A new statistical phase offset technique for the calculation of pulse wave velocity
Pulmonary blood pressure measurements were collected from 5 clinically healthy horses. Pulse wave velocity (PWV) values were calculated using five techniques, four existing (minimum foot-to-foot, F2F; maximum 1st derivative, M1D; maximum 2nd derivative, M2D; and cross correlation, CC) and the new statistical phase offset technique (SPO). The SPO technique was also applied to systolic (SPO-S), diastolic (SPO-D) and full wave (SPO-FW) data. The reliability of each analysis technique was determined using the consistency of calculated PWV values. (Source: Artery Research)
Source: Artery Research - January 20, 2016 Category: Cardiology Authors: John Runciman, Martine McGregor, Gonçalo Silva, Gabrielle Monteith, Laurent Viel, Luis G. Arroyo Source Type: research
Acute changes in arterial stiffness following exercise in healthy Caucasians and South Asians
This study aims to establish the acute changes in arterial stiffness using applanation tonometry following sub-maximal exercise in Caucasians and South Asians. This study also aims to establish the relationship between exercise capacity and arterial stiffness. (Source: Artery Research)
Source: Artery Research - December 13, 2015 Category: Cardiology Authors: Jeyasundar Radhakrishnan, Dionne Matthew, Keiran Henderson, David A. Brodie Source Type: research
A pilot study of scanning acoustic microscopy as a tool for measuring arterial stiffness in aortic biopsies
This study explores the use of scanning acoustic microscopy (SAM) as a potential tool for characterisation of arterial stiffness using aortic biopsies. SAM data is presented for human tissue collected during aortic bypass graft surgery for multi-vessel coronary artery disease. Acoustic wave speed as determined by SAM was compared to clinical data for the patients namely, pulse wave velocity (PWV), blood pressure, cholesterol and glucose levels. There was no obvious trend relating acoustic wave speed to PWV values, and an inverse relationship was found between systolic and diastolic blood pressure and acoustic wave speed. (...
Source: Artery Research - December 12, 2015 Category: Cardiology Authors: Riaz Akhtar, J. Kennedy Cruickshank, Xuegen Zhao, Brian Derby, Thomas Weber Tags: Short communication Source Type: research
Diastolic left ventricular function in relation to circulating metabolic biomarkers in a general population
Background: The metabolic signature associated with subclinical diastolic left ventricular (LV) dysfunction in the general population is unknown. (Source: Artery Research)
Source: Artery Research - November 24, 2015 Category: Cardiology Authors: Zhen Yu Zhang, Vannina Marrachelli, Lutgarde Thijs, Wen Yi Yang, Fang Fei Wei, Daniel Monleon, Lotte Jacobs, Tim Nawrot, Peter Verhamme, Jens-Uwe Voigt, Tatiana Kuznetsova, Josep Redón, Jan Staessen Source Type: research
Age-dependent association of 24-hour peripheral and central pulse pressures with stroke volume
Objective: Pulse pressure (PP) is a complex physiologic trait affected by many variables, including LV contractility (reflected by stroke volume), arterial stiffness, and central-to-brachial amplification.The impact of age on the relationship between stroke volume and central or brachial PP has not been investigated. (Source: Artery Research)
Source: Artery Research - November 24, 2015 Category: Cardiology Authors: Giacomo Pucci, Francesca Battista, Fabio Anastasio, Mariano Edoardo Crapa, Leandro Sanesi, Giuseppe Schillaci Source Type: research
Past smokers decelerate vascular aging in the long term
We examined the effect of quitting smoking on the progression of arterial stiffness. (Source: Artery Research)
Source: Artery Research - November 24, 2015 Category: Cardiology Authors: Dimitrios Terentes-Printzios, Charalambos Vlachopoulos, Nikolaos Ioakeimidis, Athanasios Aggelis, Panagiotis Xaplanteris, Panagiota Pietri, Dimitrios Tousoulis Source Type: research
Childhood determinants of early adult arterial stiffness in different ethnic groups
Childhood determinants of aortic pulse wave velocity [PWV] are poorly understood. We tested how factors measured twice previously in childhood in the MRC ‘DASH' study, particularly body mass (BMI) components and BP, affected PWV in young adults. (Source: Artery Research)
Source: Artery Research - November 24, 2015 Category: Cardiology Authors: K.J. Cruickshank, L. Faconti, M.J. Silva, O.R. Molaodi, Z.E. Enayat, A. Cassidy, A. Karamanos, U.M. Read, P. Dall, B. Stansfield, S. Harding Source Type: research
Relation of arterial stiffness with left ventricular diastolic function in general population
Left ventricular diastolic function declines with aging and hypertension. It is well known that elevated blood pressure results in increased arterial stiffness. The study aims to determine the relationship between arterial stiffness and left ventricular diastolic function in general population. (Source: Artery Research)
Source: Artery Research - November 24, 2015 Category: Cardiology Authors: Wiktoria Wojciechowska, Katarzyna Stolarz-Skrzypek, Agnieszka Olszanecka, Lukasz Klima, Jerzy Gasowski, Tomasz Grodzicki, Kalina Kawecka-Jaszcz, Danuta Czarnecka Source Type: research
The BODE Index prognostic score is an independent determinant of arterial stiffness in Chronic Obstructive Pulmonary Disease (COPD)
Introduction: COPD is associated with increased cardiovascular risk, independent of established risk factors. Arterial stiffness is a surrogate of cardiovascular risk and we sought to determine its relationship with COPD severity and prognosis in the ERICA (Evaluation of role of inflammation in airways disease) multi-site UK study: the largest cohort study focusing on cardiovascular manifestations in COPD. (Source: Artery Research)
Source: Artery Research - November 24, 2015 Category: Cardiology Authors: Marie Fisk, Nichola Gale, Divya Mohan, Carmel M. McEniery, Julia Forman, Charlotte E. Bolton, William MacNee, John R. Cockcroft, Joseph Cheriyan, Ruth Tal-Singer, Michael I. Polkey, Ian B. Wilkinson Source Type: research
A method for the measurement of pressure sensitivity of carotid-femoral pulse wave velocity in humans
Background: Carotid-femoral pulse wave velocity (cfPWV), a marker of cardiovascular disease, is modified by both blood pressure and changes in arterial wall properties. Current cfPWV measurement does not differentiate between effects of blood pressure and arterial wall properties. Animal studies show that the blood pressure sensitivity of arterial PWV is indicative of blood vessel remodeling. Measurement of this parameter in humans requires a forced change in blood pressure, as can be achieved by Valsalva maneuver. (Source: Artery Research)
Source: Artery Research - November 24, 2015 Category: Cardiology Authors: Mark Butlin, Alberto Avolio Source Type: research
Re-reflection of backward propagating waves leads to amplification of the forward pressure wave in wave separation analysis
Introduction: In wave separation analysis, the pressure wave is decomposed into a single forward and backward component, which actually compounds all forward and backward propagating waves. We hypothesize that, in particular in presence of early reflections as in aortic coarctation, re-reflection of backward propagating waves at the ventricular-arterial interface amplifies the forward wave component. (Source: Artery Research)
Source: Artery Research - November 24, 2015 Category: Cardiology Authors: Patrick Segers, Liesbeth Taelman, Joris Degroote, Jan Vierendeels Source Type: research
Testing Riva-Rocci’s basic assumptions by systematic review and meta-analysis to determine the true difference between aortic and brachial invasive blood pressure
This study aimed to determine the true differences in aortic and brachial BP by systematic review and meta-analysis of invasive (intra-arterial) data. (Source: Artery Research)
Source: Artery Research - November 24, 2015 Category: Cardiology Authors: Dean Picone, Petr Otahal, Martin Schultz, James Sharman Source Type: research
Ambulatory aortic stiffness, independently of static, associates with narrower retinal arteriolar calibers in hypertensives: The SAFAR study
Background: Arterial stiffness measured under static conditions reclassifies significantly cardiovascular (CV) risk and associates with organ damage, including narrower retinal arterioles. However, arterial stiffness exhibits diurnal variation, thus single static stiffness recordings do not correspond to the “usual” 24 hr, awake and asleep average arterial stiffness. We aimed to test the hypothesis that ambulatory 24 hr, awake and asleep aortic (a) pulse wave velocity (PWV) associate with retinal vessel calibers, independently of confounders and of static arterial stiffness, in hypertensive individuals free from dia...
Source: Artery Research - November 24, 2015 Category: Cardiology Authors: Evaggelia K. Aissopou, Antonios A. Argyris, Efthimia G. Nasothimiou, George D. Konstantonis, Konstantinos Tampakis, Nikolaos Tentolouris, Miltiadis Papathanassiou, Panagiotis G. Theodossiadis, Theodoros G. Papaioannou, Coen D.A. Stehouwer, Petros P. Sfika Source Type: research
In singletons born at term, lower gestational age is associated with increased aortic pulse wave velocity in young adulthood: The Northern Ireland Young Hearts Project (NIYHP)
Decreases in the mean gestational age of babies born at term have been reported over the past decade in several developed countries, linked to increases in the rates of planned births by labour induction and/or pre-labour caesarean sections. In contrast to the effects of pre-term birth, the extent to which lower gestation age within the ‘at-term' range (i.e. ≥37–≤42 weeks) affects individuals' cardiovascular heath is largely unknown, however. We have therefore examined the association between gestational age (obtained from the Northern Ireland Child Health Services' records) and aortic pulse wave velocity (aPWV) in...
Source: Artery Research - November 24, 2015 Category: Cardiology Authors: Isabel Ferreira, Alison Gallagher, Liam Murray, Colin Boreham Source Type: research
Pulse wave velocity and gait performance in older subjects
Background: Arterial stiffening is an age-related change and is a well-known cardiovascular risk factor but its association with physical decline is rarely evaluated. (Source: Artery Research)
Source: Artery Research - November 24, 2015 Category: Cardiology Authors: Anna Skalska, Malgorzata Fedyk-Lukasik, Paulina Fatyga, Tomasz Grodzicki Source Type: research
