Neuro Seizures and Headaches Flashcards
Partial (focal) seizures
Affect 1 area of the brain.
Most commonly originate in medial temporal lobe.
Often preceded by seizure aura; can secondarily generalize.
Simple partial
consciousness intact)— motor, sensory, autonomic, psychic
Complex partial
impaired consciousness
Epilepsy
a disorder of recurrent seizures (febrile seizures are not epilepsy).`
Status epilepticus
continuous seizure for > 30 min or recurrent seizures without regaining consciousness between seizures for > 30 min.
Generalized seizures
involves both hemispsheres
Partial (focal) seizures where does it originate from.
medial temporal lobes
petit mal/absense
petit mal)—3 Hz, no postictal
confusion, blank stare
Myoclonic
quick, repetitive jerks
grand mal
Tonic-clonic (grand mal)—alternating
stiffening and movement loss of bowel and bladder functions
Tonic
—stiffening
atonic
drop” seizures (falls to floor);
commonly mistaken for fainting losses muscle tone and drops to the floor with loss of consciousness
Cluster headache
LOCALIZATION
DURATION
DESCRIPTION
Unilateral; 15 min–3 hr; repetitive
Repetitive brief headaches. Excruciating periorbital pain with lacrimation and rhinorrhea. May induce Horner syndrome.
More common in males
Tension
LOCALIZATION
DURATION
DESCRIPTION
Bilateral
> 30 min (typically 4–6 hr); constant
Steady pain. No photophobia or phonophobia. No aura.
Migraine
LOCALIZATION
DURATION
DESCRIPTION
Unilateral
4–72 hr
Pulsating pain with
nausea, photophobia, or phonophobia. May have “aura.” Due to irritation of CN V, meninges, or blood vessels (release of substance P, CGRP, vasoactive peptides).