| Erroneous intracranial pressure measurements from simultaneous pressure monitoring and ventricular drainage catheters. | |
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MedLine Citation:
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PMID: 16960297 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The objective of this report is to highlight the potential for false pressure measurements from systems that combine intracranial pressure (ICP) measurement and ventricular drainage. If the ports of the drain become blocked to the extent that they present a high resistance to cerebrospinal fluid flow, then a significant pressure gradient between the inside and outside of the catheter may be established. Thus, any intracatheter transducer will faithfully record a pressure much lower than true ICP. This holds true for catheter-tip transducers when the transducer lies inside the catheter. In the absence of flow, however, pressures will equalize; therefore, accurate measurements may be taken if the drain is temporarily closed. We model this situation and provide simulations of expected measurements in such situations; these compare well to observed clinical readings. |
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Authors:
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A A Birch; C A Eynon; D Schley |
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Publication Detail:
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Type: Case Reports; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Neurocritical care Volume: 5 ISSN: 1541-6933 ISO Abbreviation: Neurocrit Care Publication Date: 2006 |
Date Detail:
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Created Date: 2006-09-08 Completed Date: 2006-10-26 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 101156086 Medline TA: Neurocrit Care Country: United States |
Other Details:
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Languages: eng Pagination: 51-4 Citation Subset: IM |
Affiliation:
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Department of Medical Physics and Bioengineering, Southampton General Hospital, Southhampton, Hampshire, UK. tony.birch@suht.swest.nhs.uk |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Brain Injuries / complications Catheters, Indwelling Cerebral Ventricles / surgery Cerebrospinal Fluid Diagnostic Errors* Equipment Failure Humans Intracranial Hypertension / complications, diagnosis*, surgery Male Suction |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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