Seizures. Flashcards
Epilepsy:
neurological condition, which affects the nervous system.
Seizure:
sudden episode of transient neurologic symptoms such as involuntary muscle movements, sensory disturbances and altered consciousness. A seizure is caused by abnormal electrical activity in the brain, which is often diagnosed on an electroencephalogram (EEG); over firing of neurons.
Seizures are caused by:
traumatic brain injuries, infection, stroke, degenerative changes in the brain, tumors; unknown cause.
Partial seizures:
simple partial, complex partial, and secondarily generalized.
Generalized seizures:
absence, atypical absence, atonic, tonic, clonic, tonic-clonic, myoclonic, and febrile.
Status epilepticus:
15 minutes of continuous seizures; medical emergency.
Generalized seizures…
go across both sides of the brain.
Auras may be experienced with…
simple or complex partial; sometimes tonic-clonic.
Simple partial:
<30 seconds; occur at any age; most common type; fully aware; normally no post-ictal phase.
Complex partial:
30 seconds to several minutes; may feel tired or confused for 15 minutes but won’t return to normal for several hours; experience automatism; aura is common; occurs in LG.
Secondarily generalized:
starts as other partial seizures in a single portion of the brain then spreads to others becoming a generalized tonic-clonic; grand mal seizure; will shriek when diaphragm tightens.
Absence/petit mal:
simple: blank stare 10-20 seconds.
complex: eye blinks, licking lips, rubbing fingers; 10-20 seconds.
no aura.
Atypical absence:
blank stare, somewhat responsive; eye-blinking and lip movements may occur; hard to distinguish with cognitive impairment; common in LG.
Atonic:
<15 seconds; will lose muscle tone, suddenly drop things; will remain conscious; common with LG.
Tonic:
<20 seconds; muscle tone increased, body stiffens; will occur during sleep; if person is standing, they will fall; common with LG.