Artery Research

Volume 24, Issue C, December 2018, Pages 85 - 85

P20 BRACHIAL AND RADIAL SYSTOLIC BLOOD PRESSURE ARE NOT THE SAME: POTENTIAL IMPLICATIONS FOR VALIDATION PROTOCOLS INCLUDING BRACHIAL CUFF DEVICES AND WRIST-BASED WEARABLES

Authors
Matthew Armstrong1, Martin Schultz1, Dean Picone1, James Sharman1, Nathan Dwyer2, Philip Roberts-Thomson2, Andrew Black2
1Menzies Institute for Medical Research, University of Tasmania, Australia
2Royal Hobart Hospital, Australia
Available Online 4 December 2018.
DOI
10.1016/j.artres.2018.10.073How to use a DOI?
Abstract

Introduction: Radial intra-arterial blood pressure (BP) is sometimes used as the reference standard for validation of brachial cuff BP devices, and there is an emerging ‘wearables’ market seeking to measure BP at the wrist. However, brachial systolic BP may not be a good representation of the radial systolic BP, and this could have implications for appropriate BP validation protocols. This study sought to determine the difference between brachial and radial systolic BP.

Methods: Intra-arterial BP was measured consecutively at the brachial and radial arteries in 168 participants undergoing coronary angiography (aged 62 ± 10 years, 69% male). Intra-arterial BP recordings were made via fluid filled catheter according to guideline recommendations.

Results: Brachial systolic BP was lower than radial systolic BP (136.5 vs 143.9 mmHg; p<0.001). Only 40% of participants had a brachial systolic BP within ±5 mmHg to radial systolic BP (138.1 and 138.5 mmHg, p = 0.15). Additionally, 25% and 17% of participants had systolic BP differences of 5 to 10 mmHg (132.7 and 139.9 mmHg respectively, p < 0.001) and 10 to 15 mmHg (132.2 and 144.4 mmHg respectively; p < 0.001). A further 18% had systolic BP differences >15 mmHg (140.3 and 161.3 mmHg; p < 0.001).

Conclusion: Radial systolic BP is not representative of brachial systolic BP, with the majority of participants having a systolic BP difference greater than 5 mmHg between brachial and radial arteries. Therefore, if validation testing of BP devices is performed with intra-arterial BP as the reference standard, this should be undertaken at the same site as the brachial cuff or wrist based wearable device.

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Journal
Artery Research
Volume-Issue
24 - C
Pages
85 - 85
Publication Date
2018/12/04
ISSN (Online)
1876-4401
ISSN (Print)
1872-9312
DOI
10.1016/j.artres.2018.10.073How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - JOUR
AU  - Matthew Armstrong
AU  - Martin Schultz
AU  - Dean Picone
AU  - James Sharman
AU  - Nathan Dwyer
AU  - Philip Roberts-Thomson
AU  - Andrew Black
PY  - 2018
DA  - 2018/12/04
TI  - P20 BRACHIAL AND RADIAL SYSTOLIC BLOOD PRESSURE ARE NOT THE SAME: POTENTIAL IMPLICATIONS FOR VALIDATION PROTOCOLS INCLUDING BRACHIAL CUFF DEVICES AND WRIST-BASED WEARABLES
JO  - Artery Research
SP  - 85
EP  - 85
VL  - 24
IS  - C
SN  - 1876-4401
UR  - https://doi.org/10.1016/j.artres.2018.10.073
DO  - 10.1016/j.artres.2018.10.073
ID  - Armstrong2018
ER  -