Document Detail

Evaluation of the Dinamap continuous blood pressure monitor.
MedLine Citation:
PMID:  3415794     Owner:  NLM     Status:  MEDLINE    
The validity of the Dinamap automated oscillometric blood pressure monitor, an instrument frequently used for continuous monitoring in intensive care settings, was evaluated in comparison to two standard methods of blood pressure measurement. Oscillometric monitoring was compared to random-zero sphygmomanometry in 28 ambulatory subjects, using the instruments in a random order. The oscillometric monitor overestimated random-zero systolic pressure (mean difference = 5.7 mm Hg; P less than 0.001), but did not differ in diastolic pressure (difference = 1.3 mm Hg, P greater than 0.3). Correlation (r) between methods was 0.94 for systolic pressure and 0.83 for diastolic pressure. Repeatability of sequential measures did not differ between methods. To evaluate the oscillometric monitor in the intraoperative setting, it was used simultaneously with a radial artery catheter to measure blood pressure in 14 patients undergoing peripheral vascular or other major surgery. The oscillometric monitor underestimated intra-arterial systolic pressure (mean difference = -9.4 mm Hg; P less than 0.002), but overestimated intraarterial diastolic pressure (difference = 5.7 mm Hg; P less than 0.005). There was no difference in mean arterial pressure (P greater than 0.1). Correlation between methods was 0.88 for systolic, 0.71 for diastolic, and 0.79 for mean arterial pressure. The oscillometric instrument had a sensitivity of 63% and specificity of 97% in detecting intraarterial systolic pressures of 160 mm Hg or greater, and a sensitivity of 89% and specificity of 89% in detecting intraarterial systolic pressures of 100 mm Hg or less. These findings demonstrate differences between the oscillometric monitor and other standard methods of blood pressure measurement.(ABSTRACT TRUNCATED AT 250 WORDS)
T A Manolio; S C Fishel; C Beattie; J Torres; R Christopherson; W T Merritt; P K Whelton
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  American journal of hypertension     Volume:  1     ISSN:  0895-7061     ISO Abbreviation:  Am. J. Hypertens.     Publication Date:  1988 Jul 
Date Detail:
Created Date:  1988-10-19     Completed Date:  1988-10-19     Revised Date:  2009-02-24    
Medline Journal Info:
Nlm Unique ID:  8803676     Medline TA:  Am J Hypertens     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  161S-167S     Citation Subset:  IM    
Department of Medicine, Johns Hopkins Hospital, Baltimore, Maryland.
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MeSH Terms
Blood Pressure*
Evaluation Studies as Topic
Manometry / methods
Monitoring, Physiologic / instrumentation*,  methods
Regression Analysis
Grant Support

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

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