Subarachnoid Haemorrhage

describe pathogenesis and clinical presentation of subarachnoid haemorrhage;
discuss the investigation and management of subarachnoid haemorrhage;
outline the complications of subarachnoid haemorrhage (e.g. vasospasm, re-bleeding and development of hydrocephalus).

Outline how an aneurysm forms, and what factors can cause their formation and rupture…
Here’s a graph showing us how an aneurysm forms…
Where do we find blood vessels in the brain, and what happens when they rupture?
What happens if an aneurysm ruptures through the pia mater?
And what if an aneurysm ruptures through the arachnoid mater?
Look at an aneurysm that ruptured intraventricularly…
Outline the importance and impact of aneurysmal subarachnoid haemorrhage (ASAH)…
Outline the incidence of ASAH…
What are the other causes of subarachnoid haemorrhages?
Here’s an angiogram showing a large arteriovenous malformation with an intranidal aneurysm, rupturing to produce a SAH…
Which factors predispose you to an aneurysmal SAH?
What sort of history would make us suspect a SAH?
Outline the signs we’d see on clinical examination of a patient with SAH…
Here are some images showing retinal haemorrhage and subhyaloid haemorrhage…
How do we grade a SAH?