this risk clearly and begin planning with their daughter's epilepsy team before puberty arrives, not after.
Rescue Medication
Every child with epilepsy should have emergency rescue medication prescribed for use if a seizure lasts more than five minutes, or if three or more seizures occur within an hour without recovery between them. Seizures lasting more than five minutes are much less likely to stop spontaneously and carry higher risk of hypoxic brain injury.
The two main options are buccal midazolam (placed inside the cheek and gums) and rectal diazepam. Buccal midazolam is preferred for community use — it is easier to administer, less distressing, and equally effective.
Parents need written administration instructions. Schools also need these. Under the Children and Families Act 2014, schools in England have a legal duty to support the medical needs of pupils, and cannot refuse to administer prescribed rescue medication to staff who have received appropriate training.
Investigation
EEG (electroencephalogram) records electrical activity across the scalp and can show the characteristic patterns associated with different epilepsy syndromes. A normal EEG between seizures does not exclude epilepsy — many children with epilepsy have a normal interictal EEG. An abnormal EEG showing the right pattern for the child's clinical syndrome is diagnostically helpful; a normal one is inconclusive rather than reassuring.
MRI brain imaging looks for structural causes such as cortical malformations, hippocampal sclerosis, or tumours.
The most important diagnostic tool remains a detailed clinical history: what the child was doing, what happened at the start, how long the episode lasted, what the child looked like during and after, whether there was any warning before loss of consciousness. A video of the seizure taken on a phone and shown to the epilepsy team is invaluable — it frequently clarifies the diagnosis when history alone cannot.
Living Well with Epilepsy
With appropriate medication and sensible safety measures, most children with well-controlled epilepsy participate fully in school, sports, and childhood activities. Swimming is safe with adequate supervision; one-to-one supervision in water (not just lifeguards present) is the standard recommendation. Contact sports, cycling with a helmet, and most sporting activities are appropriate.
Epilepsy Action (epilepsy.org.uk) and Young Epilepsy (youngepilepsy.org.uk) provide detailed, practical guidance for families on everything from school communication to driving (for older teenagers) to managing seizures in specific settings.
Key Takeaways
Epilepsy is defined as a tendency to have unprovoked recurrent seizures, and affects approximately 1 in 200 children in the UK. There are many distinct epilepsy syndromes in childhood, and accurate classification determines treatment choice and prognosis. Common childhood syndromes include childhood absence epilepsy, benign epilepsy with centrotemporal spikes (BECTS), and juvenile myoclonic epilepsy. Sodium valproate is highly effective for many epilepsy types but carries a significant risk of serious foetal harm (Fetal Valproate Syndrome) and must not be used in girls and women of childbearing potential without a pregnancy prevention programme. All children with epilepsy should have emergency (rescue) medication prescribed for prolonged seizures. NICE guideline NG217 covers diagnosis and management.
