Artery Research

Volume 16, Issue C, December 2016, Pages 98 - 98

PO-35 FIRST IN MAN MEASUREMENT OF ARTERIAL STIFFNESS USING A CONNECTED BATHROOM SCALE: CALIBRATION AGAINST SPHYGMOCOR

Authors
Pierre Boutouyrie, Hakim Khettab, David Campo, Roger Yu, Nadine Buard
AP-HP, Pharmacology Unit, Hôpital Européen Georges Pompidou, INSERM, U970, Paris Cardiovascular Research Center—PARCC, University Paris Descartes, Sorbonne Paris Cité, Paris, Withings, Issy le Moulineaux, France
Available Online 24 November 2016.
DOI
10.1016/j.artres.2016.08.038How to use a DOI?
Abstract

Background: Measurement of arterial stiffness (AS) is still considered difficult. We developed a non- invasive technique to assess AS from a connected bathroom scale, based on ballistocardiography (BCG) and impedance plethysmography (IPG).

Methods: We included 192 subjects and patients, 106 for calibration study (cal), 86 for validation study (val), 33% hypertensives, mean age 48±17 years, 48% women. The scale pulse transit time (WS- PTT) was calculated as the difference between BCG systolic signals and IPG blood flow in the foot. Distance was estimated from body height and PWV was calculated. Carotid to femoral transit time (CF-PTT) was measured using SphygmoCor. Spearman and robust multivariate regressions were used.

Results: The WS-PTT correlated well with CF-PTT with R=0.73 in pooled population (cal 0.79, val 0.66). WS-PWV correlated with CF-PWV with R=0.76 (cal 0.80, val 0.70). The standard deviation of difference was 1.39 m/s with a bias of 0.25 m/s compared with CF-PWV. Correlations of WS-PWV with age and blood pressure were similar (R= 0.72 and 0.59, resp.) to those of CF-PWV (R=0.67 and 0.61, resp.). These good correlations were non-trivial given the differences in wave paths, the fact that measurements are made in orthostatic position and totally investigator-free.

Conclusion: We show in two distinct populations that a simple user-oriented instrument such as a connected bathroom scale can estimate arterial stiffness with accuracy close to healthcare-oriented systems. Because these devices will be used by the general population, the availability of arterial stiffness data on very large, non-medicalized populations will change our management of well-being and health.

Open Access
This is an open access article distributed under the CC BY-NC license.

Journal
Artery Research
Volume-Issue
16 - C
Pages
98 - 98
Publication Date
2016/11/24
ISSN (Online)
1876-4401
ISSN (Print)
1872-9312
DOI
10.1016/j.artres.2016.08.038How 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  - Pierre Boutouyrie
AU  - Hakim Khettab
AU  - David Campo
AU  - Roger Yu
AU  - Nadine Buard
PY  - 2016
DA  - 2016/11/24
TI  - PO-35 FIRST IN MAN MEASUREMENT OF ARTERIAL STIFFNESS USING A CONNECTED BATHROOM SCALE: CALIBRATION AGAINST SPHYGMOCOR
JO  - Artery Research
SP  - 98
EP  - 98
VL  - 16
IS  - C
SN  - 1876-4401
UR  - https://doi.org/10.1016/j.artres.2016.08.038
DO  - 10.1016/j.artres.2016.08.038
ID  - Boutouyrie2016
ER  -