Intracranial Bleeds Flashcards
What are the 3 extra axial intracranial haemorrhages?
epi/extradural
subdural
subarachnoid
What are the 2 intra axial intracranial haemorrhages?
intracerebral
intraventricular
What does extra axial mean?
Within skull, outside brain tissue
What does intra axial mean?
Within brain tissue
What often causes extradural and subdural haemorrhages?
Trauma
e.g. assault, falls, car crash
Where is the haemorrhage in extradural?
Between skull and dural membrane
How does extradural haemorrhage present?
altered consciousness headache N and V Confusion seizures aphagia
What is usually the source of bleeding in extradural haemorrhage?
Arterial
How are extradural and subdural haemorrhages diagnosed?
CT head
extra dural - lens shaped
sub dural - crescent
Where is the bleed in subdural haemorrhages?
Between dura and arachnoid
What happens in 50% of subdural haemorrhages?
coma
What is often the source of bleeding in subdural haemorrhaged?
bridging veins
In what haemorrhage is Kernig’s sign positive?
Subarachnoid haemorrhage
What is Kernig’s sign?
person lie flat on the back, flex the thigh so that it is at a right angle to the trunk, and completely extend the leg at the knee joint.
Where is the bleeding in subarachnoid haemorrhages?
in the subarachnoid space