Difference between revisions of "Idiopathic intracranial hypertension"

(Background)
Line 1: Line 1:
 
==Background==
 
==Background==
Impaired arachnoid villi absorption
+
*Impaired arachnoid villi absorption
 +
*Also known as "Pseudotumor cerebri (PTC)" or "Benign intracranial hypertension (BIH)"
  
 
==Diagnosis==
 
==Diagnosis==

Revision as of 20:13, 14 July 2011

Background

  • Impaired arachnoid villi absorption
  • Also known as "Pseudotumor cerebri (PTC)" or "Benign intracranial hypertension (BIH)"

Diagnosis

  1. Young, obese females
  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. Diamox
  3. Weight loss
  4. Shunt
  5. Optic nerve sheath fenestration

Disposition

Admit for:

  1. Severe pain
  2. Focal findings
  3. Vision changes