Papilloedema Flashcards
What is papilloedema?
Optic disc swelling secondary to raised ICP
All patients with bilateral optic disc swelling should be suspected of what?
Raised ICP due to a space occupying lesion
Raised ICP can be treated conservatively. True/false?
False - medical emergency
Outline the pathophysiology of papilloedema
Subarachnoid space surrounding optic nerve is continuous with SAS surrounding brain - means that when ICP increases it is transmitted to SAS and then CN II
What are the three components contributing to ICP?
Brain
Blood
CSF
Why is raised ICP a surgical emergency?
As the brain is squeezed through the foramen magnum, causing brainstem compression and death
Where is the CSF produced?
Choroid plexus of lateral ventricles
What is idiopathic intracranial hypertension?
Increased CSF pressure