Artery Research

Volume 6, Issue 4, December 2012, Pages 172 - 172

P2.30 DOES OCCLUSION OF THE BRACHIAL ARTERY CAUSE LOCAL OSCILLATION OF ARTERIAL PRESSURE?

Authors
O. Korolkova1, K.H. Parker1, J.E. Davies2, A.D. Hughes2, J.H. Siggers1
1Departement of Bioengineering, Imperial College London, London, United Kingdom
2National Heart and Lung Institute, Imperial College London, London, United Kingdom
Available Online 17 November 2012.
DOI
10.1016/j.artres.2012.09.111How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

One-dimensional (1D) models are useful to study pressure and flow waves in large arteries in cases where clinical measurements are not available. Using a simplified 1D model (1) we have modelled the pressure waveform in the brachial artery with and without occlusion, which is relevant to non-invasive measurement of blood pressure with cuff-based devices. The results show that occlusion of the brachial artery leads to superposed high frequency oscillations in local brachial blood pressure of up to 10mmHg (Fig.). A modelling study of brachial occlusion done independently by a group from Swansea University (2) has also shown similar results.

Preliminary data made with a fluid-filled catheter by collaborators in New Zealand (unpublished data) show much smaller pressure fluctuations during cuff occlusion, but the use of a fluid-filled catheter may have damped out the relatively high frequency waves that are predicted. Therefore, measurements of blood pressure using a high-fidelity catheter are being made in patients undergoing routine cardiac catheterization. Pressure waveforms recorded in the brachial, subclavian arteries and the ascending aorta with and without brachial artery occlusion are compared to the predictions of the 1D models.

Figure 1

Predicted pressure waveforms for an occluded and non-occluded brachial artery.

(1)J Alastuey, KH Parker, J Peiro, and SJ Sherwin, J Eng Math, Vol. 64, 2009, pp. 331-51.
(2)JP Mynard and P Nithiarasu, Comm. Num. Meth. Engg, Vol. 24, 2008, pp. 367-417.
Journal
Artery Research
Volume-Issue
6 - 4
Pages
172 - 172
Publication Date
2012/11/17
ISSN (Online)
1876-4401
ISSN (Print)
1872-9312
DOI
10.1016/j.artres.2012.09.111How 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  - O. Korolkova
AU  - K.H. Parker
AU  - J.E. Davies
AU  - A.D. Hughes
AU  - J.H. Siggers
PY  - 2012
DA  - 2012/11/17
TI  - P2.30 DOES OCCLUSION OF THE BRACHIAL ARTERY CAUSE LOCAL OSCILLATION OF ARTERIAL PRESSURE?
JO  - Artery Research
SP  - 172
EP  - 172
VL  - 6
IS  - 4
SN  - 1876-4401
UR  - https://doi.org/10.1016/j.artres.2012.09.111
DO  - 10.1016/j.artres.2012.09.111
ID  - Korolkova2012
ER  -