Neurology: Extradural, Subdural And Subarachnoid Haemorrhage Flashcards
What does this usually follow?
Direct head trauma - often associated with skull fracture
What artery is typically affected?
Middle meningeal
What often occurs before the conscious level deteriorates?
A lucid interval
What can occur secondary to increasing haematoma size?
Seizures
What focal neurological signs may occur?
Dilation of ipsilateral pupil
Paresis of contralateral limbs
False localising unilateral or bilateral CN VI nerve paresis
How may it present in young children?
Anaemia and shock
How is the diagnosis confirmed?
CT scan
How is it managed?
Correct hypovolaemia
Urgent evacuation of haematoma and arrest the bleeding
What causes a subdural haematoma?
Tearing of bridging veins as they cross the subdural space
A subdural haemorrhage is a characteristic lesion in…
Non accidental injury caused by shaking or direct trauma
What other haemorrhages are typical of shaking injury?
Retinal haemorrhages
Subdural haemorrhages are occasionally seen…
Following fall from considerable height
In association with brain shrinkage through atrophy or overdrainage of hydrocephalus
