T3 Epilepsy Flashcards

1
Q

definition of seizure

A

occurrence of at least 2 unprovoked seizures with or with convulsions separated by at least 24 hours. convulsion is violent / involuntary contractions of voluntary muscle.

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2
Q

general pathophysiology of epilepsy

A
  1. Influx of sodium
  2. influx of calcium
  3. release of glutamate
  4. activation of excitatory (glutamate) receptor (NMDA and non-NMDA - AMPA & KA) cause neuronal firing
  5. reduction of gaba inhibitor
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3
Q

action of glutamate if bind to NMDA or non NMDA receptor

A

if bind to NMDA, longer action but slow excitatory post synaptic potential

if bind to non NMDA, FAST excitatory

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4
Q

______ and ______ must bind to the NMDA receptor in order for it to open

A

glutamate and glycine

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5
Q

seizure happens due to __________ of excitatory and inhibitory transmitter

A

imbalance

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6
Q

causes of seizures in newborn

A

brain malformation
maternal drug use
lack of brain oxygen during birth
intercranial hemorrhage
inborn error in metablokism
low levels of glucose and cations

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7
Q

cause of seizure in infant and young child

A

febrile seizure
brain tumor (rare)
infection

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8
Q

cause of seizure in adult or child

A

genetic
head trauma
congenital condition (down syndrome, angelman’s syndrome, tuberous sclerosis & neurofibromatosis)
progressive brain disease (rare)

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9
Q

classification of seizure

A

partial seizure
generalized seizure
status epilepticus
unclassified seizure

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10
Q

other name of partial seizure

A

focal

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11
Q

class of partial seizure

A

3 class:

simple
complex
secondary generalized

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12
Q

difference between partial and generalized seizure

A

partial happens w local onset, genralized occurs without local onset happens bilaterally symmetrical

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13
Q

difference between simple and complex partial seizure

A

simple still concius, complex not concious

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14
Q

type of seizure under generalized siezure (7)

A

absence
myoclonic
clonic
tonic
tonic-clonic
atonic
infantile spasm

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15
Q

simple partial sizure comes with 3 type of symptoms

A

motor symptoms
sensory symptoms
psychic symptoms

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16
Q

complex partial seizure can happen with or without ______

A

automatisms

17
Q

symptoms of partial seizure

A
  1. motor: muscle jerking and stiffening, lip smacking, chewing
  2. sensory: unusual sensation (aura), paresthesia
  3. automatism: sweating, pupil dilation, flushing, falling
  4. behaviour: loss of consciousness, hallucination and dysphasia (slurred speech)
18
Q

symptoms of abssence seizure

A

blank stare
brief upward rolling of the eye
interruption of current activity

19
Q

absence seizure is also known as

A

petit mal

20
Q

absence seizure last for

A

less than 15 seconds

21
Q

tonic clonic is also known as

A

grand mal

22
Q

tonic-clonic seizure begins with what phase

A

begins with tonic phase then clonic

23
Q

explain tonic-clonic seizures

A

the first phase is tonic phase. patient will become rigid abd fall on the ground with back ache for 1 mins. the respiration will be interrupted.

second phase is clonic phase. patient will experience rapid muscle jerking and muscle flaccidity. patient will suffer incontinence, tongue biting and heavy salvation.

24
Q

clinical presentation of tonic-clonic seizure

A

cyanotic due to respiratory interrupted
rapid muscle jerking
muscle flaciddity
back ache
body rigid
incontinence
tongue biting
heavy salvation
deep sleep

25
Q

difference between clonic anf myoclonic

A

mycolonic is shock like muscle contraction
clonic is muscle jerking

26
Q

what is the diagnostic test of seizure

A

check the prolactin level after 10-20 mins
why? bcs to differentiate pseudo seizure

others:
lab test SMA 20
CBC
urinalysis
special bond chemisteries
lumbar puncture (if fever)
MRI
EEG
neurological imaging (MRI, functional MRI, PET, SPECT)

27
Q

why diagnostic test is conducted

A

to rule out treatable cause of seizure

28
Q

5 mechanism of AED

A

enhancement of gaba action
inhibition of sodium channel fx
inhibition of calcium channel fx
block of glutamate receptor
inhibit glutamate release