Exact(8)
Loss of cerebral autoregulation and neuronal damage begin after 30 minutes of continuous seizure activity.
Status epilepticus, a continuous seizure or multiple seizures in rapid succession, is especially strongly correlated with the development of PTE; status seizures occur in 6% of all TBIs but are associated with PTE 42% of the time, and quickly halting a status seizure reduces chances of PTE development.
Established SE designates continuous seizure activity with convulsions or intermittent seizures without regaining consciousness between the seizures.
One teenage patient died only 2 years after presentation, ending with 5 months of continuous seizure activity.
SE is a continuous seizure activity involving severe and prolonged hypoxia that induces sustained neuronal damage, astroglial death and reactive astrogliosis.
A status epilepticus was defined as a state of continuous seizure activity lasting for 30 min or longer or repeated seizures with failure to return to normal.
Similar(52)
Status epilepticus (SE), continuous seizures lasting more than 30 minutes or serial seizures over 30 minutes without return to normal consciousness between seizures, has a mortality of up to 30% and high morbidity.
Among various models of prolonged seizures, those based on use of the cholinergic agonist pilocarpine or glutamate agonist kainic acid (KA) are well characterized; both induce epileptiform events that can develop into continuous seizures (status epilepticus; SE), leading to neuronal cell damage, particularly within the hippocampus [1], [2], [3].
In fosfamide encephalopathy obtundation of consciousness and myoclonus reflect a continuous seizure-like activity in the electroencephalogram (EEG).
In agreement with this hypothesis, reducing external Ca2+ from 2 to 1 mM resulted in a 100% appearance of recurrent or continuous seizure-like activity (Isaev et al., 2012).
Only animals with nearly continuous seizures for more than half an hour were included in that study.
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