Stroke

Question 1

branches of circle of willis

Answer 1

anterior x2
anterior communicating x2
middle x2
posterior communicating x2
posterior x2
basilar

Question 2

where does ICA originate

Answer 2

common carotid - bifurcates at C4

Question 3

what does ICA travel to brain in

Answer 3

carotid sheath

Question 4

what foramen does ICA pass through to enter cranial cavity

Answer 4

carotid canal

Question 5

where do vertebral arteries originate

Answer 5

subclavial arteries

Question 6

what do vertebral arteries join to make

Answer 6

basilar artery

Question 7

what foramen do vertebral arteries pass through to enter cranial cavity

Answer 7

foramen magnum

Question 8

what does anterior cerebral artery supply

Answer 8

anteromedial brain

Question 9

what does middle cerebral artery supply

Answer 9

lateral brain

Question 10

what does posterior cerebral artery supply

Answer 10

medial and lateral posterior brain

Question 11

contralateral weakness and sensory loss in lover limbs

face spared

Answer 11

anterior cerebral artery

Question 12

contralateral weakness over upper limbs

face involvement

Answer 12

middle meningeal artery

Question 13

strokes in cerebral hemispheres cause problems on ipsilateral/contralateral side

Answer 13

contralateral

Question 14

strokes in cerebellum cause problems inf ipsilateral/contralateral side

Answer 14

ipsilateral

Question 15

weber’s syndrome

Answer 15

stroke of branches of posterior cerebral arteries supplying midbrain

Question 16

clinical features of weber’s

Answer 16

ipsilateral CNIII palsy

contralateral weakness of upper and lower extremities

Question 17

Wallenberg syndrome affected branch

Answer 17

posterior inferior cerebellar artery

Question 18

clinical manifestations of Wallenberg syndrome

Answer 18

ipsilateral face pain and temp loss
contralateral limb/torso pain and temp loss
ataxia and nystagmus

Question 19

lateral pontine syndrome affected branch

Answer 19

anterior inferior cerebellar artery

Question 20

clinical manifestation of lateral pontine syndrome

Answer 20

ipsilateral face paralysis

deafness

Question 21

what are lacunar infarcts

Answer 21

affects vessels around basal ganglia

Question 22

clinical manifestations of lacunar infarcts

Answer 22

pure sensory stroke of arm, face, leg or all three

risk of ataxic hemiparesis

Question 23

what is total anterior infarct

Answer 23

infarcts of middle and anterior cerebral arteries

Question 24

clinical requirements of total anterior circulation infarct

Answer 24

motor deficit
speech deficit
homonymous hemianopia

Question 25

if only 2 of the criteria for total anterior syndrome (eg motor and speech, speech and homonymous hemianopia)

Answer 25

partial anterior

Question 26

investigations for suspected stroke

Answer 26

CT head - differentiate between haemorrhagic and ischaemic

Question 27

intervention for thromboembolic stroke

Answer 27

altepase thrombolysis

Question 28

up to how long after symptoms start can altepase be given

Answer 28

4.5 hours

Question 29

intervention for haemorrhagic stroke

Answer 29

clipping