IIH (WP)

Question 1

According to WP, Frisen Stage 1:

Answer 1

1. Blurred margin
2. Disc hyperemia
3. Sectoral blurring of peripapillary rNFL
4. Flame-shaped hemorrhages

Question 2

Young pts w/ unilateral disc edema —>

Answer 2

Papillitis

Question 3

20’s-50’s females —>

Answer 3

Optic Neuritis

Question 4

Mature age patients —>

Answer 4

RVO, AION

Question 5

3 Major Signs of IIH

Answer 5

1. HA
2. TVO
3. Pulse Synchronous Tinnitus

Question 6

Early signs of papilledema

Answer 6

Hyperemia (due to capillary dilation)

Question 7

What meds/supps increase ICP?

Answer 7

Vit A and tetracyclines

Question 8

IIH: rare in children younger than ___ and adults over ___

Answer 8

3 and 60

Question 9

What CN palsies may occur with IIH?

Answer 9

6 & 7

Question 10

What are subtle signs visible by MRI?

Answer 10

1. Periooptic subarachnoid space distension
2. Empty sella

Question 11

Why perform MRV?

Answer 11

R/O venous sinus thrombosis

Question 12

Elevated LP opening pressures

Answer 12

Adults: ≥ 250 mm
Kids: ≥ 280 mm

Question 13

T/F: CSF composition is NORMAL in IIH pts

Answer 13

TRUE

Question 14

MRI Features of IIH (9)

Answer 14

Highly suggestive:
1. Flattening of posterior globe
2. Optic nerve head protrusion
3. Distention of ON sheaths
4. Tortuously of ON
5. Transverse venous sinus stenosis

Less suggestive:
6. Empty sella
7. Cerebellar tonsillar herniation
8. Meningoceles
9. CSF leaks

Question 15

IIH Treatment

Answer 15

Acetazolamide + Weight loss