BMJ Case Reports 2016; doi:10.1136/bcr-2016-217138

Assessment of response to cerebrospinal fluid tap test for normal pressure hydrocephalus: how we do it

  1. Lorraine Kyne
  1. Medicine for the Older Person, Mater Misericordiae University Hospital, Dublin, Ireland
  1. Correspondence to Dr Christopher Nnaemeka Osuafor, chrisosuafor{at}
  • Accepted 1 August 2016
  • Published 16 August 2016


A 65-year-old woman was referred to our medicine for the older person day hospital with a 2-year history of frequent falls and progressive memory decline. On examination, she was cautious in her gait, slightly leaning to her left side and very unsteady on turning. MRI of her brain revealed prominence of third and lateral ventricles and increased surrounding signal intensity suggestive of normal pressure hydrocephalus (NPH) (figure 1). She consented to a video-recorded cerebrospinal fluid (CSF) …

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