Flashcards in Stroke Deck (28)
A Rosier score of below 0 indicates what?
Stroke is likely
A Rosier score of above 0 indicates what?
Low likely hood of stroke
What imaging technique is used in the acute phase of stroke treatment?
What imaging technique is used in the chronic phase of stroke treatment?
85% of strokes are due to....
What are some of the main causes of infarcts?
10% of strokes are due to....
What are some of the common causes of haemorrhagic strokes?
5% of strokes are due to....
Sub arachnoid haemorrhage
When can thrombolysis be used?
<4.5 hours since onset of symptoms
What is the drug of choice used in thrombolysis?
What other rescue therapy is available?
CT angiogram guided catheterisation
In a mild stroke what drugs are used?
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.
Intermittent pneumatic compression reduces risk.
Drugs such as heparin needs to be carefully weighed against the risk of bleeding.
Transient Ischaemic Attack
Brief episode of neurological symptoms
Why are TIAs not considered benign?
Dramatically increased risk of stroke after a TIA
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
A posterior stroke presents with what?
Cerebellar dysfunction - DANISH
Isolated homonymous field defects
Cranial nerve dysfunction - brainstem involvement
What is a lacunar stroke?
Purely motor or sensory
What is DANISH - Posterior stroke
Slurred staccato speech
What is dysdiachokinesia?
Difficulty in performing fast alternating movements e.g
Use door handle
Tap foot rapidly
What are some higher cerebral dysfunctions?
Brocas (Expressive) dysphasia
Wernickes (Receptive) dysphasia
What is expressive aphasia?
Difficulty producing coherent speech
What is Wernickes (Receptive) aphasia?
Hard to understand speech or written word.
If someone has Broca's (expressive) dysphasia which region of the brain is likely to be damaged?
Inferior frontal gyrus