Stroke

Question 1

Is stroke always sudden?

Answer 1

yes

Question 2

What are examples of stroke mimics.

Answer 2

bleeding into a brain tumour
migraine
Todd's palsy after a seizure
hypoglycaemia
Bell's palsy
functional/pretending

Question 3

Number 1 investigation?

Answer 3

CT to tell you if it is haemorrhagic or infarct

Question 4

What is the only type of haemorrhage that is a stroke?

Answer 4

IntraCEREBRAL

Question 5

Causes of haemorrhagic stroke?

Answer 5

BLOOD (anticoagulants/bleeding issue)
VESSEL WALL (hypertension, vessel wall snaps)

Question 6

What make up circle of willis?

Answer 6

anterior, middle and posterior cerebral arteries

Question 7

When one artery in circle of willis is occluded chronically, what happens?

Answer 7

will cope because of collaterals

Question 8

When one artery in circle of willis is occluded acutely, what happens?

Answer 8

STROKE

Question 9

Top third of brain is supplied by what vessels?

Answer 9

large vessels and their interconnecting branches

Question 10

The deeper part of brain is supplied by what?

Answer 10

separate set of tiny vessels; perferators

Question 11

Do perforators interconnect?

Answer 11

no, each supply a small area of brain on own

Question 12

Strokes from perforators are small vessel strokes, also known as what?

Answer 12

Lacunar strokes

Question 13

What is a thrombus?

Answer 13

clot that has not travelled

Question 14

What is an embolus?

Answer 14

clot that breaks off and travels

Question 15

Do perforator strokes affect cortex?

Answer 15

NO - too deep

Question 16

If cortical function is affected, where has stroke affected?

Answer 16

cortex

Question 17

What are cortical signs?

Answer 17

higher mental fuction eg communicatoin, cognition

Question 18

Is dominant or non dominant hemisphere responsible for speech?

Answer 18

dominant

Question 19

What type of stroke can be missed?

Answer 19

lacunar

Question 20

What structure if hit can cause hemiparesis?

Answer 20

capsule

Question 21

Which 4 signs suggest total anterior circulation stroke?

Answer 21

hemiparesis
hemisensory
hemiopia
high function loss eg speech

Question 22

What makes up Partial anterior circulation stroke?

Answer 22

If high function loss with up to 2 of hemiparesis, hemisensory and hemiopia

Question 23

Multiple lacunar strokes can lead to what?

Answer 23

vascular dementia

Question 24

Posterior circulation stroke?

Answer 24

coordination, double vision, ataxia issues

Question 25

Investigations in stroke?

Answer 25

bloods
ECG - AF
carotidy artery US