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Flashcards in Seizures Deck (7)
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What is a seizure?

physical findings or changes in behavior that occur after an episode of abnormal electrical activity in the brain


What is the International League Against Epilepsy's classification for seizures?

general (those that originate within and rapidly engage bilaterally distributed networks - not necessarily the entire cortex), focal (originate in networks limited to one hemisphere), unknown (unclear what is the onset)


What is the classification for causes of seizures?

genetic (epilepsy is the direct result of a known or presumed genetic defect), structural/metabolic (congenital or acquired), unknown


What is an electroclinical syndrome?

a complex of clinical features, signs, and symptoms that together define a distinctive, recognizable clinical disorder (e.g. benign infantile epilepsy)


What are distinctive constellations in the setting of epilepsy?

less precise than electroclinical syndroms, but distinctive groups based on specific lesions or underlying causes (e.g., Rasmussen encephalitis)


What are focal seizures?

involve only a portion of the brain, may have impairment of consciousness or not, may involve visible manifestations (jerking of a limb, automatisms) or experiences perceived on by the patient (unpleasant odor, aura)


What are generalized seizures?

involve large parts of both hemispheres of the brain, nearly always impaired consciousness (e.g., tonic-clonic, absence, myoclonic)