Neurological Flashcards

1
Q

What is the 3rd most common cause of death in the UK?

A

Stroke

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2
Q

Fraction of Ischaemic Vs Hemorrhagic

A

87% Ischaemic

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3
Q

2 types of Ischaemic Stroke

2 types of Haemorrhagic Stoke

A

Thrombotic and Embolic

Intracerebral and SAH

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4
Q

Carotid Symptoms

A

Amaruosis Fugax and Hemisensory loss, transient loss of vision

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5
Q

Vertebrobasilar symptoms

A

Diplopia, Vertigo, Vomiting, Dysarthria, Ataxia and Visual loss

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6
Q

Treatment for Ischaemic and Haemorrhagic

A
Ischaemic = Altepase withing 4.5 hrs, mechanical clot clearance
Haemorrhagic = Reverse anticoagulation with prothrombin concentrate and possible surgical intervention
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7
Q

Risk factors for SAH

A

50 yrs old, Female, afro-carribbean, smoking, HTN, cocaine and alcohol

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8
Q

Most common site of SAH

A

Berry Aneurysm in circle of willis

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9
Q

Symptoms of SAH

A

Thunderclap headache, may be sentinel bleeds - small leaks from aneurysm gives some symptoms but resolve themselves
Decreases level of consciousness, neck stiffness, loss of pupillary light reflex

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10
Q

Investigations of SAH

A

CT head and the LP if negative

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11
Q

Treatment of SAH

A

Prevent further bleeding/ re-bleeding

70% die before leaving hospital

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12
Q

Define Epilepsy

A

Transient occurrence of signs and symptoms due to abnormal electrical activity in the brain

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13
Q

When is a diagnosis of epilepsy made?

A

1) > 1 unprovoked seizure > 24 hrs apart
2) 1 unprovoked seizure + 60% probability of another
3) Diagnosis of an epilepsy syndrome

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14
Q

Focal/Partial Seizures

A

Activity is limited to one part of one brain hemisphere -

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15
Q

Generalised

A

Widespread seizure activity with many different subtypes

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16
Q

Absence

A

Activity throughout the whole brain - causes unconsciousness without convulsions - 2 to 10 seconds

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17
Q

Tonic-clonic

A

1 to 3 minutes, loss of consciousness. Tonic phase of muscle stiffness, incontinence and tongue biting. Clonic phase - extremities jerk rhythmically with breathing irregularities. Usually followed by post-ictal phase of reduced consciousness.

18
Q

What is the leading cause of early childhood death in the UK?

A

Bacterial Meningitis

19
Q

What is inflammed in Meningitis?

A

Leptomeninges and CSF

20
Q

Bacterial vs Viral

A

Bacterial is less common but more severe

21
Q

Risk factors of meningitis

A

Low birth weight, CSF shunts or dural defects

22
Q

Causative organisms

A

Infants - GBstrep, Listeria Monocytogenes, E.coli, H.flu, N.men
Adults - S. pneu, H.flu, N.men + gram neg bacilli

23
Q

Who is given prophylactic antibiotics

A

Pregnant women at risk of GBstrep

24
Q

What is aseptic meningitis?

A

Cells in CSF but no gram stain or culture

25
Symptoms of meningitis
Fever, headache, neck stiffness, LoC, Non-blanching rash, Kernigs and Brudzinski's sign
26
Investigations of meningitis
Lumbar Pucture and CT head if neuro signs
27
Meningitis Treatment
Benzylpenicillin for meningococcal septicaemia Blind therapy = Ceftriaxone n+/- Amoxicillin Corticosteroids and Dexamethasone
28
Is migraine more common in men or women?
3x more common in women
29
What classifies a chronic migraine?
Having a migraine at least every other day
30
Different Types of migraine (3)
1) Headache with aura 2) Headache without aura 3) Aura but no headache1
31
Symptoms of migraine
Paroxysmal, severe, unilateral headache | 30% have premonitory phase (Vomiting/visual loss)
32
Treatment of migraine - mild, severe and prophylaxis.
Mild = Analgesia, Anti-emetics, fluid and rest Severe = Triptans (Serotonin agonists) Prophylaxis if > 2 attacks / month and unresponsive to treatment once they begin - Pizotifen/ B-blockers
33
Is parkinsons more common in men or women?
1.5 x more common in men
34
Parkinsonism vs Parkinson's Disease
Parkinsonism = Syndrome involving bradykinesia, rigidity, tremor and postural immobility Parkinson's Disease = Most common cause of Parkinsonism
35
Pathophysiology of Parkinson's Disease
Depletion of dopamine secreting cells in the substantia nigra
36
Symptoms of parkinsons
Unilateral to begin with and become bilateral | Bradykinesia, Tremor, slow shuffling gait, trouble turning and initiating movement, depression, anxiety
37
Treatment of parkinsons
L-dopa - can cross the BBB but dopamine can't | Dopamine agonists - Ropinorole or Pramipexole
38
What is the most common form of chronic recurring head pain?
Tension headache
39
Who are tension headaches most common in?
Females, young adults
40
Presentation of tension headaches
Featureless, generalised headache - tightness around head | Gradual onset and less severe, non-pulsatile
41
Episodic vs Chronic TH
``` Episodic = Occur on less than 15 days of a month Chronic = More than 15 days of a month ```
42
TH Treatment
``` Episodic = Analgesia, lifestyle modification, acupuncture, massage Chronic = The above + antidepressants (Amitriptyline) ```