Future Classifications
In 1997, the ILAE began work on revising the classification of seizures, epilepsies and epileptic syndromes. This revision remains in gestation and has not superseded the 1981 classification.
Proposed changes to terminology include:
- Replace partial with the older term focal to describe seizures that originate in one part of the brain (though not necessarily a small or well defined area). The word partial was regarded as ambiguous.
- Drop the terms simple partial and complex partial - grouping based on the effect to consciousness is no longer regarded as useful.
- Replace cryptogenic with probably symptomatic.
The hierarchy presented has the structure:
- Self limiting seizure types
- Generalized seizures
- Tonic-clonic seizures (includes variations beginning with a clonic or myoclonic phase)
- Clonic seizures (with and without tonic features)
- Typical absence seizures
- Atypical absence seizures
- Myoclonic absence seizures
- Tonic seizures
- Spasms
- Myoclonic seizures
- Massive bilateral myoclonus
- Eyelid myoclonia (with and without absences)
- Myoclonic atonic seizures
- Negative myoclonus
- Atonic seizures
- Reflex seizures in generalized epilepsy syndromes
- Seizures of the posterior neocortex
- Neocortical temporal lobe seizures
- Focal seizures
- Focal sensory seizures
- Focal motor seizures
- Gelastic seizures
- Hemiclonic seizures
- Secondarily generalized seizures
- Reflex seizures in focal epilepsy syndromes
- Generalized seizures
- Continuous seizure types
- Generalized status epilepticus
- Generalized tonic-clonic status epilepticus
- Clonic status epilepticus
- Absence status epilepticus
- Tonic status epilepticus
- Myoclonic status epilepticus
- Focal status epilepticus
- Epilepsia partialis continua of Kojevnikov
- Aura continua
- Limbic status epilepticus (psychomotor status)
- Hemiconvulsive status with hemiparesis
- Generalized status epilepticus
Read more about this topic: Seizure Types
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