epilepsy Flashcards
what is epilepsy
group of conditions assosociated with reduced levels of GABA in the brain.
leads to neurons requiring less stimulation to reach threshold of passing on messages
febrile seizure
occurs in children most commonly
triggered by fever above 38 degrees
tx = cool child down
NOT epilepsy
triggers of epilepsy
majority idiopathic (cause unknown)
trauma - head injury
CNS disease
social elements - rarer - excessive alcohol , late nights and lack of sleep
epileptic focus
point in brain where seizures begin
in generalised epilepsy - point is in centre of brain so can spread to all areas of cortex
in partial epilepsy - epileptic focus only reaches one area of cortex so whole body not affected
partial vs generalised epilepsy
generalised - entire body both sides affected by seizures. Central epileptic focus
partial - only small area of brain affected. can be motor or sensory ( taste in mouth , smell , hallucinations etc)
tonic clonic seizure
seizure involving tonic (stiffness) and clonic (twitching jerking) phases of muscle activity
type of generalised epilepsy
usually spontaneously stops after 1-3 mins
petit mal seizure
‘absence seizure’
usually in childhood
short (5-15 secs) episodes of loss of awareness (vacant stare, eyelids flutter, stop activity)
what should be done if a pt comes in and tells you they have epilepsy
assess likelihood of seizure taking place
- when was last one?
-are they compliant with medications?
dental implication of drug phenytoin
anti seizure medication that can cause gingival hyperplasia
dental implications of drug valproate
used to treat epilepsy and bipolar disorder
can cause pt to have prolonged bleeding times