CSF & Hydrocephalus

Question 1

what is hydrocephalus?

Answer 1

condition where there is excess CSF within the intracranial and inter ventricular spaces

Question 2

where does CSF exit the fourth ventricle?

Answer 2

two foramina of Luschka

single foramen Magendie

Question 3

where is CSF resorped?

Answer 3

back into the venous system through numerous arachnoid granulations along the dural venous sinuses

Question 4

communicating hydrocephalus?

Answer 4

problem with CSF resorption

Question 5

Non-communicating hydrocephalus?

Answer 5

physical obstruction to the normal flow of CSF before it leaves the ventricles

Question 6

potential causes of NCH?

Answer 6

aqueduct stenosis, tumours, cysts, infection, haemorrhage

Question 7

main treatment for hydrocephalus?

Answer 7

Surgery
External ventricular drain
Ventriculo-peritoneal shunt
Ventriculostomy

Question 8

what is normal pressure hydrocephalus?

Answer 8

rare/preventable cause of dementia

Question 9

symptoms in NPH?

Answer 9

urinary incontinence

gait disturbance

Question 10

management of NPH?

Answer 10

CT/MRI
Lumbar puncture (often see symptoms improve)

Question 11

what order do symptoms improve in NPH?

Answer 11

gait>incontinence>memory

Question 12

normal manometry pressures in lumbar puncture?

Answer 12

0-5 standing

8-20 lying

Question 13

cautions in lumbar puncture?

Answer 13

coning

chiari malformations