Idiopathic intracranial hypertension: Difference between revisions

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==Background==
==Background==
*Impaired arachnoid villi absorption
*Also known as pseudotumor cerebri
*Also known as "Pseudotumor cerebri (PTC)" or "Benign intracranial hypertension (BIH)"
*May be due to impaired arachnoid villi absorption
*Associated with OCPs, vitamin A, tetracycline, and thyroid disorders


==Diagnosis==
==Diagnosis==
#Young, obese females
#Young, obese women
#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)
#Neuro exam frequently normal  
#Neuro exam frequently normal  


==Work-Up==
==Work-Up==
# CT scan (negative)
#CT scan (negative)
# LP (CSF pressure 25-40)  
#LP (CSF pressure 25-40)  


==Treatment==
==Treatment==
# Repeate LPs (decrease CSF pressure)
#Repeate LPs (decrease CSF pressure)
# Diamox
#Acetazolamide 250mg BID
# Weight loss
#Weight loss
# Shunt
#CSF Shunt
# Optic nerve sheath fenestration  
#Optic nerve sheath fenestration  


==Disposition==
==Disposition==
Admit for:
*Admit for:
# Severe pain
**Severe pain
# Focal findings
**Focal findings
# Vision changes
**Vision changes
 
==Source==
Tintinalli


[[Category:Neuro]]
[[Category:Neuro]]

Revision as of 05:01, 1 October 2011

Background

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

Diagnosis

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

Work-Up

  1. CT scan (negative)
  2. LP (CSF pressure 25-40)

Treatment

  1. Repeate LPs (decrease CSF pressure)
  2. Acetazolamide 250mg BID
  3. Weight loss
  4. CSF Shunt
  5. Optic nerve sheath fenestration

Disposition

  • Admit for:
    • Severe pain
    • Focal findings
    • Vision changes

Source

Tintinalli