Picone, DS and Schultz, MG and Otahal, P and Aakhus, S and Al-Jumaily, AM and Black, JA and Bos, WJ and Chambers, JB and Chen, CH and Cheng, HM and Cremer, A and Davies, JE and Dwyer, N and Gould, BA and Hughes, AD and Lacy, PS and Laugesen, E and Liang, F and Melamed, R and Muecke, S and Ohte, N and Okada, S and Omboni, S and Ott, C and Peng, X and Pereira, T and Pucci, G and Rajani, R and Roberts-Thomson, P and Rossen, NB and Sueta, D and Sinha, MD and Schmieder, RE and Smulyan, H and Srikanth, VK and Stewart, R and Stouffer, GA and Takazawa, K and Wang, J and Westerhof, BE and Weber, F and Weber, T and Williams, B and Yamada, H and Yamamoto, E and Sharman, JE, Accuracy of cuff-measured blood pressure: Systematic reviews and meta-analyses, Journal of the American College of Cardiology, 70, (5) pp. 572-586. ISSN 0735-1097 (2017) [Refereed Article]
Objectives: This comprehensive analysis determined the accuracy of cuff BP and the consequent effect on BP classification compared with intra-arterial BP reference standards.
Methods: Three individual participant data meta-analyses were conducted among studies (from the 1950s to 2016) that measured intra-arterial aortic BP, intra-arterial brachial BP, and cuff BP.
Results: A total of 74 studies with 3,073 participants were included. Intra-arterial brachial systolic blood pressure (SBP) was higher than aortic values (8.0 mm Hg; 95% confidence interval [CI]: 5.9 to 10.1 mm Hg; p < 0.0001) and intra-arterial brachial diastolic BP was lower than aortic values (-1.0 mm Hg; 95% CI: -2.0 to -0.1 mm Hg; p = 0.038). Cuff BP underestimated intra-arterial brachial SBP (-5.7 mm Hg; 95% CI: -8.0 to -3.5 mm Hg; p < 0.0001) but overestimated intra-arterial diastolic BP (5.5 mm Hg; 95% CI: 3.5 to 7.5 mm Hg; p < 0.0001). Cuff and intra-arterial aortic SBP showed a small mean difference (0.3 mm Hg; 95% CI: -1.5 to 2.1 mm Hg; p = 0.77) but poor agreement (mean absolute difference 8.0 mm Hg; 95% CI: 7.1 to 8.9 mm Hg). Concordance between BP classification using the Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure cuff BP (normal, pre-HTN, and HTN stages 1 and 2) compared with intra-arterial brachial BP was 60%, 50%, 53%, and 80%, and using intra-arterial aortic BP was 79%, 57%, 52%, and 76%, respectively. Using revised intra-arterial thresholds based on cuff BP percentile rank, concordance between BP classification using cuff BP compared with intra-arterial brachial BP was 71%, 66%, 52%, and 76%, and using intra-arterial aortic BP was 74%, 61%, 56%, and 65%, respectively.
Conclusions: Cuff BP has variable accuracy for measuring either brachial or aortic intra-arterial BP, and this adversely influences correct BP classification. These findings indicate that stronger accuracy standards for BP devices may improve cardiovascular risk management.
|Item Type:||Refereed Article|
|Keywords:||blood pressure determination, hemodynamics, sphygmomanometers|
|Research Division:||Medical and Health Sciences|
|Research Group:||Cardiorespiratory Medicine and Haematology|
|Research Field:||Cardiology (incl. Cardiovascular Diseases)|
|Objective Group:||Clinical Health (Organs, Diseases and Abnormal Conditions)|
|Objective Field:||Cardiovascular System and Diseases|
|Author:||Picone, DS (Mr Dean Picone)|
|Author:||Schultz, MG (Dr Martin Schultz)|
|Author:||Otahal, P (Mr Petr Otahal)|
|Author:||Black, JA (Professor John Black)|
|Author:||Dwyer, N (Dr Nathan Dwyer)|
|Author:||Peng, X (Miss Xiaoqing Peng)|
|Author:||Roberts-Thomson, P (Dr Philip Roberts-Thomson)|
|Author:||Srikanth, VK (Dr Velandai Srikanth)|
|Author:||Sharman, JE (Professor James Sharman)|
|Web of Science® Times Cited:||4|
|Deposited By:||Menzies Institute for Medical Research|
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