Normal pressure hydrocephalus (NPH): CSF infusion test

Written and reviewed by Dr Ibrahim Imam, Consultant Neurologist. Last reviewed .

Normal pressure hydrocephalus (NPH): CSF infusion test. This measures the outflow resistance in NPH. Fully referenced neurology checklist.

Mechanism

  • This measures the outflow resistance in NPH
  • It also assesses shunt patency

Procedure

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Outcome measures

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Indicators of a positive CSF infusion test

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References

  1. Kahlon B, Sundbärg G, Rehncrona S. Comparison between the lumbar infusion and CSF tap tests to predict outcome after shunt surgery in suspected normal pressure hydrocephalus. JNNP 2002; 73:721-726. 
  2. Ishikawa M; Guideline Committe for Idiopathic Normal Pressure Hydrocephalus, Japanese Society of Normal Pressure Hydrocephalus. Clinical guidelines for idiopathic normal pressure hydrocephalus. Neurol Med Chir (Tokyo) 2004; 44:222-223.
  3. Sinha R, Morgan JA, Wawrzynski JR, et al. Comparison of ventricular drain location and infusion test in hydrocephalus. Acta Neurol Scand 2017; 135:291-301.

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