Document Detail


Intra-arterial pressure measurement in neonates: dynamic response requirements.
MedLine Citation:
PMID:  7749357     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A computer simulation of a catheter manometer system was used to quantify measurement errors in neonatal blood pressure parameters. Accurate intra-arterial pressure recordings of 21 critically ill newborns were fed into this simulated system. The dynamic characteristics, natural frequency and damping coefficient, were varied from 2.5 to 60 Hz and from 0.1 to 1.4, respectively. As a result, errors in systolic, diastolic and pulse arterial pressure were obtained as a function of natural frequency and damping coefficient. Iso-error curves for 2%, 5% and 10% were constructed. Using these curves, the maximum inaccuracy of any neonatal catheter manometer system can be determined and used in the clinical setting.
Authors:
H R van Genderingen; M Gevers; W W Hack
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Physiological measurement     Volume:  16     ISSN:  0967-3334     ISO Abbreviation:  Physiol Meas     Publication Date:  1995 Feb 
Date Detail:
Created Date:  1995-06-22     Completed Date:  1995-06-22     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  9306921     Medline TA:  Physiol Meas     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  55-61     Citation Subset:  IM    
Affiliation:
Department of Clinical Physics and Engineering, Free University Hospital, Amsterdam, The Netherlands.
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MeSH Terms
Descriptor/Qualifier:
Blood Pressure Determination / instrumentation,  methods*
Catheters, Indwelling
Computer Simulation
Gestational Age
Humans
Infant, Newborn / physiology*
Radial Artery

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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