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Neurology Year 3 > Stroke > Flashcards

Flashcards in Stroke Deck (28)
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1

A Rosier score of below 0 indicates what?

Stroke is likely

2

A Rosier score of above 0 indicates what?

Low likely hood of stroke

3

What imaging technique is used in the acute phase of stroke treatment?

CT

4

What imaging technique is used in the chronic phase of stroke treatment?

MRI

5

85% of strokes are due to....

Infarcts

6

What are some of the main causes of infarcts?

Atheroemboli
Small Vessel
Cardioembolic
Malignancy

7

10% of strokes are due to....

Haemorrhagic

8

What are some of the common causes of haemorrhagic strokes?

Amyloid antipathy
Hypertension
Structural abnormality

9

5% of strokes are due to....

Sub arachnoid haemorrhage

10

FAST

Face
Arms
Speech
Time

11

When can thrombolysis be used?

<4.5 hours since onset of symptoms

12

What is the drug of choice used in thrombolysis?

tPA

13

What other rescue therapy is available?

Endovascular therpay
CT angiogram guided catheterisation

14

In a mild stroke what drugs are used?

Aspirin 300mg
Clopidogrel

15

Before administering anti platelets what should you know?

You need to wait 24 hours post thrombolysis and a CT to know if there is a bleed or not.

16

DVT prophylaxis

Intermittent pneumatic compression reduces risk.
Drugs such as heparin needs to be carefully weighed against the risk of bleeding.

17

TIA

Transient Ischaemic Attack
Brief episode of neurological symptoms

18

Why are TIAs not considered benign?

Dramatically increased risk of stroke after a TIA

19

A total Anterior circulation stroke presents with what?
Middle and Anterior cerebral arteries affected.

Higher cerebral dysfunction
Homonymous visual field defects
Contralateral motor and sensory deficit

20

A posterior stroke presents with what?

Cerebellar dysfunction - DANISH
Isolated homonymous field defects
Cranial nerve dysfunction - brainstem involvement

21

What is a lacunar stroke?

Purely motor or sensory

22

What is DANISH - Posterior stroke

Dysdiadochokinesia
Ataxia
Nystagmus
Intention tremor
Slurred staccato speech
Hypotonia

23

What is dysdiachokinesia?

Difficulty in performing fast alternating movements e.g
Use door handle
Tap foot rapidly

24

What are some higher cerebral dysfunctions?

Brocas (Expressive) dysphasia
Wernickes (Receptive) dysphasia

25

What is expressive aphasia?

Brocas
Difficulty producing coherent speech

26

What is Wernickes (Receptive) aphasia?

Hard to understand speech or written word.

27

If someone has Broca's (expressive) dysphasia which region of the brain is likely to be damaged?

Inferior frontal gyrus

28

If someone has receptive aphasia which region of the brain is likely to be damaged?

Superior temporal gyrus
Wernickes Aphasia