Difference between revisions of "Idiopathic intracranial hypertension"

(us for papilledema)
(change in bullets)
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#[[Headache]] (worse in AM / with manuvers increasing ICP)
#[[Headache]] (worse in AM / with manuvers increasing ICP)
#Papilledema (optic atrophy/vision loss)
#Papilledema (optic atrophy/vision loss)
*can be visualized with ultrasound
##can be visualized with ultrasound
#[[Neuro Exam]] frequently normal
#[[Neuro Exam]] frequently normal

Revision as of 20:58, 27 July 2014


  • Also known as pseudotumor cerebri
  • May be due to impaired arachnoid villi absorption
  • Associated with OCPs, vitamin A, tetracycline, and thyroid disorders


  1. CT scan (negative)
  2. LP (Opening pressure >25)

Clinical Features

  1. Headache
  2. Nausea and Vomiting
  3. Vision blurring


  1. Young, obese women
  2. Headache (worse in AM / with manuvers increasing ICP)
  3. Papilledema (optic atrophy/vision loss)
    1. can be visualized with ultrasound
  4. Neuro Exam frequently normal


  1. Aneurysm rupture and Subarachnoid Hemorrhage
  2. Brain tumor
  3. Encephalitis
  4. Head Injury
  5. Hydrocephalus (increased fluid around the brain)
  6. Hypertensive brain hemorrhage
  7. Intraventricular hemorrhage
  8. Meningitis
  9. Subdural Hematoma
  10. Status epilepticus
  11. Stroke


  1. Repeat LPs (decrease CSF pressure)
  2. Acetazolamide 500mg BID
  3. Weight loss
  4. CSF Shunt
  5. Optic nerve sheath fenestration


  • Admit for:
    • Severe pain
    • Focal findings
    • Vision changes
  • Otherwise, discharge w/ ophtho f/u for formal visual field monitoring