Prolonged febrile convulsion | SE during a febrile (temperature above 38°C) illness in a previously neurologically normal child aged between 6 months and five years, and in the absence of defined central nervous system (CNS) infection. |
Acute symptomatic | SE in a previously neurologically normal child, within a week of an identified acute neurological insult including head trauma, CNS infection, encephalopathy, cerebrovascular disease, and metabolic or toxic derangements. |
Remote symptomatic | SE in the absence of an identified acute insult but with a history of a CNS insult more than 1 week before. |
Acute on remote symptomatic | SE that occurred within a week of an acute neurological insult or febrile illness and occurred in a child with a history of previous neurological abnormality. This category included children with cerebral palsy with a febrile illness not of CNS origin, and children with obstructed ventriculo-peritoneal shunts for posthaemorrhagic hydrocephalus. |
Idiopathic epilepsy related | SE that is not symptomatic (see above) and occurred in subjects with a prior diagnosis of idiopathic epilepsy or when the episode of SE is the second unprovoked seizure that has led to a diagnosis of idiopathic epilepsy. |
Cryptogenic epilepsy related | SE that is not symptomatic (see above) and occurred in subjects with a prior diagnosis of cryptogenic epilepsy or when the episode of SE is the second unprovoked seizure that has led to a diagnosis of cryptogenic epilepsy. |
Unclassified | SE that could not be classified into any other group. |