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50 Cards in this Set

  • Front
  • Back
tonic clonic seizures duration
1 min or less

freeze - flex, then extend,
tonic CRY
then tremor
cause of tonic clonic seizure
metabolic or toxic
when to take seizure to the hospital
status epilepticus (prolonged)
pregnant
diabetic (hypoglycemia)
multiple, repeated seizures with LOC

can go later for:
injured
FIRST seizure
know the toxic metabolic causes for seizures
HYPOGLYCEMIA
Na, Ca, Mg
stimulant or proconvulsant
sedative withdrawal

SLEEP DEPRIVATION

if you really suspect infection: LP

then after you have ruled these out:
EEG, MRI
Posterior rhythm:
where?
when?
- occipital region, need HIGH voltage

- eyes closed and not focusing on much
when do you see epileptiform discharges?
INTERictally

focal = partial
- only one node is firing
diffuse = generalized
what are waves during seizures called?
focal epileptic seizures
or generalized..
aura v prodrome: duration
aura- mins
pro- hours to days
aura v prodrome: which type of seizure
aura: partial complex only
simple v complex partial seizures
complex have LOC
auras in temporal lobe partial complex seizures
- viscerosensory
- experiential
- auditory

have the same aura each time
EEG for diagnosis of epilepsy
interictal = only gets 50% of them

More sensitive: sleep deprivation, longer time of recording
gold std for diagnosis
VIDEO telemetry + EEG
Seizure 5 year recurrence if untreated
50%
When do you treat a first seizure-- when they have an INCREASED risk of relapse
- EEG abnormal
- abnormal imaging
- FOCAL neuro deficit
- Fhx
lifestyle modifications
SLEEP
reduce stress
DIET
alcohol, stimulants
DRUGS for partial epilepsy
all are approved

Best tolerated: Phenytoin, CBZ

Best control of seizures: CBZ
Drugs for generalized epilepsy
Valproate

this is as good as CBZ, but CBZ may be better tolerated
Name the old epilepsy drugs
Valproate
CBZ
phenytoin
PB
primidone
Name the new epilepsy drugs
Gabapentin
topiramate
lamotrigine
Generalized seizures
VALPROATE
- more effective than lamotrigine
- better tolerated than either topi or lamo

use this first for gen epilepsy
What is up with the new antiepileptics?
- not as effective as old drugs
- MOre tolerable than older drugs

but: much more expensive
Contraindications: Phenytoin
generalized seizures
Contraindications: CBZ
JME is made worse
Contraindications: valproate
not during pregnancy

women of childbearing age
which drugs are highly protein bound?
Valproate
Phenytoin
Which drugs induce metabolism of other drugs
CBZ, Phenytoin, phenobarb
Which drugs inhibit metabolism of other drugs
Valproate
Phenytoin ISSUES?
- LONG half life = 4-5 days

ZERO order kinetics at high doses
CBZ things to think about:
AUTOINDUCTION - you will need to start a dose and then step it up slowly

- ELDERLY: will have a longer half life so start them LOWER
CBZ side effects
rash
Valproate side effects
hair loss
Gain weight
tremor

dont give to women in CHILDBEARING years
Of none of the old drugs work, which is the cleanest NEW DRUG on your metabolism?
- GABAPENTIN

this is NOT the same as phenobarbital. PLEASE DONT CONFUSE THEM
gabapentin profile: PK
not metab by liver,
not changed by kidney
NOT bound to protein

DOES not mess with other drugs!!
Topiramate issues
word finding difficulties
kids will be at lower grade level!
primidone side effect
libido decreased
Phenytoin side effects
dysmorphic issues ( bossing)
GI
phenobarbital: NOT GABAPENTIN

good things
less motor issues
less GI disturbances
use of the MRI
tells you if there is a structural lesion -- WORSE outcome
Causes of recent onset epilepsy
MRI: gadolinium enhancing tumor
- tumor
infection
inflammation
MRI finding on CHRONIC epilepsy
Benign tumor
AVM
Neuronal abnormalities or gliosis
Mesial Temporal Sclerosis
Describe the typical tumor that causes epilepsy
- SMALL
slow growing
near the cortex
Sharp borders and not much edema

Not much contrast
DNET: location

Type of seizures it causes
temporal lobe

partial complex
Vascular causes of CHRONIC epilepsy
AVM
cavernous malformation
3 stages of neuronal development that can be messed up in seizures
1) proliferation
2) migration
3) organization
which of these is messed up in Focal cortical dysplasia
Organization
problem with periventricular heterotopia
MIGRATION
- periventricular neurons take over the brain surface
which is the best MRI sequence for SEIZURE imaging?
FLAIR
- better matched with EEG
When do you start thinking about SURGERY
after 3 tries with drugs?

Medically refractory
- FOCAL lesion that you could target
examples of tumors that would be good for surgery = medically refractory
DNET

Mesial temporal sclerosis