Papilloedema Flashcards
difference between papilloedema and swollen optic discs?
papilloedema is swollen optic discs secondary to raised ICP, the other term is just general
is papilloedema unilateral or bilateral?
bilateral
why does raised ICP affect the eye?
subarachnoid space surrounds the optic nerve as well as the brain
why does the optic disc become swollen in papilloedema?
axoplasmic flow
venous congestion
all caused by raised ICP
how can raised ICP kill a patient?
if pressure gets too high the brain squeezes through the foramen magnum -> compressed brainstem -> death
cause of disc swelling in an overweight hypertensive patient?
malignant hypertension
important investigation to do in someone presenting with swollen discs?
blood pressure
lumbar puncture
how to diagnose idiopathic intracranial HT?
lumbar puncture
can IIH cause swollen discs?
yes
appearance of chronic swollen discs?
atrophic, pale
no.1 diagnosis until proven otherwise if patient has bilateral disc swelling?
space occupying lesion