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types of seizures
Terms in this set (15)
involve both sides of the brain and are characterized by bilateral synchronous epileptic discharges in the brain from the onset of the seizure
formerly grand mal, characterized by loss of consciousness and falling to ground if upright, followed by stiffening of body (tonic phase) for 10-20 seconds and subsequent jerking of extremities (clonic phase) for another 30-40 seconds. Often accompanied by cyanosis, excessive salivation, tongue or cheek biting and incontinence
What is a simple partial seizure?
no impairment of consciousness, but accompanied by motor signs, sensory symptoms, autonomic symptoms, or psychic symptoms
What is an absence seizure?
petit mal, usually occurs only in children and rarely continues beyond adolescence, brief staring spell that lasts only a few seconds, may occur up to 100x/day, often precipitated by hyperventilation and flashing lights
What is atypical absence seizure?
staring spell accompanied by other signs and sypmtoms, including brief warnings, peculiar bx during seizure, or confusion after the seizure. EEG includes spike and wave patterns
What is a myoclonic seizure?
a sudden, excessive jerk of the body or extremities, may be forceful enough to hurl person to the ground, very brief and can occur in clusters
What is an atonic seizure?
"drop attack" seizure that involves either a tonic episode or a paroxysmal loss of muscle tone and begins suddenly with the person falling to the ground. Consciousness usually returns by the time person hits the ground. Pts at increased risk for falls and may wear a helmet
What is a tonic seizure?
sudden onset of maintained, increased muscle tone in the extensor muscle; patient often fall
What is a clonic seizure?
begins with a loss of consciousness and sudden loss of muscle tone, followed by limb jerking that may or may not be symmetric
What is a partial/focal seizure?
caused by focal irritations, manifest with unilateral signs that happen because of localized brain involvement, beginning in a specific region of the brain
What is a simple partial seizure?
seizure with simple motor, sensory, or autonomic phenomenon that do not involve a loss of consciousness and rarely last longer than a minute
What is a complex partial seizure?
seizures that involve behavioral, emotional, affective and cognitive functions, usually focus is in temporal lobe, usually last longer than a minute and followed by period of post ictal confusion which may just be a clouding of consciousness or confused state without any motor or sensory impairment "temporal lobe absence"
How are simple partial seizures and complex partial seizures distinct?
simple partial seizures do not involve a loss of consciousness, complex partial seizures do involve some alteration in consciousness
What is an automatism?
a repetitive movement that may not be appropriate
What is the most common complex partial seizure?
lip smacking and autonomisms, such as counting change, picking items from a grocery shelf, picking at clothing, fumbling with real or imagined objects, walking away
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