| Validity and Reliability of Central Blood Pressure Estimated by Upper Arm Oscillometric Cuff Pressure. | |
| | |
MedLine Citation:
|
PMID: 22223041 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
BackgroundNoninvasive central blood pressure (BP) independently predicts mortality, but current methods are operator-dependent, requiring skill to obtain quality recordings. The aims of this study were first, to determine the validity of an automatic, upper arm oscillometric cuff method for estimating central BP (O(CBP)) by comparison with the noninvasive reference standard of radial tonometry (T(CBP)). Second, we determined the intratest and intertest reliability of O(CBP).MethodsTo assess validity, central BP was estimated by O(CBP) (Pulsecor R6.5B monitor) and compared with T(CBP) (SphygmoCor) in 47 participants free from cardiovascular disease (aged 57 ± 9 years) in supine, seated, and standing positions. Brachial mean arterial pressure (MAP) and diastolic BP (DBP) from the O(CBP) device were used to calibrate in both devices. Duplicate measures were recorded in each position on the same day to assess intratest reliability, and participants returned within 10 ± 7 days for repeat measurements to assess intertest reliability.ResultsThere was a strong intraclass correlation (ICC = 0.987, P < 0.001) and small mean difference (1.2 ± 2.2 mm Hg) for central systolic BP (SBP) determined by O(CBP) compared with T(CBP). Ninety-six percent of all comparisons (n = 495 acceptable recordings) were within 5 mm Hg. With respect to reliability, there were strong correlations but higher limits of agreement for the intratest (ICC = 0.975, P < 0.001, mean difference 0.6 ± 4.5 mm Hg) and intertest (ICC = 0.895, P < 0.001, mean difference 4.3 ± 8.0 mm Hg) comparisons.ConclusionsEstimation of central SBP using cuff oscillometry is comparable to radial tonometry and has good reproducibility. As a noninvasive, relatively operator-independent method, O(CBP) may be as useful as T(CBP) for estimating central BP in clinical practice.American Journal of Hypertension (2012). doi:10.1038/ajh.2011.238. |
| | |
Authors:
|
Rachel E D Climie; Martin G Schultz; Sonja B Nikolic; Kiran D K Ahuja; James W Fell; James E Sharman |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2012-1-05 |
Journal Detail:
|
Title: American journal of hypertension Volume: - ISSN: 1941-7225 ISO Abbreviation: - Publication Date: 2012 Jan |
Date Detail:
|
Created Date: 2012-1-6 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 8803676 Medline TA: Am J Hypertens Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
|
1] Menzies Research Institute Tasmania, University of Tasmania, Hobart, Australia [2] School of Human Life Sciences, University of Tasmania, Launceston, Australia. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Nifedipine Ameliorates Ischemia-Induced Revascularization in Diet-Induced Obese Mice.
Next Document: Cardiovascular and Renal Manifestations of Glutathione Depletion Induced by Buthionine Sulfoximine.