What is normal pressure hydrocephalus?

Normal pressure hydrocephalus, or NPH, is a condition that affects the drainage of cerebrospinal fluid around the brain. Symptoms can include: 

  • Problems with walking
  • Memory loss and cognitive impairment
  • Loss of bladder control

How is NPH diagnosed?

Normal pressure hydrocephalus can be misdiagnosed as Alzheimer’s disease or other neurological conditions due to similar symptoms. For this reason, REVERT will share best practice among the project partners and explore new ways of improving diagnostic accuracy. Currently, the following tests may be used to diagnose NPH:

  • Gait (walking) tests
  • Cognitive assessment
  • Brain imaging (MRI or CT scan)
  • Lumbar puncture, drainage and/or infusion tests
 Image credit: Ève Barlier, 2021

How is NPH treated?

The symptoms of NPH can potentially be reversed by shunt surgery. In this procedure, a neurosurgeon implants a small, thin tube with a valve (the shunt) into the brain to drain the excess cerebrospinal fluid into another part of the body, usually the abdomen.

To learn more about normal pressure hydrocephalus, you may find the following pages helpful:

In English

In French

Go to our Resources page for links and further reading about normal pressure hydrocephalus.