| A novel approach to office blood pressure measurement: 30-minute office blood pressure vs daytime ambulatory blood pressure. | |
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MedLine Citation:
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PMID: 21403139 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: Current office blood pressure measurement (OBPM) is often not executed according to guidelines and cannot prevent the white-coat effect. Serial, automated, oscillometric OBPM has the potential to overcome both these problems. We therefore developed a 30-minute OBPM method that we compared with daytime ambulatory blood pressure. METHODS: Patients referred to a primary care diagnostic center for 24-hour ambulatory blood pressure monitoring (ABPM) had their blood pressure measured using the same validated ABPM device for both ABPM and 30-minute OBPMs. During 30-minute OBPM, blood pressure was measured automatically every 5 minutes with the patient sitting alone in a quiet room. The mean 30-minute OBPM (based on t = 5 to t = 30 minutes) was compared with mean daytime ABPM using paired t tests and the approach described by Bland and Altman on method comparison. RESULTS: We analyzed data from 84 patients (mean age 57 years; 61% female). Systolic and diastolic blood pressures differed from 0 to 2 mm Hg (95% confidence interval, -2 to 2 mm Hg and from 0 to 3 mm Hg) between mean 30-minute OBPM and daytime ABPM, respectively. The limits of agreement were between -19 and 19 mm Hg for systolic and -10 and 13 mm Hg for diastolic blood pressures. Both 30-minute OBPM and daytime ABPM classified normotension, white-coat hypertension, masked hypertension, and sustained hypertension equally. CONCLUSIONS: The 30-minute OBPM appears to agree well with daytime ABPM and has the potential to detect white-coat and masked hypertension. This finding makes 30-minute OBPM a promising new method to determine blood pressure during diagnosis and follow-up of patients with elevated blood pressures. |
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Authors:
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Mark C van der Wel; Iris E Buunk; Chris van Weel; Theo A B M Thien; J Carel Bakx |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Validation Studies |
Journal Detail:
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Title: Annals of family medicine Volume: 9 ISSN: 1544-1717 ISO Abbreviation: Ann Fam Med Publication Date: 2011 Mar-Apr |
Date Detail:
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Created Date: 2011-03-15 Completed Date: 2011-07-14 Revised Date: 2011-09-13 |
Medline Journal Info:
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Nlm Unique ID: 101167762 Medline TA: Ann Fam Med Country: United States |
Other Details:
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Languages: eng Pagination: 128-35 Citation Subset: IM |
Affiliation:
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Department of Primary and Community Care, Radboud University Nijmegen Medical Centre, The Netherlands. m.vanderwel@elg.umcn.nl |
| Data Bank Information | |
Bank Name/Acc. No.:
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ClinicalTrials.gov/NCT00457483 |
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| MeSH Terms | |
Descriptor/Qualifier:
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Algorithms Blood Pressure Blood Pressure Monitoring, Ambulatory / instrumentation, methods* Female Health Status Indicators* Humans Hypertension / diagnosis* Male Middle Aged Netherlands Statistics as Topic Time Factors |
| Comments/Corrections | |
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