Stroke

Question 1

Anterior cerebral artery

Answer 1

Contralateral hemiparesis and sensory loss, lower extremity > upper

Question 2

Middle cerebral artery

Answer 2

Contralateral hemiparesis and sensory loss, upper extremity > lower
Contralateral homonymous hemianopia
Aphasia

Question 3

Posterior cerebral artery

Answer 3

Contralateral homonymous hemianopia with macular sparing

Visual agnosia

Question 4

Weber’s syndrome (branches of the posterior cerebral artery that supply the midbrain)

Answer 4

Ipsilateral CN III palsy

Contralateral weakness of upper and lower extremity

Question 5

Posterior inferior cerebellar artery (lateral medullary syndrome, Wallenberg syndrome)

Answer 5

Ipsilateral - facial pain and temperature loss
Contralateral - limb/torso pain and temperature loss
Ataxia, nystagmus

Question 6

Anterior inferior cerebellar artery (lateral pontine syndrome)

Answer 6

Symptoms are similar to Wallenberg’s
Ipsilateral: facial paralysis and deafness
Contralateral - limb/torso pain and temperature loss
Ataxia, nystagmus

Question 7

Retinal/ophthalmic artery

Answer 7

Amaurosis fugax

Question 8

Basilar artery

Answer 8

‘Locked-in’ syndrome

Question 9

Lacunar strokes

Answer 9

Either isolated hemiparesis, hemisensory loss or hemiparesis with limb ataxia
Associated with hypertension
Common sites - basal ganglia, thalamus and internal capsule

Question 10

Complications

Answer 10

Cerebral eodema - in MCA infarct can cause brainstem death
Haemorrhagic transformation
Aspiration pneumonia
Seizures
Depression
DVT
Infection