Normal pressure hydrocephalus

Revision as of 18:44, 24 July 2016 by Neil.m.young (talk | contribs) (Text replacement - "==Diagnosis==" to "==Evaluation==")

Background

  • Possible reversible cause of dementia
  • CSF buildup in the ventricles leading to increased intracranial pressure with edema of the periventricular white matter and corona radiata
    • Sacral motor nerve fibers that produce gait instability; incontinence ensues when compressed

Clinical Features

  • Gait disturbance
  • Memory loss
  • Incontinence

Differential Diagnosis

  • Alzheimers
  • Stroke
  • Parkinson's Disease
  • Electrolyte abnormality
  • Malignancy
  • Uremic encephalopathy
  • Hydrocephalus ex vacuo (diffuse cerebral atrophy on CT)

Evaluation

  • CBC
  • Chem 7
  • LP: normal opening pressure
    • Symptom improvement supports diagnosis[1]
  • CT brain

Management

  • Additional work up warranted for surgical candidate[2]
  • Assessment for Surgical CSF shunting

Disposition

Also See

References