Subarachnoid Haemorrhage Flashcards
1
Q
What is an SAH?
A
Subarachnoid haemorrhage
Bleeding ino the subarachnoid space
2
Q
Where is the subarachnoid space?
A
Between arachnoid and pia
3
Q
How can the causes of an SAH be classified?
A
Aneurysmal
- berry aneurysms
Non-aneurysmal
- trauma
- AVMs
- coagulopathies
4
Q
What are risk factors for SAH?
A
HTN Smoking Cocaine use Female Connective tissue disorders APCKD
5
Q
What are features of a SAH?
A
Severe thunderclap headache
N+V
Reduced consciousness
Meningism
Focal neurology
6
Q
How is a suspected SAH investigated?
A
Non-contrast CT head
LP
7
Q
What does a CT head show in SAH?
A
Hyperattenuation in the subarachnoid space
8
Q
What does an LP show in SAH?
A
Xanthochromia
Raised opening pressure
Raised protein
9
Q
How is SAH managed?
A
Prevent rebleed
Prevent vasospasm - nimodipine
Correct electrolytes
10
Q
What are complications of SAH?
A
Rebleed
Raised ICP
Vasospasm
Hydrocephalus
