Document Detail


In-field validation of automatic blood pressure measuring devices.
MedLine Citation:
PMID:  10673729     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The method for rapid evaluation of automatic blood pressure (BP) measurement devices (READ) is based on numerous BP measurements at rest and during a standardised postural challenge in a small number of subjects with a wide range of BPs. The present study proposes additional parameters of the READ for in-field validation of automatic BP measurement devices. BP measurements were done in supine position for 10 min followed by head-up tilt for 30 min and again supine for 10 min. BPs were determined simultaneously by automatic (AU) and mercury sphygmomanometric (MS) measurements on the same arm. The BP differences DeltaBP:AU-MS were calculated. Three units of the Colin BP-8800 and the Datex-Engstrom Cardiocaptrade mark II were evaluated. Based on DeltaBP(AU-MS), the grade of accuracy, aberration patterns and correlates of accuracy were assessed for each unit. Per unit, an average of 121 measurements were done, every BP category being met in >/=20 MS measurements. In general, the AU systolic BP values were higher than MS systolic BP values (mean systolic DeltaBP = 1.26 +/- 17.1 mm Hg) and AU diastolic BP values were lower than MS diastolic BP values (mean diastolic DeltaBP = -12.31 +/- 7.8 mm Hg). All units classified into category D of the British Hypertension Society grading system and exhibited inconsistent aberration patterns, making design of correction formulas impractical. Inaccuracy of the instruments was independent on mode of measurement, posture, magnitude of the BP and heart rate, early or late measurements from beginning of the head-up tilt test, and prolonged use of the unit. The READ permitted to identify rapidly the degree of accuracy of automatic BP measuring devices. Identification of the aberration pattern of an instrument could be the basis for calculating equations for correction of the measured BP. Further studies will show which parameters of the READ may expose specific defects of the instruments. Journal of Human Hypertension (2000) 14, 37-42.
Authors:
J E Naschitz; L Gaitini; L Loewenstein; D Keren; E Zuckerman; A Tamir; D Yeshurun
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Journal of human hypertension     Volume:  14     ISSN:  0950-9240     ISO Abbreviation:  J Hum Hypertens     Publication Date:  2000 Jan 
Date Detail:
Created Date:  2000-03-15     Completed Date:  2000-03-15     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8811625     Medline TA:  J Hum Hypertens     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  37-42     Citation Subset:  IM; S    
Affiliation:
Department of Internal Medicine A, Bnai Zion Medical Center and the Bruce Rappaport Faculty of Medicine, Technion Israel Institute of Technology, Haifa, Israel.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Automation
Blood Pressure / physiology
Blood Pressure Determination / instrumentation*
Equipment Design
Female
Humans
Male
Middle Aged
Posture
Reproducibility of Results
Sphygmomanometers / standards*
Tilt-Table Test

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


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