Intracranial bleeding (dave's notes)

Question 1

List the types of intracranial haemorrhage

Answer 1

Extradural, subdural, and subarachnoid

Question 2

What may extradural haemorrhage result from?

Answer 2

Rupture of the middle meningeal artery

Question 3

What does rupture of the middle meningeal artery cause?

Answer 3

An extradural haemorrhage with thromboses between bone and skull. This may cause contralateral hemiparesis +/- ipsilateral pupil dilatation

Question 4

What does subdural haemorrhage usually result from?

Answer 4

Rupture of the superior cerebral vein at the level of the superior sagittal sinus

Question 5

What does rupture of the superior cerebral vein result in?

Answer 5

Subdural haemorrhage, usually occurs at the level of the superior sagittal sinus. Blood enters the space between the dura and arachnoid. Slower to develop and less severe than an extradural.

Question 6

What does a subarachnoid haemorrhage result from?

Answer 6

Caused by rupture of arteries within the brain.

Question 7

What does rupture of arteries within the brain cause?

Answer 7

A subarachnoid haemorrhage. Allows blood to contaminate the CSF.

Question 8

What layers are never separated?

Answer 8

The pia is never separated from the brain. The two layers of dura mater are also never separated.