Differentiate the Source and Site of Intracranial Pressure Measurements Using More Precise Nomenclature

Dai Wai M. Olson, Stefany Ortega Peréz, Jonathan Ramsay, Chethan P. Venkatasubba Rao, Jose I. Suarez, Molly McNett, Venkatesh Aiyagari

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


Background: Intracranial pressure (ICP) monitoring is fundamental for neurocritical care patient management. For many years, ventricular and parenchymal devices have been available for this aim. The purpose of this paper is to review the published literature comparing ICP recordings via an intraventricular catheter or an intraparenchymal (brain tissue) catheter. Methods: Literature search of Medline, CINAHL, Embase, and Scopus was performed in which manuscripts discussed both ICP monitoring via an intraventricular catheter and ICP monitoring through intraparenchymal (brain tissue) catheter. Keywords and MeSH terms used include critical care, intracranial pressure, ICP, monitoring, epidural catheter, intracranial hypertension, ventriculostomy, ventricular drain, external ventricular drain, and physiologic monitoring. Results: Eleven articles met inclusion criteria. The published literature shows differences in simultaneously recorded ICP between the intraventricular and intraparenchymal sites. Conclusions: We propose two new terms that more accurately identify the anatomical site of recording for the referenced ICP: intracranial pressure ventricular (ICP-v) and intracranial pressure brain tissue (ICP-bt). Further delineation of the conventional term “ICP” into these two new terms will clarify the difference between ICP-v and ICP-bt and their respective measurement locations.

Original languageEnglish (US)
Pages (from-to)239-243
Number of pages5
JournalNeurocritical Care
Issue number2
StatePublished - Apr 15 2019


  • Brain injuries
  • Intracranial pressure
  • Neurocritical care
  • Neurophysiological monitoring

ASJC Scopus subject areas

  • Clinical Neurology
  • Critical Care and Intensive Care Medicine


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