seizures, epilepsy Flashcards
define epilepsy
2 unprovoked/unpredicted seizures w/ neuronal activity
how are seizures classified?
by onset and spread
Compare focal/partial and general seizures
focal– one hemisphere or lobe; may or may not lose consciousness
general–both hemispheres + lose consciousness
what are the two types of focal/partial seizures?
simple partial seizures
complex partial seizures
Differentiate between simple & complex partial seizures
simple partial remains conscious
complex partial is impaired consciousness
Shared characteristics of focal/partial seizures
strange sensations including visual hallucinations
rhythmic jerking movements
Jacksonian march– spreading to other muscles
could have todd’s paralysis
characteristics specific to complex partial seizures
behavioral arrest or staring < 3 mins where person is unaware/unresponsive
automatism–repetitive behavior
olfactory hallucinations
Secondarily generalized seizure
started out as partial seizures that became generalized
ie. it started out in one lobe and moved to the other
List the 6 Primarily generalized seizures
atonic
tonic
tonic-clonic
myoclonic
absence
atypical absence
what does a Tonic seizure look like?
muscles become STIFF/FLEXED and person falls BACKWARD
what does an Atonic seizure look like?
muscles become RELAXED and person falls FORWARD
what does Tonic-clonic look like?
muscle tenses up (tonic phase) then contracts & relax (convulse)
eyes stay open w/ loss of consciousness
what does myoclonic look like?
short muscle twitches
no loss of consciousness
how are absence seizures diagnosed?
EEG!
NO imaging
what do absence seizures look like?
person lose & regain consciousness– blank stare w/ pause
NO postictal phase
happens in kids a lot but they grow out of it
eg. they suddenly stop walking