P2.14 COMPARISON OF AGE-RELATED CENTRAL AORTIC BLOOD PRESSURE PARAMETERS USING TWO SPHYGMOCOR TECHNIQUES

Z. Sabahi; M. Butlin; C. Yeung; A.P. Avolio; E. Barin

doi:10.1016/j.artres.2013.10.076

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Volume 7, Issue 3-4, September 2013, Pages 123 - 123

P2.14 COMPARISON OF AGE-RELATED CENTRAL AORTIC BLOOD PRESSURE PARAMETERS USING TWO SPHYGMOCOR TECHNIQUES

Authors

Z. Sabahi¹, M. Butlin², C. Yeung¹, A.P. Avolio², E. Barin¹

¹Macquarie University Hospital and Clinic, Sydney, Australia

²Australian School of Advanced Medicine, Macquarie University, Sydney, Australia

Available Online 11 November 2013.

DOI

10.1016/j.artres.2013.10.076 How to use a DOI?

Abstract

Background. Central aortic blood pressure (CBP) parameters are increasingly proved to be stronger predictors of cardiovascular outcomes than peripheral blood pressure parameters. Aortic stiffness, which increases with age, alters these parameters. The aim of this study was to compare the CBP parameters measured by two SphygmoCor techniques: tonometric (Classic) and cuff-based (XCEL) with respect to age.

Methods: 186 individuals (mean age 68±45 years, range 21–93 years, 97 males) from general cardiac clinic patients were recruited. Tonometric and cuff-based assessment of central systolic blood pressure (cSBP), central diastolic blood pressure (cDBP), central pulse pressure (cPP) and augmentation index normalised to a heart rate of 75 beats/min (AIx75) was made in a randomized fashion after a period of seated acclimatization. Statistical analysis was performed by means of Analysis of Covariance (ANCOVA) with respect to device and age, with an interaction term between device and age to detect age dependent differences between devices.

Results. All parameters changed significantly with age (p<0.001). There was no significant difference between all parameters estimated by the two techniques (Table). The interaction term of device and age was not significant for any parameter, indicating that the devices did not differ with respect to age.

Conclusion. The new cuff-based SphygmoCor technique used for evaluation of CBP parameters in a clinical environment is a convenient and accurate proxy for the previous tonometric technique regardless of patient age.

					p
Parameter	Device	Slope	Intercept	Device	Age	Age*device
cSBP/age	Classic	0.28±0.07	97±5	0.49	<0.001	0.58
(mmHg/yr)	XCEL	0.23±0.06	101±4	0.49	<0.001	0.58
cDBP/age	Classic	−0.16±0.04	82±3	0.66	<0.001	0.99
(mmHg/yr)	XCEL	−0.16±0.04	84±3	0.66	<0.001	0.99
cPP/age	Classic	0.45±0.06	14±4	0.55	<0.001	0.42
(mmHg/yr)	XCEL	0.39±0.05	17±3	0.55	<0.001	0.42
AIx75/age	Classic	0.22±0.04	6±3	0.13	<0.001	0.38
(%/yr)	XCEL	0.16±0.06	14±4	0.13	<0.001	0.38

P2.15 Withdrawn by author

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Journal: Artery Research
Volume-Issue: 7 - 3-4
Pages: 123 - 123
Publication Date: 2013/11/11
ISSN (Online): 1876-4401
ISSN (Print): 1872-9312
DOI: 10.1016/j.artres.2013.10.076 How to use a DOI?
Open Access: This is an open access article distributed under the CC BY-NC license.

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ris enw bib

TY  - JOUR
AU  - Z. Sabahi
AU  - M. Butlin
AU  - C. Yeung
AU  - A.P. Avolio
AU  - E. Barin
PY  - 2013
DA  - 2013/11/11
TI  - P2.14 COMPARISON OF AGE-RELATED CENTRAL AORTIC BLOOD PRESSURE PARAMETERS USING TWO SPHYGMOCOR TECHNIQUES
JO  - Artery Research
SP  - 123
EP  - 123
VL  - 7
IS  - 3-4
SN  - 1876-4401
UR  - https://doi.org/10.1016/j.artres.2013.10.076
DO  - 10.1016/j.artres.2013.10.076
ID  - Sabahi2013
ER  -

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