Epilepsy Flashcards

0
Q

Why are seizures caused in epilepsy?

A
Either a disrupted signal or too much signal
So increased excitation
Decreased inhibition
Loss of homeostatic control
Spread of neuronal hyperactivity
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1
Q

Define epilepsy

A

Disturbance in the electrical signalling of the brain
There are many different types
Its tendency to have seizures that start in the brain

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2
Q

What are fits that are associated with fever and in which population do they occur?

A

Febrile convulsions

Children

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3
Q

What are the two main types of epilepsy?

A

Idiopathic

Symptomatic

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4
Q

What are the two main types of seizure?

A

Generalised

Focal

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5
Q

Explain what a focal seizure is

A

Occurs in one part of the brain but it depends where in the brain they happen
Simple focal seizure the person is usually conscious, usually knows something is wrong, usually remember afterward
They can be warnings to develop into another type of seizure

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6
Q

What are the symptoms of parietal lobe focal seizures?

A

Burning sensation
Tingling
Thinking that a limb is bigger than it is

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7
Q

What are the symptoms of temporal lobe focal seizures?

A

Abnormal taste or smell
Déjà vu/ jamais vu
Fear and joy
Rising feeling in the stomach

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8
Q

What are the symptoms of occipital lobe focal seizures?

A

Hallucinations
Disturbed vision
Loss of vision
Flashing lights

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9
Q

What are the symptoms of frontal lobe focal seizures?

A

Wave
Abnormal movements
Twitching

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10
Q

What are complex focal seizures?

A
Affect a bigger part of one hemisphere
Consciousness may be affected
May be confused
May involve wandering around or behave strangely
May not understand you
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11
Q

What are the symptoms of temporal lobe complex seizures?

A
Pick up objects for no reason
Chewing lip or smacking movements
Words that don't make any sense
Wander around confused
Last for 2 to 3 minutes
May take up to 10 minutes to recover
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12
Q

What are the symptoms of frontal lobe complex seizures?

A

Cry or scream
Strange postures
15 to 30 seconds duration
Recover quickly

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13
Q

Can a focal seizure turn into a generalised seizure and what happens?

A

Yes

Loss of consciousness

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14
Q

What is a generalised seizure?

A

Affects both sides of the brain
Can occur without warning
Unconscious
Do not remember what happened

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15
Q

What is another name for absence seizures?

A

petit mal

16
Q

Describe absent seizures

A

Look like daydreaming
More common in children
Unconscious
Eyelids may flutter

17
Q

What are atypical absences?

A

Last longer absences
May involve physical movement
Tends to happen in people with a learning disability

18
Q

What is a tonic seizure?

A

Patient becomes stiff

Tend to fall

19
Q

What are atonic seizures?

A

Patient becomes floppy
Their muscles relax
Often fall

20
Q

What are myoclonic seizures?

A

Muscles tend to jerk
Usually arms and legs but it can affect the head and trunk
Brief
Person is conscious

21
Q

What is another name for tonic clonic seizures?

A

grand mal

22
Q

Explain what happens at the start of a tonic clonic seizure

A

Patient becomes unconscious
Fall
May bite tongue or cheek
Stiff

23
Q

What happens during a tonic clonic seizure?

A

Patient will shake
Breathing may be affected
Colour may change
May wet themselves

24
Q

What happens after a tonic clonic seizure?

A

Breathing returns to normal

Me feel tired/confused/heady/sleepy

25
Q

What is status epilepticus?

A

Seizure lasts for 30 minutes or seizures with no breaks for 30 minutes
Usually five minutes it is an emergency

26
Q

What are seizure triggers?

A

Stress
Alcohol
Lack of sleep
Flashing lights

27
Q

What are the dangers of severe epilepsy?

A
Hyperoxia
Death 
Trauma
Cognitive impairment
Psychiatric disease
Stigma
Brain dysfunction
ADRs
28
Q

What can you give status epilepticus?

A

Phenytoin 15 to 20 mg/kg
Rapidly reaches therapeutic level
Or benzodiazepines (0.1mg/kg)
Rectal if difficult