Raised ICP Flashcards
0
Q
What is an uncal/transtentorial herniation? What Sx?
A
Uncus (part of temporal lobe) gets pushed through tentorial membrane against the midbrain.
III nerve palsy - dilated ipsilateral pupil, opthalmoplegia (down and out), contralateral hemiparesis (cerebral penduncle), coma if compression on midbrain
1
Q
Causes of raised ICP?
A
Malignancy/SOL BLEED/haemorrhage Trauma Infection Hydrocephalus
2
Q
What is a tonsillar herniation?
A
Pressure in the posterior fossa forcing cerebellar tonsils through the foramen magnum.
3
Q
What is a cingulate herniation?
A
Cingulate gyrus (medial frontal lobe) is forced under the rigid falx cerebri
