Neurology Flashcards
what type of neurotransmitter is glutamate?
excitatory
seizure is caused by _____ (neurotransmitter) and/or dysfunction of __ &___ receptors
excessive glutamate
dysfunction of the NMDA, AMPA receptors
SV2A receptors
what type of neurotransmitter is GABA?
inhibitory
GABA is recycled and broken down by ___
transaminase
seizure is cause by disfunction of GABA receptor and causes decreased ___ influx
_____ deficiency disorder in pediatrics
Will not respond or open for GABA,
Decreased anions [Cl- ] influx,
Remains in a constant depolarization state and positive action potential firing in the axon…..
GABA – transaminase deficiency disorder in pediatrics [epilepsy, uncontrolled limb movement, hyperreflexia, hypotonia and hypersomnolence
what’s the definition of a seizure
A seizure is a sudden, transient disruption in brain electrical function caused by abnormal excessive discharges of cortical neurons, resulting in the occurrence of clinical signs and/or symptoms
Epilepsy (chronic seizure) definition
(1) at least two unprovoked (or reflex) seizures occurring more than 24 hours apart;
(2) one unprovoked (or reflex) seizure and a probability of further seizures similar to the general recurrence risk (at least 60%) after two unprovoked seizures, occurring over the next 10 years;
(3) diagnosis of an epilepsy syndrome [most genetic paediatric presentations] West syndrome, Lenox Gestalt Syndrome, Jr. Myoclonic epilepsy”
causes of seizure (VITaMIN CDE)
vascular
infection
trauma
autoimmune
metabolic
idiopathic
neoplastic
congenital
drugs/dementia/demyelination
eclampsia
stress/stimulation/sleep deprived