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IM Neuro Epilepsy
KYCOM Block 13
75
Medical
Graduate
01/17/2014

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Cards

Term
define epilepsy
Definition
recurrent unproviked seizures
Term
define epilepsy syndrome
Definition
one or more seizure types
EEG, genetic, and pathological features
Term
general causes of epilepsy (7)
Definition
idiopathic
vascular
congenital
trauma
tumor
degeneration
infection
Term
types of epilepsy (5)
Definition
complex partial
generalized tonic/clonic
simple partial
abence
myoclonic
Term
epidemology of epilepsy: how many people, disease association, comparison to seizure
Definition
1/12 people will have a seizure
2 million people have epilepsy
1/4 of kids with autism will have seizure
Term
define seizure
Definition
paroxysmal disturbance of brain electrical activity
symptom not disease
Term
types of seizure 4
Definition
self limited
continous
non-epileptic
epileptic
Term
types of self limited seizure 2
Definition
generalized
partial
Term
types of continous seizure 2
Definition
generalized
focal
Term
types of epileptic seizure 2
Definition
epileptic
status epilepticus
Term
3 types of self limited generalized seizure
Definition
clonic tonic
absence
myoclonic
Term
3 types of self limited partial seizure
Definition
focal sensory
focal motor
gelastic
Term
3 types of continous generalized seizure
Definition
tonic clonic status epilepticus
absence status epilepticus
myoclonic status epilepticus
Term
3 types of continous focal seizure
Definition
epolepsia partialis continous
aura continua
limbic status epolepticus
Term
non-epileptic seizure: percipitating, eyes, duration, post-ictal, ARD effect, prolactin levels, motions
Definition
percipitation: stress
eyes: closed
duration: long
post-ictal: none
ARD: refractory
prolactin: normal
motion...
quivering side to side head, pelvic thrust, falling, thrashing, asynchrnous, rhythmic movement of limbs
Term
epipeltpic seizure: percipitating, eyes, duration, post-ictal, ARD effect, prolactin levels, motions
Definition
percipitation: none
eyes: open
duration: sec-min
post-ictal: yes
ARD: responsive
prolactin: elevated
movement...
self injrous, incontinence
Term
non-convulsive status epilepticus: electric activity, tx
Definition
unequal electrograph seizure activity
periodic epileptiform discharges or rhythmic discharge with either clinical or electrographic response to tx

DO NOT give paralytics
Term
convulsive status epilepticus: duration/definition
Definition
no more than 30 min of continous seizure activity OR 2+ sequential seizures without full recovery of consciousness between seizures

modern definition: seizure >10min
practical definition: any patient still seizing
Term
things that percipitate seizure (8)
Definition
stress, emotion, sleep depirvation, sleep, hyperventilation, fever, medications, metabolic disturbance, reflex epilepsy
Term
things that percipitate reflex epilepsy (5)
Definition
photic stimuli: TV, flashing lights, visual patterns
startle, music, reading, eating
Term
things that mimic a seizure (8)
Definition
syncope
hyperventilation
panic attacks
migraine
paroxysmal movement disorders
sleep disorders
RIAs
transient global amnesia
Term
what is used to evaluate epilepsy (8)
Definition
history
EEG: sleep, photic, HV, video monitoring
MRI: unless clearly genetic
PET: surgery prep
SPECT: surgery prep
Term
define refractory
Definition
EEG for use of seizure classification or localization for surgery
Term
pediatric seizre: brain location
Definition
multifocal, never generalized
Term
what do you do if neonate with partial seizure changes post-ictal behavior
Definition
nothing, it changes in a few months for them
Term
causes of partial seizure(4), which is most common
Definition
incomplete myelination and inability to produce synchrony

pre and perinatal injury and metabolic causes are most common

brainstem activity with severe injury (synchrnous motor events)
Term
types of pediatric seizure (4)
Definition
simple febrile
complex febrile
childhood absence epilepsy
juvenile myoclonic epilepsy
Term
simple febrile seizure: duration, location in brain, outcome, tx
Definition
brief, do not reoccur in 24h, not focal

do not increase risk of epilepsy or developmental issues

not tx unless frequently reoccurrant
Term
complex febrile seizure: outcome, tx
Definition
increase risk of epilepsy by 3-10%

not tx unless problematic (preventitive: daily phenobarbital, intermittent valium with fever)
Term
childhood absence epilepsy: epidemology, onset, tx, outcome
Definition
20% genetic predisposition
75% female
onset 3012yo (peak6-7)
TX: VPA, ESM
5% remitting
Term
childhood absence epilepsy EEG signs (5)
Definition
bilateral
synchronous
symmetrical
3sec spike wave
normal background
Term
childhood absence epilepsy seizure: frequency, type, presentation
Definition
frequent
simple seizure
absence: ADD like, staring spells
Term
juvenile myoclonic epilepsy: epidemology, onset, TX, outcome
Definition
25% genetic predisposition
male = female
onset 8-26yo (peak 17-18)
TX: VPA, TPX, LEV, ZON, LTG
10% remitting
Term
juvenile myoclonic epilepsy EEG signs
Definition
rapid 4-5 sec spike OR polyspike wave ictally and intraictally
Term
juvenile myoclonic epilepsy seizure: percipitation, type, timing, symptoms
Definition
often photosensitive
myoclonus
GTCS on waking or sleep depirvation
occasional absence
Term
focal/partial seizure: location in brain, progression
Definition
originate in focus in brain
can spread to other parts
can become secondary generalized
Term
clinical signs of focal/partial seizure that became secondary generalized (3)
Definition
tonic/clonic
incontinence
autonomic disturbance
Term
symptoms of a frontal lobe focal seizure (jacksonian) (2)
Definition
tingling of arm
adverse seizure: eyes or head turn to one side
Term
symptoms of a temporal lobe focal seizure (5)
Definition
strange smell or taste
altered behavior
deja vu
lip smacking/chewing
Term
symptoms of a parietal lobe focal seizure (3)
Definition
flashing lights
spots
post seizure migraines (migralepsy)
Term
define simple partial seizure, one symptom
Definition
focal seizure that does not spread
often have aura
Term
define complex partial seizure
Definition
focal seizure with bilateral spread
Term
define generalized seizures
Definition
whole brain is firing at the same time
no aura
Term
7 symptoms/types of generalized seizures
Definition
tonic
clonic
absences
myoclonic
atomic
astatic
GTCS
Term
define tonic
Definition
pure bilateral stiffening
Term
define clonic
Definition
pure rhythmic bilateral flexion and extension
Term
define absences
Definition
brief behavorial arrest with unresponsiveness and automatisms (staring for 2-10sec)
Term
define myoclonic
Definition
lightning fast single bilateral jerk
Term
who usually gets myoclonic seizures
Definition
13-18yo girls with family hx
Term
define atomic
Definition
sudden generalized loss of tone
Term
define astatic
Definition
drop attacks due to tonic, myoclonic, or atonic seizure
Term
define GTCS
Definition
generalized tonic/clonic seizure

non-focal primary generalized tonic stiffening altering with rhythmic slonus
Term
when do you treat seizures
Definition
risk of reoccurance is 30-35% after first unprovoked seizure: only tx if they have tumor or something

risk of reoccurrence is 70% after second unprovoked seizure: tx
Term
cause of hippocampal sclerosis and tx
Definition
untreated seizure for long period of time allows pathways to develop too well and meds dont work so you need to remove part of the brain with epilepsy surgery
Term
general pathway of medication of epilepsy
Definition
always use single drug first, start low go slow

increase dose until controlled or toxicity (above theraputic range dosen't always mean toxicity)

if it dosent work switch

if monotherapy dosent work then try using two drugs (careful, sometimes it causes more seizure)
Term
how is status epilepticus tx
Definition
oxygen, vitals, IV access, IV fluids, check glycemia

protect pt and others from injury

position pt on side to prevent aspiration

treat seizure

Labs and testing

transfer to neuro ICU, consider heat CT, EEG, LP
Term
what labs and tests do you get for someone in status epilepticus (8)
Definition
SMA6, SMA12, CBC with diff and platelets, hold urine, CXR, EKG myoglobulin, if on AED check levels
Term
what should a pregnant women with seizures be on, what testing schedule
Definition
folate 1-4mg/d
vit K 20mg/d mo 8 OR
vit K 10mg IV 4h before birth + 1mg IV to newborn
check a-fetoprotein 15wk
check ARD lvl at week 0, 18, 34, post partum 12wk
ultrasound wek 18, 22
Term
how to DC ARDs
Definition
seizure free for 2-5 years
single type partial or generalized
normal neuro exam and IQ
EEG normal with tx
Term
what is the ratep of relapse when ppl get off AED
Definition
31% in kids
40% in adults
Term
what is a non-drug way to help with seizures, why, who can use it
Definition
ketogenesis improves seizure control
4 protein : 1 carb on caloric basia
uses med chain TG and allows for more carbs
beneficial in pt <10yo because the diet is hard to force on them
Term
what do you do if ARD meds dont work
Definition
experimental AED new med trial
surgery
Term
define mirror foci/kindling
Definition
many zeisures all day an new focu developing
Term
when do use vagal nerve stimulator (4)
Definition
vagus nerve stimulator is used on extratemporal non-lesion forms
in ppl who are at high risks for getting or have failed surgery
primary/secondary generalized epilepsy (surgically cannot remove)
Term
tx mirror/kindling foci
Definition
vagal nerve stimulator
Term
percent of epilepsy pt who need surgery, reasons to do it
Definition
30% dont respond to drugs
seizures must be worse than probability of causing functional impairment in surgery
have tried med for 6mo-2y (unless paritalis continous or in kid where seizure is causing developmental delay)
Term
pre-epilepsy op work up
Definition
EEG-CCTV
MRI
PET/ictal SPECT
neuropsychological testing
wada test
Term
wxplain how to do wada test
Definition
language test to make sure you dont cut out dominant language center or hemiparesis.

inject with Na barbital and localize the part of the brain needing to be removed
Term
explain the three types of focal resection
Definition
temporal lobe seizure: temporal lobectomy, anterior medial resection, amygdalohyppocampectomy

structural lesions: remove abnormality, resect epileptogenic tissue

extratemporal cortical resection: less common, difficult to localize, resection can cause functional deficit
Term
when do you use disconnect procedures, aka, process
Definition
palliative for generalized seizures (esp atonic)
corpus allosotomy: disconnect hemispheres
Term
hemispherectomy: symptoms, outcomes
Definition
unilateral cogenital injuries
sturge weber syndrome
hemimeganecephaly
rasummens encephalitis
cortex is already dysfunctional, hemispherectomy does not cause motor, sensory, or cognition effects
Term
what is the outcome of seizure free and responding to medications
Definition
free: 5%
respond 40%
Term
what is the outcome of seizure free and resoponding to VNS
Definition
free: 5%
respond: 40%
Term
what is the outcome of seizure free and resoponding in temporal resection
Definition
free: 75%
respond: 90%
Term
what is the outcome of seizure free and resoponding in extratemporal and non-lesional surgery
Definition
free: 4%
respond: ??
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