Document Detail

Comparison of noninvasive oscillometric and intra-arterial blood pressure measurements in hyperacute stroke.
MedLine Citation:
PMID:  17496464     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES: This study aims to compare automatic oscillometric blood pressure recordings with simultaneous direct intra-arterial blood pressure measurements in hyperacute stroke patients to test the accuracy of oscillometric readings. METHODS: A total of 51 first-ever stroke patients underwent simultaneous noninvasive automatic oscillometric and intra-arterial blood pressure monitoring within 3 h of ictus. Casual blood pressure was measured in both arms using a standard mercury sphygmomanometer on hospital admission. Patients who received antihypertensive medication during the blood pressure monitoring were excluded. RESULTS: The estimation of systolic blood pressure (SBP) using oscillometric recordings underestimated direct radial artery SBP by 9.7 mmHg (95% confidence interval: 6.5-13.0, P<0.001). In contrast, an upward bias of 5.6 mmHg (95% confidence interval: 3.5-7.7, P<0.001) was documented when noninvasive diastolic blood pressure (DBP) recordings were compared with intra-arterial DBP recordings. For SBP and DBP, the Pearson correlation coefficients between noninvasive and intra-arterial recordings were 0.854 and 0.832, respectively. When the study population was stratified according to SBP bands (group A: SBP<or=160 mmHg; group B: SBP>160 mmHg and SBP<or=180 mmHg, group C: SBP>180 mmHg), higher mean DeltaSBP (intra-arterial SBP-oscillometric SBP) levels were documented in group C (+19.8 mmHg, 95% confidence intervals: 12.2-27.4) when compared with groups B (+8.5 mmHg, 95% confidence intervals: 2.7-14.5; P=0.025) and A (+5.9 mmHg, 95% confidence intervals: 1.8-9.9; P=0.002). CONCLUSION: Noninvasive automatic oscillometric BP measurements underestimate direct SBP recordings and overestimate direct DBP readings in acute stroke. The magnitude of the discrepancy between intra-arterial and oscillometric SBP recordings is even more prominent in patients with critically elevated SBP levels.
Efstathios Manios; Konstantinos Vemmos; Georgios Tsivgoulis; Gerasimos Barlas; Eleni Koroboki; Koroboki Eleni; Konstantinos Spengos; Nikolaos Zakopoulos
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Blood pressure monitoring     Volume:  12     ISSN:  1359-5237     ISO Abbreviation:  Blood Press Monit     Publication Date:  2007 Jun 
Date Detail:
Created Date:  2007-05-14     Completed Date:  2007-08-02     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  9606438     Medline TA:  Blood Press Monit     Country:  England    
Other Details:
Languages:  eng     Pagination:  149-56     Citation Subset:  IM    
Department of Clinical Therapeutics Alexandra Hospital, University of Athens, Athens, Greece.
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MeSH Terms
Aged, 80 and over
Blood Pressure*
Blood Pressure Determination / instrumentation,  methods
Blood Pressure Monitoring, Ambulatory*
Blood Pressure Monitors*
Middle Aged
Oscillometry / instrumentation*
Stroke / physiopathology*
Erratum In:
Blood Press Monit. 2007 Oct;12(5):349
Note: Eleni, Koroboki [corrected to Koroboki, Eleni]

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

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