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Epilepsy syndrome that is characterised by generalised seizures with no apparent cause From Wikipedia, the free encyclopedia
Generalized epilepsy is a form of epilepsy characterised by generalised seizures with no apparent cause.[1] Generalized seizures, as opposed to focal seizures, are a type of seizure that impairs consciousness and distorts the electrical activity of the whole or a larger portion of the brain (which can be seen, for example, on electroencephalography, EEG).[2]
| Generalized epilepsy | |
|---|---|
| Other names | Primary generalized epilepsy, idiopathic epilepsy |
| |
| Generalized 3 Hz spike-and-wave discharges on an electroencephalogram | |
| Specialty | Neurology |
Generalized epilepsy is primary because the epilepsy is the originally diagnosed condition itself, as opposed to secondary epilepsy, which occurs as a symptom of a diagnosed condition.[3]
Generalized seizures can be either absence seizures, myoclonic seizures, clonic seizures, tonic-clonic seizures or atonic seizures.
Generalized seizures occur in various seizure syndromes, including myoclonic epilepsy, familial neonatal convulsions, childhood absence epilepsy, absence epilepsy, infantile spasms (West's syndrome), Juvenile Myoclonic Epilepsy, Lennox-Gastaut syndrome and Generalized epilepsy with occipital semiology.[4]
Most generalized epilepsy starts during childhood. While some patients outgrow their epilepsy during adolescence and no longer need medication, in others, the condition remains for life, thereby requiring lifelong medication and monitoring.
Seven anti-epileptic drugs are approved for use in cases of suspected primary generalized epilepsy:
Valproate, a relatively old drug, is often considered the first-line treatment. It is highly effective, but its association with fetal malformations when taken in pregnancy limits its use in young women.[6]
All anti-epileptic drugs (including the above) can be used in cases of partial seizures.
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