Lecture 9: Stroke

Question 1

Which type of stroke involves a blood clot?

Answer 1

Ischaemic stroke.

Question 2

Which type of stroke involves bleeding into the brain?

Answer 2

Intracerebral haemorrhage.

Question 3

Which type of stroke involves bleeding around the brain?

Answer 3

Subarachnoid haemorrhage.

Question 4

What is the difference between a thrombotic occlusion and an embolic occlusion?

Answer 4

In a thrombotic occlusion the clot forms in the brain (the cerebral vessels) and in an embolic occlusion the clot forms distally to the brain but then travels to the brain.

Question 5

What percentage of total oxygen consumption is attributed to cerebral metabolism?

Answer 5

20%.

Question 6

Which fact about stroke is true: during stroke, every minute 120m neurons, 830billion synapses and 714km of myelinated fibres are destroyed, or is it every hour?

Answer 6

Every minute!

Question 7

How many years does an ischaemic brain age every hour without treatment?

Answer 7

3.6years.