Search Results - "Avolio, A. P."

An analysis of the relationship between central aortic and peripheral upper limb pressure waves in man by Karamanoglu, M, O'Rourke, M F, Avolio, A P, Kelly, R P

“…Amplification of the pressure pulse between central and peripheral arteries renders pressure values in the upper limb an inaccurate measure of ascending aortic…”
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Methods and devices for measuring arterial compliance in humans by Pannier, Bruno M, Avolio, Alberto P, Hoeks, Arnold, Mancia, Giuseppe, Takazawa, Kenji

“…This review analyses methods and devices used worldwide to evaluate the arterial stiffness. Three main methodologies are based upon analysis of pulse transit…”
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Effect of Ambient Lighting and Skin Tone on Estimation of Heart Rate and Pulse Transit Time from Video Plethysmography by Shirbani, F., Hui, N., Tan, I., Butlin, M., Avolio, A. P.

“…Video-based photoplethysmography (vPPG) enables remote and contactless detection of the peripheral pulse of blood flow. This provides a potential mean to…”
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Pressure wave propagation in a multibranched model of the human upper limb by Karamanoglu, M, Gallagher, D E, Avolio, A P, O'Rourke, M F

“…The influence of the large arteries and the peripheral load on pressure wave propagation in the human upper limb was investigated in an anatomically realistic…”
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Progressive vascular remodelling, endothelial dysfunction and stiffness in mesenteric resistance arteries in a rodent model of chronic kidney disease by Quek, K.J, Boyd, R, Ameer, O.Z, Zangerl, B, Butlin, M, Murphy, T.V, Avolio, A.P, Phillips, J.K

“…Abstract Chronic kidney disease (CKD) and hypertension are co-morbid conditions both associated with altered resistance artery structure, biomechanics and…”
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Effect of aging on aortic morphology in populations with high and low prevalence of hypertension and atherosclerosis. Comparison between occidental and Chinese communities by Virmani, R, Avolio, AP, Mergner, WJ, Robinowitz, M, Herderick, EE, Cornhill, JF, Guo, SY, Liu, TH, Ou, DY, O'Rourke, M

“…A comparative morphologic study of aortic changes with aging was conducted in different populations in an attempt to separate the effects of hypertension and…”
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Effects of aging on arterial distensibility in populations with high and low prevalence of hypertension: comparison between urban and rural communities in China by AVOLIO, A. P, DENG FA-QUAN, LI WEI-QIANG, LUO YAO-FEI, HUANG ZHEN-DONG, XING LIAN-FEN, ÓROURKE, M. F

“…Arterial pulse wave velocity, an established index of arterial distensibility, was measured together with arterial pressure in a group of 524 normal subjects…”
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Effects of aging on changing arterial compliance and left ventricular load in a northern Chinese urban community by Avolio, A P, Chen, S G, Wang, R P, Zhang, C L, Li, M F, O'Rourke, M F

“…Pulse wave velocity (PWV) was measured by means of transcutaneous Doppler techniques in the aorta, right arm, and right leg of 480 normal subjects of both…”
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Potential effects of systematic errors in intraocular pressure measurements on screening for ocular hypertension by Turner, M J, Graham, S L, Avolio, A P, Mitchell, P

“…Aim Raised intraocular pressure (IOP) increases the risk of glaucoma. Eye-care professionals measure IOP to screen for ocular hypertension (OHT) (IOP>21 mm Hg)…”
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Functional origin of reflected pressure waves in a multibranched model of the human arterial system by Karamanoglu, M, Gallagher, D E, Avolio, A P, O'Rourke, M F

“…The effects of wave travel and wave reflection were simulated in a mathematical model of the whole arterial tree consisting of 142 uniform transmission line…”
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Nitroglycerin has more favourable effects on left ventricular afterload than apparent from measurement of pressure in a peripheral artery by Kelly, R P, Gibbs, H H, O'Rourke, M F, Daley, J E, Mang, K, Morgan, J J, Avolio, A P

“…Nitroglycerin (0.3 mg) was administered sublingually to 14 patients undergoing cardiac catheterization, and pressure waves compared in the ascending aorta and…”
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Multi-branched model of the human arterial system by Avolio, A P

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Characterisation of structural changes in the arterial elastic matrix by a new fractal feature : directional fractal curve by JIANG, C. F, AVOLIO, A. P

“…A new fractal feature, the Directional Fractal Curve (DFC), defined over an arc of 180 and composed of 90 fractal dimensions determined at intervals of arc of…”
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Nebivolol Increases Arterial Distensibility In Vivo by McEniery, Carmel M, Schmitt, Matthias, Qasem, Ahmad, Webb, David J, Avolio, Alberto P, Wilkinson, Ian B, Cockcroft, John R

“…Arterial stiffness is a key determinant of cardiovascular risk in hypertensive patients. β-Blockers appear to be less effective than other drugs in improving…”
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4.1: Acute, Sympathetic-Independent Increases in Heart Rate by Way of Cardiac Pacing Raises Aortic and Brachial Blood Pressure with Increased Cardiac Output and Arterial Stiffness by Tan, I., Barin, E., Avolio, A. P., Butlin, M.

“…Objective Whilst the effects of heart rate (HR) on the cardiovascular system have been studied cross-sectionally or during exercise, the effect of acute,…”
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Effects of age on ventricular-vascular coupling by Nichols, Wilmer W., O'Rourke, Michael F., Avolio, Albert P., Yaginuma, Toshio, Murgo, Joseph P., Pepine, Carl J., Conti, C.Richard

“…The effects of age on the interrelation between the physical properties of the arterial tree (aortic input impedance) and left ventricular performance (cardiac…”
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P2.14: Comparison of Age-Related Central Aortic Blood Pressure Parameters Using Two Sphygmocor Techniques by Sabahi, Z., Butlin, M., Yeung, C., Avolio, A. P., Barin, E.

“…Background Central aortic blood pressure (CBP) parameters are increasingly proved to be stronger predictors of cardiovascular outcomes than peripheral blood…”
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P4.07: Effects of Anti-Hypertensive Treatment on Functional and Structural Components of Large Artery Stiffness in a Rodent Model of Type I Diabetes by Salum, E., Avolio, A. P., Kals, J., Kampus, P., Butlin, M.

“…Objectives Diabetes is associated with cardiovascular risk and increased arterial stiffness. Whether large artery stiffness is associated with diabetes per se…”
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P2.11: The Impact of Atrial Fibrillation and Pacemakers on Accuracy of Central Blood Pressure Measured by a Novel Cuff-Based Technique by Sabahi, Z., Butlin, M., Yeung, C., Avolio, A. P., Barin, E.

“…Background Non-invasive measurement of Central Blood Pressure (CBP) in the clinic setting is the advantage of the validated, tonometer-based SphygmoCor device…”
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P4.16: Effect of Denervation on Viscoelastic Properties of Large Arteries in Polycystic Kidney Disease Rats by Kouchaki, Z., Lindesay, G., Butlin, M., Phillips, J. K., Avolio, A. P.

“…Objectives Arterial elasticity is determined by passive mechanical properties of wall components modulated by neurogenic effects on smooth muscle. We assessed…”
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