Estimation of maximal oxygen consumption and heart rate recovery using the Tecumseh sub-maximal step test and their relationship to cardiovascular risk factors
Maximum aerobic capacity (VO2max) is associated with lower cardiovascular and total mortality. Step tests can be used to provide an estimate of (VO2max) in epidemiological or home-based studies. We compared different methods of estimation of VO2max and heart rate recovery and evaluated the relationship of these estimates with cardiovascular risk factors. (Source: Artery Research)
Source: Artery Research - March 11, 2017 Category: Cardiology Authors: Alun D. Hughes, Nish Chaturvedi Source Type: research
Noninvasive evaluation of varying pulse pressures in vivo using brachial sphymomanometry, applanation tonometry, and Pulse Wave Ultrasound Manometry
The routine assessment and monitoring of hypertension may benefit from the evaluation of arterial pulse pressure (PP) at more central locations (e.g. the aorta) rather solely at the brachial artery. Pulse Wave Ultrasound Manometry (PWUM) was previously developed by our group to provide direct, noninvasive aortic PP measurements using ultrasound elasticity imaging. Using PWUM, radial applanation tonometry, and brachial sphygmomanometry, this study investigated the feasibility of noninvasively obtaining direct PP measurements at multiple arterial locations in normotensive, pre-hypertensive, and hypertensive human subjects. (...
Source: Artery Research - March 8, 2017 Category: Cardiology Authors: Ronny X. Li, Ada Ip, Elena Sanz-Miralles, Elisa E. Konofagou Source Type: research
Viscoelastic mechanical measurement of the healthy and atherosclerotic human coronary arteries using DIC technique
This study was aimed to set up a new relaxation viscoelastic tests to characterize the QLV parameters of the healthy and atherosclerotic human coronary arteries. (Source: Artery Research)
Source: Artery Research - March 7, 2017 Category: Cardiology Authors: Alireza Karimi, Ahmad Shojaei, Reza Razaghi Source Type: research
Editorial Board
(Source: Artery Research)
Source: Artery Research - March 1, 2017 Category: Cardiology Source Type: research
Differences in photoplethysmography morphological features and feature time series between two opposite emotions: Happiness and sadness
It has been well established that change in emotion state is associated with the change in physiological signals. This paper aimed to investigate the differences of finger photoplethysmography (PPG) morphological features and feature time series between happiness and sadness emotion states. Fifty-three volunteers were enrolled. Finger PPG signals were recorded under two emotion states with a random measurement order (first happiness emotion measurement then sadness or reverse). Seven morphological features were extracted, including three temporal features (T, T1 and T2), three area features (A, A1 and A2) and one amplitude...
Source: Artery Research - February 21, 2017 Category: Cardiology Authors: Fei Li, Licai Yang, Hongyu Shi, Chengyu Liu Source Type: research
Retinal vascular calibers in contemporary patients with chronic systemic inflammatory diseases: The Greek REtinal Microcirculation (GREM) study
Chronic systemic inflammatory diseases (CSID) are associated with increased cardiovascular morbidity and mortality. Widening of retinal venular calibers has been independently associated with systemic inflammation and cardiovascular risk in the general population. We aimed to test the hypothesis that retinal vessel calibers are altered in a population with rheumatoid arthritis (RA), systemic lupus erythematosus (SLE) and spondyloarthropathies (SpA) compared to a reference group (RG). (Source: Artery Research)
Source: Artery Research - February 20, 2017 Category: Cardiology Authors: Evaggelia K. Aissopou, Athanase D. Protogerou, Theodore G. Papaioannou, Maria Tektonidou, Nikolaos Tentolouris, Panagiotis G. Theodossiadis, Coen D.A. Stehouwer, George D. Kitas, Petros P. Sfikakis Source Type: research
High origin of radial artery from the axillary artery: Case report
The axillary artery is the main artery supplying the shoulder region and is clinically important. In the present case we report an arterial variation of the left upper extremity of a 65 year-old female cadaver. The radial artery arose from the axillary artery 2.5 cm below the anterior humeral circumflex artery and above the teres major muscle. It first coursed along the medial aspect of the arm, then it passed laterally between the biceps brachii and the brachialis muscle. Reaching the upper part of the elbow, it coursed medial to the brachioradialis muscl e. (Source: Artery Research)
Source: Artery Research - February 9, 2017 Category: Cardiology Authors: Merve Özgür, Murat Gölpınar, Yasin Arifoğlu, Safiye Çavdar Tags: Case presentation Source Type: research
Acute effect of coffee consumption on arterial stiffness, evaluated using an oscillometric method
Previous studies show contradictory results related to the vascular effects of coffee; they suggest that caffeine increases arterial stiffness and negatively impacts vascular health, the aim of this study is to evaluate the acute coffee effects on the vascular stiffness. (Source: Artery Research)
Source: Artery Research - January 26, 2017 Category: Cardiology Authors: Dar ío Echeverri, Alejandro Pizano, Félix R. Montes, Pedro Forcada Source Type: research
Effect of Benson relaxation technique on the preoperative anxiety and hemodynamic status: A single blind randomized clinical trial
Preoperative anxiety is a challenge in most surgical interventions that needs to be taken into consideration. This trial assessed the effect of relation technique on the anxiety and hemodynamic response in patients undergoing surgical procedures. (Source: Artery Research)
Source: Artery Research - January 26, 2017 Category: Cardiology Authors: Jalal Poorolajal, Fatemeh Ashtarani, Neda Alimohammadi Source Type: research
Effect of acute isokinetic resistance exercise on systemic arterial hemodynamics and cerebral blood flow dynamics: is there a mismatch?
Resistance exercise (RE) is currently recommended for most adults and is important for reducing risk factors for cardiovascular and metabolic diseases, and improving quality of life. Despite functional and musculoskeletal benefits, high-intensity RE has been shown to acutely increase arterial stiffness and blood pressure, with reduced cerebral blood flow velocity and greater flow pulsatility in the cerebral circulation, which may be detrimental to cerebral microvasculature. (Source: Artery Research)
Source: Artery Research - November 25, 2016 Category: Cardiology Authors: A. Rosenberg, S.O. Wee, E. Schroeder, K. Bunsawat, G. Grigoriadis, B. Fernhall, T. Baynard Source Type: research
Decreased aortic inertance increases susceptibility of late-systolic left ventricular ejection to arterial wave reflections
Background: Left ventricular (LV) afterload patterns consisting of late-systolic loading has been linked to LV remodeling and fibrosis in a number of studies. The contributions from arterial wave reflections (WR) has therefore garnered much interest. Aortic dilation may facilitate the adverse effects of WRs through its effect on aortic inertance. Decreased aortic inertance from aortic dilation is particularly important in late-systole, when the LV-aortic pressure gradient generally reverses and ejection decelerates until time of aortic valve closure. (Source: Artery Research)
Source: Artery Research - November 25, 2016 Category: Cardiology Authors: Timothy S. Phan, John K.-J. Li, Amer Ahmed Syed, Harry G. Oldland, Uzma Kewan, Scott R. Akers, Julio A. Chirinos Source Type: research
Sex differences in vascular structure and function in individuals with multiple sclerosis and healthy controls
Objectives: Cardiovascular disease is a leading cause of death in multiple sclerosis (MS), and recent data showed that subclinical markers of atherosclerosis are higher in MS as well. Prevalence of MS in men is much lower than in women, but their prognosis is much worse. Men with MS also have higher rates of hypertension and diabetes than women with MS. Whether vascular function and structure differs in men than in women with MS, and whether potential sex differences are similar to those in healthy controls, is unknown. (Source: Artery Research)
Source: Artery Research - November 25, 2016 Category: Cardiology Authors: Thessa Hilgenkamp, Garett Griffith, Robert W. Motl, Tracy Baynard, Bo Fernhall Source Type: research
Animal models of local aortic stiffening: The effect of salt in SHRSP
Objectives: The cardiovascular risk associated with central artery stiffening is recognized but better understanding of the mechanisms and therapeutic strategies are needed. Therefore, animal models for evaluating stiffness are crucial. We and others use different approaches to calculate aortic stiffness. Pulse wave velocity (PWV) is relatively easily measured and is indispensable, despite being highly influenced by blood pressure. Local determination using echotracking allows us to determine stiffness at various levels of the arterial tree and to measure the pulsatile diameter wave (distension). (Source: Artery Research)
Source: Artery Research - November 25, 2016 Category: Cardiology Authors: George Lindesay, Christophe Ragonnet, Nicole Villeneuve, Christine Vayssettes-Courchay Source Type: research
No sex differences in the cardiovascular response to mental-stress in older adults
Mental stress elicits increases in blood pressure (BP) and arterial stiffness, the magnitude of which is subject to sex differences. Women tend to have blunted increases in BP compared to men that are driven by cardiac excitation, rather than changes in peripheral resistance. These sex differences have primarily been documented in younger, pre-menopausal women, and through the measurement of peripheral (i.e. brachial) BP, which may differ from responses in the central vasculature (i.e. carotid artery). (Source: Artery Research)
Source: Artery Research - November 25, 2016 Category: Cardiology Authors: Wesley K. Lefferts, Jacqueline A. Augustine, Kayla M. Nunemacher, Kevin S. Heffernan Source Type: research
Improvement in post-transplant hypertension in living donor renal transplantation
Objectives: Since genetic factor determines part of hypertensive phenotype, we aim to demonstrate the role of transplanted kidney from normotensive living donors in post-transplant hypertension (HTN). (Source: Artery Research)
Source: Artery Research - November 25, 2016 Category: Cardiology Authors: Ekamol Tantisattamo, Weera Sukhumthammarat, Prapaipan Putthapiban, Wasawat Vutthikraivit, Siwadon Pitukweerakul Source Type: research
