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Status epilepticus. Status Epilepticus. Traditionally, SE is defined as continuous or repetitive seizure activity persisting for at least 30 minutes without recovery of consciousness between attacks.
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Status Epilepticus • Traditionally, SE is defined as continuous or repetitive seizure activity persisting for at least 30 minutes without recovery of consciousness between attacks. • For all practical purposes, a patient should be considered to be in SE if a seizure persists for more than 5 minutes.
Epidemiology and Risk Factor • 100,000 to 150,000 patients per year in the United States are diagnosed with SE. • Approximately one half of the cases occur in young children, but the risk in adults older than 60 years of age is high. • The published incidence of SE usually under estimate NCSE.
Status epilepticus in pediatrics • Convulsive status epilepticus is the most common neurological emergency in childhood. • Prolonged febrile sizeurs is the most common cause. • Low morbidity and mortality . • The general principle of management is the same as adult.
Causes of first episode of convulsive status epilepticus in children
Management of SE • Rapidity of treatment is important. • Therapeutic intervention are most effective when started early and efficacy decrease significantly with increasing seizures duration. • Initial step include basic life support , focused history , initiating IV access , laboratory studies and benzodiazepine.
Refractory status epilepticus • CIV pentobarbital. Load: 5 mg/kg at up to 50 mg/min; repeat 5 mg/kg boluses until seizures stop. Initial CIV rate: 1 mg/kg/h. CIV dose range: 0.5 mg/kg/h to 10 mg/kg/h. • traditionally titrated to suppression burst on EEG but titrating to seizure suppression is reasonable as well.
EEG monitoring • EEG is mandatory for correct diagnosis and monitoring response to therapy. • Residual electrical seizure activity occur almost in 50% of patient who present with GCSE after cessation of motor activity. • Persistent NCSE can prevent recovery and add to morbidty.
Complication of SE • Hippocampal complex , amygedla , thalmus are vulnerable to SE which lead to permanent impairment in memory , affect and cognetion. • Mortality range between 3% to 20% , children have lower mortality rate than adult.
Future Directions • IV lorezpam is an excellent first line treatment but step after that are less clear and require and require randomized trials. • Neuroprotection is a new focus for research , some newer AEDs have neuroprotictive property that may prevent neuronal injury ,other neuroprotictive methods are hypothetmia , antioxidants and erythropoietin.
Future Directions • Development of reliable neuronal injury marker will be quite helpful in determining which patient require aggressive treatment and to predict outcome. • Neuron specific enolase which is elevated in patient with SE and correlate with duration and outcome is under investigation to be used as a marker.
Thank you Hind Alnajashi