[TIA] Flashcards
<24hrs
MI
Stroke
critical intracranial stenosis
superior division of MCA
[TIA]: progressive vision loss “curtain descending” suggestive of?
amaurosis fugax
retinal artery embolism
stroke in same arterial territory
carotid atherothromboembolism
carotid bruit
prosthetic valve
valve disease
AF
mural embolism
polycythaemia
myeloma
sickle cell anaemia
WCC increased (leucostasis)
symptoms spread over seconds
twitching/jerking
symptoms spread over minutes
visual scintillations
ABCD2
Age >60 Blood pressure >=140/90 Clinical features (unilateral weakness =2points speech disturbance+no weakness=1points) Duration of symptoms >1hr = 2 points 10-59mins = 1 point Diabetes
> =6
> =4
7 days
1 month
residual deficit
multiple in short time
cardioembolism
Cardiac emboli
Clopidogrel (75mg/d)
Aspirin (300mg/d)
Dypiridamole (200mg/12hrs)
aspirin 75mg/d
inhibits platelet aggregation by modifying platelet ADP-R
increase cAMP
Decrease Thomboxane A2
140/85
> 70% stenosis at origin of internal carotid artery
risk is low
within 2 weeks of presentation
no
transcranial doppler
Hypoglycaemix attack
US wave bounce off RBCs.
Shows speed of flow.
Unilateral weakness = 2pts
No weakness, speech disturbance = 1pt
> 1hr = 2pts
1-59 mins = 1pt