P7.18 VALIDATION TESTING FOR THE NON-INVASIVE MEASUREMENT OF AORTIC RESERVOIR CHARACTERISTICS FROM BRACHIAL CUFF OSCILLOMERIC PRESSURE WAVEFORMS
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- 10.1016/j.artres.2015.10.321How to use a DOI?
- Abstract
Background: Aortic reservoir pressure (RP) and excess pressure (XSP) derived non-invasively from radial tonometry independently predict cardiovascular events and mortality. However, whether RP and XSP can be derived non-invasively from brachial oscillometric cuff pressure waveforms has never been undertaken. This study sought to determine the validity of measuring aortic reservoir characteristics from non-invasive oscillometric cuff waveforms.
Methods: 97 participants (aged 62±11 years, 67% male) undergoing coronary angiography had simultaneous measurement (n=247) of ascending aortic pressure (via fluid-filled catheter) and oscillometric brachial cuff pressure (via SphygmoCor XCEL). RP and XSP derived non-invasively from cuff waveforms were compared with invasive measures.
Results: There were small mean differences between non-invasive and invasive methods for both RP (1.42±18.16 mmHg) and XSP (−1.45±25.52 mmHg), with significant corrleations observed between methods (p<0.001 both).
Conclusion: Aortic reservoir characteristics of RP and XSP can be derived non-invasively from oscillometric brachial pressure waveforms, thus providing a mean for widespread research and clinical use.
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TY - JOUR AU - Xiaoqing Peng* AU - Martin Schultz AU - Justin Davies AU - Dean Picone AU - Andrew Black AU - Nathan Dwyer AU - Phil Roberts-Thomson AU - James Sharman PY - 2015 DA - 2015/11/23 TI - P7.18 VALIDATION TESTING FOR THE NON-INVASIVE MEASUREMENT OF AORTIC RESERVOIR CHARACTERISTICS FROM BRACHIAL CUFF OSCILLOMERIC PRESSURE WAVEFORMS JO - Artery Research SP - 34 EP - 34 VL - 12 IS - C SN - 1876-4401 UR - https://doi.org/10.1016/j.artres.2015.10.321 DO - 10.1016/j.artres.2015.10.321 ID - Peng*2015 ER -