Intercranial Haemorrhage Flashcards
What is usually the cause of a Subarachnoid haemorrhage?
Berry aneurysm (Circle of Wilis)
How does a Subarachnoid Haemorrhage present?
Sudden severe headache Collapse Vomiting Neck pain Photophobia
What are differentials for sudden onset headache?
Subarachnoid haemorrhage
Migraine
Benign coital cephalgia
What are signs of a Subarachnoid Haemorrhage?
Neck stiffness Photophobia Decreased conscious level Focal neurology deficit (dysphasia, hemiparesis, 3rd nerve palsy Retinal/Vitreous haemorrhage
When may a brain CT be negative?
> 3 days post ictus
When is a lumbar puncture safe to perform?
In alert patient with no focal neurological deficit and no papiloedema after normal CT
Where is a cerebral angiography performed?
Via femoral artery using Seldinger technique
What may cause cerebral angigrophy to miss an aneurysm?
Vasospasm
What are possible complications of a Subarachnoid Haemorrhage?
Re-bleeding Delayed ischaemic deficit Hydrocephalus Hyponatraemia Seizures
When does delayed ischaemia occur?
Days 3-12
What are signs of delayed ischaemia?
Altered conscious level
Vasospasm
What are treatments for delayed ischaemia?
Nimodipine
High fluid intake (Triple H therapy)
What is hydrocephalus?
Increased intercranial CSF pressure
How dos hydrocephalus present?
Increasing headache
Altered conscious level
Often transient (not lasting)
What is the treatment for hydrocephalus?
CSF drainage
LP, EVD, shunt