Publications in Scientific Journals:

D. Nunan, S. Wassertheurer, D. Lasserson, B. Hametner, S. Flemming, A. Ward, C. Heneghan:
"Assessment of Central Haemomodynamics from a Brachial Cuff in a Community Setting";
BMC Cardiovascular Disorders, 48 (2012), 1471-2261/12/48; 1 - 9.

English abstract:
Large artery stiffening and wave reflections are independent predictors of adverse events. To date,
their assessment has been limited to specialised techniques and settings. A new, more practical method allowing
assessment of central blood pressure from waveforms recorded using a conventional automated oscillometric
monitor has recently been validated in laboratory settings. However, the feasibility of this method in a community
based setting has not been assessed.
One-off peripheral and central haemodynamic (systolic and diastolic blood pressure (BP) and pulse
pressure) and wave reflection parameters (augmentation pressure (AP) and index, AIx) were obtained from 1,903
volunteers in an Austrian community setting using a transfer-function like method (ARCSolver algorithm) and from
waveforms recorded with a regular oscillometric cuff. We assessed these parameters for known differences and
associations according to gender and age deciles from <30 years to
>80 years in the whole population and a
subset with a systolic BP < 140 mmHg.
We obtained 1,793 measures of peripheral and central BP, PP and augmentation parameters. Age and
gender associations with central haemodynamic and augmentation parameters reflected those previously
established from reference standard non-invasive techniques under specialised settings. Findings were the same for
patients with a systolic BP below 140 mmHg (i.e. normotensive). Lower values for AIx in the current study are
possibly due to differences in sampling rates, detection frequency and/or averaging procedures and to lower
numbers of volunteers in younger age groups.
A novel transfer-function like algorithm, using brachial cuff-based waveform recordings, provides robust and feasible estimates of central systolic pressure and augmentation in community-based settings.
Central pressure, Augmentation, Hypertension, Primary care, Validation

Created from the Publication Database of the Vienna University of Technology.