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Relationship between blood pressure repeatedly measured by a wrist-cuff oscillometric wearable blood pressure monitoring device and left ventricular mass index in working hypertensive patients

Kario, K; Tomitani, N; Morimoto, T; Kanegae, H; Lacy, P; Williams, B; (2022) Relationship between blood pressure repeatedly measured by a wrist-cuff oscillometric wearable blood pressure monitoring device and left ventricular mass index in working hypertensive patients. Hypertension Research , 45 pp. 87-96. 10.1038/s41440-021-00758-3. Green open access

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Abstract

This study sought to evaluate the relationship between blood pressure (BP) taken by a new wrist-cuff oscillometric wearable BP monitoring device and left ventricular mass index measured by cardiac magnetic resonance imaging (cMRI-LVMI) in 50 hypertensive patients (mean age 60.5 ± 8.9 years, 92.0% men, 96% treated for hypertension) with regular employment. Participants were asked to self-measure their wearable BPs twice in the morning and evening under a guideline-recommended standardized home BP measurement, and once each at five predetermined times and any additional time points under an ambulatory condition for a maximum of 7 days. In total, 2105 wearable BP measurements (home BP: 747 [morning: 409, evening: 338], ambulatory condition: 1358 [worksite: 942]) were collected over 5.5 ± 1.2 days. The average of all wearable systolic BP (SBP) readings (129.8 ± 11.0 mmHg) was weakly correlated with cMRI-LVMI (r = 0.265, p = 0.063). Morning home wearable SBP average (128.5 ± 13.8 mmHg) was significantly correlated with cMRI-LVMI (r = 0.378, p = 0.013), but ambulatory wearable SBP average (132.5 ± 12.7 mmHg) was not (r = 0.215, p = 0.135). The averages of the highest three values of all wearable SBPs (153.3 ± 13.9 mmHg) and ambulatory wearable SBPs (152.9 ± 13.9 mmHg) were 16 mmHg higher than that of the morning home wearable SBPs (137.0 ± 15.9 mmHg). Those peak values were significantly correlated with cMRI-LVMI (r = 0.320, p = 0.023; r = 0.310, p = 0.029; r = 0.451, p = 0.002, respectively). In conclusion, an increased number of wearable BP measurements, which could detect individual peak BP, might add to the clinical value of these measurements as a complement to the guideline-recommended home BP measurements, but further studies are needed to confirm these findings.

Type: Article
Title: Relationship between blood pressure repeatedly measured by a wrist-cuff oscillometric wearable blood pressure monitoring device and left ventricular mass index in working hypertensive patients
Open access status: An open access version is available from UCL Discovery
DOI: 10.1038/s41440-021-00758-3
Publisher version: https://doi.org/10.1038/s41440-021-00758-3
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Wristwatch-type wearable BP monitoring, Left ventricular mass index, HeartGuide
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Cardiovascular Science
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Cardiovascular Science > Population Science and Experimental Medicine
URI: https://discovery.ucl.ac.uk/id/eprint/10138105
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