Stroke lesions location Flashcards
TACS (total anterior circulations stroke)
all 3 of:
- unilateral weakness
- homonymous hemianopia
- higher cerebral dysfunction
TACS involves …
middle + anterior cerebral arteries
PACS (partial anterior circulation stroke) criteria =
2 of the following:
- unilateral weakness (face, arms or legs)
- homonymous hemianopia
- higher cerebral dysfunction
POCS (posterior circulation syndrome)
1 of the following
- cerebellar or brainstem stroke
- loss of consciousness
- isolated homonymous hemianopia
LACS (lacunar syndrome) is due to …
subcortical stroke due to small vessel disease
LACS criteria includes =
1 of the following
- unilateral weakness
- pure sensory stroke
- ataxic hemiparesis
Lacunar infarcts involves perforating arteries around where (3)
- basal ganglia
- thalamus
- internal capsule
Features of Weber’s syndrome
- Ipsilateral CN 3 palsy
- Contralateral weakness
Ipsilateral features of Wallenberg’s syndrome
- Ataxia
- Nystagmus
- Dysphagia
- Facial numbness
- CN palsy
Contralateral features of Wallenberg’s syndrome
Limb sensory loss
Contralateral weakness with legs affected more than arms
Anterior cerebral artery
Contralateral weakness with arms affected more than legs
Middle cerebral artery
Middle cerebral artery stroke results in =
- contralateral weakness (arms > legs)
- dysphasia
- homonymous hemianopia
- dysphasia
Anterior cerebral artery stroke results in =
- contralateral hemiparesis (legs > arms)
- behavioural changes
- sensory loss
- behavioural changes
Posterior cerebral artery stroke results in =
- weakness
- dizziness
- contralateral homonymous hemianopia w/ macular sparing
- visual agnosis
Locked in syndrome due to stroke of…
Basilar artery
Amaurosis fugax is a result of stroke of
retinal/ophthalmic artery
Presentation of lacunar infarcts
either;
- isolated hemiparesis
- hemisensory loss
- hemiparesis w/ limb ataxia
Lacunar infarcts have a strong association with which condition
hypertension
Common sites of lacunar infarcts include: (3)
- basal ganglia
- thalamus
- internal capsule
Weber’s syndrome is due to a stroke of what?
branches of the posterior cerebral artery that supply the midbrain
Wallenberg syndrome is due to a stroke of what?
posterior inferior cerebellar artery
Lesions to 9th + 10th nerve nuclei result in
dysphagia + dysarthria
