Papilloedema

Question 1

What is the difference bewteen papilloedema nad swollen optic discs?

Answer 1

swollen optic discs means disc swelling secondary to any cause. papilloedema specifically refers to swollen optic disc secondary to raised ICP

Question 2

What shoudl all patients with bilateral optic disc swelling be suspected of?

Answer 2

having raised ACP due to a SOL until proven otherwise

Question 3

What is intracrainal pressure the sum of?

Answer 3

brain; blood and CSF

Question 4

What is the Munro-Kellie hypothesis?

Answer 4

an increase in one varibale will result in a decrease of one/both of other variables since the sum must remain constant

Question 5

What happens in riased ICP?

Answer 5

brain is squeezed through the foramen magnum, brainstem compressed, patient stops breathing and ides

Question 6

What is important about cerebral blood flow?

Answer 6

brain require constant flow of blood over range of pressures- very inotlerant to hypo and hyperperfusion

Question 7

What should you always check with papilloedema?

Answer 7

BP

Question 8

What are hte possible mechanisms in idiopathic intracranial HT?

Answer 8

stenosis of transver cerebral sinuses; increased abdo pressure ( patients often obese)- obstructs CSF circulation

Question 9

What happens is disc swelling becomes chronic?

Answer 9

disc swelling subsides but disc becomes atrophic and pale