Read Validity and reliability of central blood pressure estimated by upper arm oscillometric cuff pressure. - RE Climie Affiliation: Menzies Research Institute Tasmania, University of Tasmania, Hobart, Australia.; MG Schultz; SB Nikolic; KD Ahuja; JW Fell; All authors | PDF Online

Read Validity and reliability of central blood pressure estimated by upper arm oscillometric cuff pressure. - RE Climie Affiliation: Menzies Research Institute Tasmania, University of Tasmania, Hobart, Australia.; MG Schultz; SB Nikolic; KD Ahuja; JW Fell; All authors | PDF

Document Type: Article All Authors / Contributors: RE Climie Affiliation: Menzies Research Institute Tasmania, University of Tasmania, Hobart, Australia.; MG Schultz; SB Nikolic; KD Ahuja; JW Fell; JE Sharman ISSN:0895-7061 Language Note: English Unique Identifier: 780686089 Awards: Abstract: BACKGROUND: Noninvasive 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). METHODS: To 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. RESULTS: There 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. CONCLUSIONS: Estimation 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.

Title : Validity and reliability of central blood pressure estimated by upper arm oscillometric cuff pressure.
Author : RE Climie Affiliation: Menzies Research Institute Tasmania, University of Tasmania, Hobart, Australia.; MG Schultz; SB Nikolic; KD Ahuja; JW Fell; All authors
Language : en
Rating :
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Type : PDF, ePub, Kindle
Uploaded : Apr 12, 2021

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