arterial occlusion Flashcards
middle cerebral artery
where it is affected
3 common effects
MCA is the most common location for strokes
- UE > LEs
- results in c/l hemiplegia and sensory loss (mostly to face and arm)
- homonymous hemianopsia is common
middle cerebral artery in dominant* left* hemisphere can cause… (2)
aphasia
apraxia
anterior cerebral artery
lobes it affects
what it affects (2)
rare because region has a lot of collateral circulation 2/2 circle of Willis
supplies blood to frontal and superior medial parietal lobes
- LE >UE
- sensory and motor loss on c/l side
anterior cerebral artery in dominant hemisphere can lead to (3)
- mental confusion
- aphasia
- contralateral neglect
posterior cerebral artery common effects (4)
lobe it supplies
- persistent pain syndrome/ contralateral pain/ thalamic pain
- temperature loss
- aphasia
- homonymous hemianopsia (*think- what other arterial lesion causes this?)
supplies occipital lobe
vertebral basilar artery
- often results in death from edema
- “locked in syndrome” - can only communicate with eye blinks
- coma
- vertigo
- vertigo
- nausea
- dysphagia
- ataxia
anterior inferior cerebellar (7)
- unilateral deafness
- loss of pain & temperature on c/l side
- paresis of lateral gaze
- horners syndrome
- ataxia
- vertigo
- nystagmus
what is horners syndrome
ptosis, constricted pupil and loss of sweating
from loss of sympathetic nerve supply CN III
infarct to anterior inferior cerebellar artery
superior cerebellar artery effects (4)
what it supplies
- severe ataxia
- dysarthria (loss of muscle articulation control)
- dysmetria
- c/l loss of pain and temperature
supplies blood to superior half of cerebellum & pons
posterior inferior cerebellar (6)
Aka**
results in Wallenberg’s syndrome
- vertigo
- nausea
- hoarsness
- dysphagia
- ptosis
- loss of sensation to ipsilateral face and c/l limbs
possibility of Horners syndrome
Wallenberg aka** lateral medullary syndrome
