T3 Epilepsy Flashcards
definition of seizure
occurrence of at least 2 unprovoked seizures with or with convulsions separated by at least 24 hours. convulsion is violent / involuntary contractions of voluntary muscle.
general pathophysiology of epilepsy
- Influx of sodium
- influx of calcium
- release of glutamate
- activation of excitatory (glutamate) receptor (NMDA and non-NMDA - AMPA & KA) cause neuronal firing
- reduction of gaba inhibitor
action of glutamate if bind to NMDA or non NMDA receptor
if bind to NMDA, longer action but slow excitatory post synaptic potential
if bind to non NMDA, FAST excitatory
______ and ______ must bind to the NMDA receptor in order for it to open
glutamate and glycine
seizure happens due to __________ of excitatory and inhibitory transmitter
imbalance
causes of seizures in newborn
brain malformation
maternal drug use
lack of brain oxygen during birth
intercranial hemorrhage
inborn error in metablokism
low levels of glucose and cations
cause of seizure in infant and young child
febrile seizure
brain tumor (rare)
infection
cause of seizure in adult or child
genetic
head trauma
congenital condition (down syndrome, angelman’s syndrome, tuberous sclerosis & neurofibromatosis)
progressive brain disease (rare)
classification of seizure
partial seizure
generalized seizure
status epilepticus
unclassified seizure
other name of partial seizure
focal
class of partial seizure
3 class:
simple
complex
secondary generalized
difference between partial and generalized seizure
partial happens w local onset, genralized occurs without local onset happens bilaterally symmetrical
difference between simple and complex partial seizure
simple still concius, complex not concious
type of seizure under generalized siezure (7)
absence
myoclonic
clonic
tonic
tonic-clonic
atonic
infantile spasm
simple partial sizure comes with 3 type of symptoms
motor symptoms
sensory symptoms
psychic symptoms