Stroke

Question 1

Define a stroke

Answer 1

neurological deficit caused by injury of the CNS by a vascular cause

Question 2

Define TIA

Answer 2

transient episode of neurological dysfunction, without acute infarction

Question 3

What percentage of strokes are thromboembolic?

Answer 3

85%

Question 4

Which part of the brain is responsible for micturation and continence?

Answer 4

Paracentral lobe

Question 5

What does a stroke in the anterior cerebral artery cause?

Answer 5

contralateral lower limb weakness and sensory deficit. Urinary incontinence, alien hand syndrome and frontal lobe features.

Question 6

What does a stroke in the proximal middle cerebral artery?

Answer 6

contralateral hemiparesis, sensory deficit, homonymous hemianopia. If left side = aphasia, if right side = left sided hemispatial neglect

Question 7

What does occlusion of leticulostriate arteries cause?

Answer 7

Lacunar stroke, very specific sensory or motor loss (sometimes both)

Question 8

What does a stroke in the distal middle cerebral artery cause?

Answer 8

Superior = motor affected, brocas area
Inferior = Sensory, wernickes area, contralateral visual field defect no macular sparring

Question 9

What does a stroke in the posterior cerebral artery cause?

Answer 9

Contralateral homonymous hemianopia with macular sparing and contralateral sensory loss

Question 10

What does a cerebellar stroke cause?

Answer 10

Ipsilateral cerebellar signs (DANISH), ipsilateral horners syndrome and contralateral sensory signs

Question 11

Where is the occlusion in locked in syndrome?

Answer 11

In the basilar artery