Artery Research

Volume 4, Issue 4, December 2010, Pages 171 - 171

P8.08 A METHOD COMPARISON OF CENTRAL BLOOD PRESSURE MEASUREMENTS BY PULSECOR AND SPHYGMOCOR DEVICES

Authors
C.M. Park1, K. March1, A.K. Ghosh1, T. Tillin1, J. Mayet1, A. Lowe2, N. Chaturvedi1, A.D. Hughes1
1Imperial College London, London, United Kingdom
2Pulsecor Limited, Auckland, New Zealand
Available Online 2 December 2010.
DOI
10.1016/j.artres.2010.10.090How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Background: Estimated aortic (or central) systolic pressure (cSBP) differs from peripheral pressure and may be a better predictor of cardiovascular events. SphygmoCor® (AtCor, Sydney, Australia) uses applanation tonometery to derive cSBP by application of a generalised transfer function to radial pulse waveforms. PulseCor® (PulseCor, Auckland, New Zealand) is a new device that estimates cSBP from suprasystolic brachial cuff waveforms. We compared blood pressures measured by both devices.

Methods: 30 individuals (67.2±5yrs) underwent consecutive radial (SphygmoCor) and brachial (PulseCor) waveform measures. Method comparison was performed by Bland Altman analysis in Stata 11.0.

Results: Measurements made by the two devices were similar (Table 1). cSBP estimated by PulseCor tended to be higher than SphygmoCor, although the difference was within the American Association for the Advancement of Medical Instrumentation (AAMI) standards (< 5mmHg and SDdiff was <8mmHg). Bland Altman analysis showed no systematic bias between devices across the range of blood pressures measured.

Variable PulseCor SphygmoCor Difference LOA
Brachial SBP, mmHg 140.7 (13.1) 140.5 (13.0) 0.2 (1.4) −2.4, 2.9
Brachial DBP, mmHg 84.7 (9.3) 84.7 (9.3) 0.0 (0.0) 0.0, 0.0
HR, bpm 65.4 (16.1) 64.6 (14.3) 0.8 (5.7) −10.3, 11.9
Central SBP, mmHg 135.0 (12.8) 131.4 (13.0) 3.6 (4.3) −4.9, 12.0
Central DBP, mmHg 85.8 (9.5) 85.4 (9.7) 0.3 (0.7) −1.1, 1.7

DBP, diastolic blood pressure; HR, heart rate; SBP, systolic blood pressure; LOA, limits of agreement. Data are means (SD).

Conclusions: PulseCor and Sphygmocor give similar estimates of central blood pressures. The slightly higher cSBP measured by PulseCor could relate to the use of brachial rather than radial pressure to calibrate SphygmoCor.

Journal
Artery Research
Volume-Issue
4 - 4
Pages
171 - 171
Publication Date
2010/12/02
ISSN (Online)
1876-4401
ISSN (Print)
1872-9312
DOI
10.1016/j.artres.2010.10.090How 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  - C.M. Park
AU  - K. March
AU  - A.K. Ghosh
AU  - T. Tillin
AU  - J. Mayet
AU  - A. Lowe
AU  - N. Chaturvedi
AU  - A.D. Hughes
PY  - 2010
DA  - 2010/12/02
TI  - P8.08 A METHOD COMPARISON OF CENTRAL BLOOD PRESSURE MEASUREMENTS BY PULSECOR AND SPHYGMOCOR DEVICES
JO  - Artery Research
SP  - 171
EP  - 171
VL  - 4
IS  - 4
SN  - 1876-4401
UR  - https://doi.org/10.1016/j.artres.2010.10.090
DO  - 10.1016/j.artres.2010.10.090
ID  - Park2010
ER  -