neuro - epilepsy, seizures etc Flashcards
what is a seizure
paroxysmal abnormality of motor, sensory, autonomic and or cognitive function due to transient brain dysfunction
what is epilepsy
a brain disorder that predisposes the patient to have unprovoked epileptic seizures
can be recognised after two unprovoked seizures
acute symptomatic epileptic seizures
an epileptic seizure which is triggered by an acute brain injury (ie from a stroke, meningitis etc)
do not constitute an epilepsy
febrile seizure
seizure with a fever but no infection intracranially
occurs early in virus when fever is rising
brief generalised tonic clonic seizures
simple ones give kids the same chance of epilepsy as any other kids
but complex seizures (focal, prolonged, repeated in the same illness) increase epilepsy risk
infection screen
what age is most likely to have febrile seizures
6months - 6 years
what are blue breath holding spells
in toddlers who are crying/angry
cant catch their breath - go blue and stiff then limb, with rapid recovery
what is reflex asystolic syncope
caused by sudden pain/surprise
stops breathing, goes pale - stiff +brief convulsions
infantile spasms
age of onset
seizure pattern
3-12 months
flex head/trunk then extend arms
Rx vigabatrin +/- steroids
childhood absence epilepsy
age
characteristics
4-12 years
unresponsive stare and stops doing anything, may realise they have missed something and be puzzled after
can interfere with school
can be induced by hyperventilation
some evolve into juvenile absence or juvenile myoclonic epilepsy but most remit 80%
benign rolandic epilepsy
age etc
4-10 years
tonic clonic seizures in sleep
tongue feels odd, face distorts
juvenile absence epilepsy
10-20 years old
absences and generalised tonic clonic seizures
often with photosensitivity
juvenile myoclonic epilepsy
10-20 years old
myclonic seizures
absence seizures - mostly after waking (clumsy)
generalised tonic clonic seizures
investigation for ?epilepsy?
EEG
treatment for epilepsy first line?
sodium valproate
valproate side effects
weight gain, hair loss, liver failure