Estimation of aortic pulse wave velocity based on waveform decomposition of central aortic pressure waveform

2021 ◽  
Author(s):  
Wenyan Liu ◽  
Yang Yao ◽  
Jinzhong Yang ◽  
Daiyuan Song ◽  
Yuelan Zhang ◽  
...  
Keyword(s):  
Pulse Wave Velocity ◽  
Wave Velocity ◽  
Pulse Wave ◽  
Aortic Pressure ◽  
Aortic Pulse Wave Velocity ◽  
Pressure Waveform ◽  
Central Aortic Pressure

scholarly journals Effects of Arterial Stiffness, Pulse Wave Velocity, and Wave Reflections on the Central Aortic Pressure Waveform

2008 ◽  
Vol 10 (4) ◽  
pp. 295-303 ◽  
Author(s):  
Wilmer W. Nichols ◽  
Scott J. Denardo ◽  
Ian B. Wilkinson ◽  
Carmel M. McEniery ◽  
John Cockcroft ◽  
...  
Keyword(s):  
Arterial Stiffness ◽  
Pulse Wave Velocity ◽  
Wave Velocity ◽  
Pulse Wave ◽  
Aortic Pressure ◽  
Pressure Waveform ◽  
Wave Reflections ◽  
Central Aortic Pressure

STRUCTURAL AND FUNCTIONAL VASCULAR CHANGES IN HIGH NORMAL ARTERIAL PRESSURE

2020 ◽  
Vol 23 (1) ◽  
pp. 7-11
Author(s):  
P. Nikolov
Keyword(s):  
Arterial Pressure ◽  
Pulse Wave Velocity ◽  
Wave Velocity ◽  
Pulse Pressure ◽  
Pulse Wave ◽  
Augmentation Index ◽  
Aortic Pressure ◽  
Large Arteries ◽  
Central Aortic Pressure ◽  
Significant Difference

The PURPUSE of the present study is changes in function and structure of large arteries in individuals with High Normal Arterial Pressure (HNAP) to be established. MATERIAL and METHODS: Structural and functional changes in the large arteries were investigated in 80 individuals with HNAP and in 45 with optimal arterial pressure (OAP). In terms of arterial stiffness, pulse wave velocity (PWV), augmentation index (AI), central aortic pressure (CAP), pulse pressure (PP) were followed up in HNAP group. Intima media thickness (IMT), flow-induced vasodilatation (FMD), ankle-brachial index (ABI) were also studied. RESULTS: Significantly increased values of pulse wave velocity, augmentation index, central aortic pressure, pulse pressure are reported in the HNAP group. In terms of IMT and ABI, being in the reference interval, there is no significant difference between HNAP and OAP groups. The calculated cardiovascular risk (CVR) in both groups is low. CONCLUSION: Significantly higher values of pulse wave velocity, augmentation index, central aortic pressure and pulse pressure in the HNAP group are reported.

scholarly journals Central Aortic Pressure Influences Pulse Wave Velocity

Hypertension ◽  
2002 ◽  
Vol 40 (6) ◽  
Author(s):  
Andrew Zambanini ◽  
Simon A. McG Thom ◽  
Alun D. Hughes ◽  
Kim H. Parker
Keyword(s):  
Pulse Wave Velocity ◽  
Wave Velocity ◽  
Pulse Wave ◽  
Aortic Pressure ◽  
Central Aortic Pressure

scholarly journals Pulse wave velocity and central aortic pressure in systolic blood pressure intervention trial participants

PLoS ONE ◽  
2018 ◽  
Vol 13 (9) ◽  
pp. e0203305 ◽  
Author(s):  
Mark A. Supiano ◽  
Laura Lovato ◽  
Walter T. Ambrosius ◽  
Jeffrey Bates ◽  
Srinivasan Beddhu ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Pulse Wave Velocity ◽  
Systolic Blood Pressure ◽  
Wave Velocity ◽  
Pulse Wave ◽  
Aortic Pressure ◽  
Intervention Trial ◽  
Central Aortic Pressure ◽  
Trial Participants

Is 24 hour central aortic pressure superior to single measurement of central aortic pressure in well controlled hypertensive patients

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
N Georgieva ◽  
A Borizanova-Petkova ◽  
E Kinova ◽  
A Goudev
Keyword(s):  
Arterial Stiffness ◽  
Pulse Wave Velocity ◽  
Wave Velocity ◽  
Pulse Wave ◽  
Systolic Pressure ◽  
Aortic Pressure ◽  
Single Measurement ◽  
Hypertensive Patients ◽  
Non Invasive ◽  
Central Aortic Pressure

Abstract Background Non-invasive measurements of 24 h ambulatory central aortic systolic pressure (24hCASP) is now feasible method than single measurement of CASP. There is growing interest in CASP as cardiovascular risk marker beyond conventional brachial blood pressure (BP). Pulse wave velocity estimates arterial stiffness, whereas CASP is representative of the BP in major organs. Purpose To evaluate non- invasive parameters for arterial stiffness using oscillometric method and to compare 24hCASP with single measurement of CASP in well-controlled hypertensive patients to detect target organ damage (TOD). Methods A total 95 patients (57±14 years) with hypertension, were separated in two groups: 22 patients with normal EA/Ees ratio (Arterial elastance (EA) and ventricular elastance (Ees)) and 73 hypertensive patients with decrease EA/Ees ratio, marker for ventriculo-arterial coupling. EA and Ees were calculated as and – systolic pressure/stroke volume and end-systolic pressure/end-systolic volume. Parameters for arterial stiffness – 24hCASP, ambulatory central systolic pressure (CASP), 24-hour pulse wave velocity (PWV24h) and ambulatory PWV were measured non-invasively with oscillometric method by Mobil-O-graph PWA. Results Statistically significant differences in parameters of vascular stiffness were found in patients with normal ventriculo-arterial coupling in comparison with disturbed EA/Ees: 24hCASP (107.64±9.19 vs. 116.64±16.7 mm Hg, p=0.02), CAP (117.45±9.26 vs. 128.42±16.15 mm Hg, p<0.0001). There were no statistically significant differences in PWV and PWV24h. Multiple regression analysis demonstrated that CAP (B=−0.264 p=0.003; 95% CI: −0.003–0.014) is independent predictor of TOD in hypertensive patients, than 24 hour central aortic pressure. Conclusion There is no superiority of 24hCASP than single measurment of CASP. CASP could predict preclinical damage and cardiovascular outcome. Funding Acknowledgement Type of funding source: None

Computation of Aortic Pulse Wave Velocity and Aortic Extensibility from Pressure Gradient Measurements

1975 ◽  
Vol 53 (5) ◽  
pp. 940-946 ◽  
Author(s):  
Alain C. Lapointe ◽  
Fernand A. Roberge ◽  
Réginald A. Nadeau ◽  
Pierre S. Thiry ◽  
Gérard M. Tremblay
Keyword(s):  
Pulse Wave Velocity ◽  
Phase Velocity ◽  
Pressure Gradient ◽  
Wave Velocity ◽  
Pulse Wave ◽  
Time Derivative ◽  
Aortic Pressure ◽  
Aortic Pulse Wave Velocity ◽  
Time Shift ◽  
Aortic Valves

This study is concerned with the computation of aortic pulse wave velocity based on simultaneous recordings of the aortic pressure gradient and first-time derivative of aortic pressure. These variables were recorded by means of a double-lumen catheter introduced in the aorta of four anesthetized closed chest dogs, and connected to critically damped manometer systems. Results of aortic pulse wave velocity were then compared: (i) to the true phase velocity obtained from spectra of apparent phase velocity, and (ii) to the pulse wave velocity computed from the time shift between maximum slopes of the pressure wave. From the aortic valves to 37 cm down the aortic trunk, pulse wave velocity increased from 410–460 cm/s to approximately 600–800 cm/s. Based on the wave propagation equation presented of Bramwell and Hill (Bramwell, J. C, and Hill, A. V. 1922. Proc. R. Soc. 93, 298–306), volumetric extensibility coefficients were computed from pulse wave velocity data. Results indicated that, from the aortic valves to 37 cm down the aorta, the mean volumetric extensibility decreased from 0.43–0.56% ΔV/cm H2O to 0.16–0.25% ΔV/cm H2O (1 cm H2O = 94.1 N/m2).

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