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https://www.readbyqxmd.com/read/27885494/comparison-of-arterial-stiffness-compliance-in-the-ascending-aorta-and-common-carotid-artery-in-healthy-subjects-and-its-impact-on-left-ventricular-structure-and-function
#1
Olga Vriz, Julien Magne, Caterina Driussi, Gabriele Brosolo, Francesco Ferrara, Paolo Palatini, Victor Aboyans, Eduardo Bossone
Arterial stiffness and compliance parameters from two adjacent elastic arteries [aorta and common carotid artery (CCA)] were compared and their relationship with left ventricular (LV) structure and function and clinical parameters was assessed. 584 healthy subjects were prospectively enrolled [mean age 47.8 ± 18.4 years, range 16-94; 318 (54.4%) men]. They underwent comprehensive transthoracic echocardiography; M-mode diameters were measured at the level of the ascending aorta in systole and diastole and by echo-tracking at the level of the left CCA...
November 24, 2016: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/27754264/os-37-07-could-flow-mediated-slowing-constitute-a-methodological-alternative-to-the-conventional-echo-tracking-flow-mediated-dilation-technique-for-the-evaluation-of-endothelial-function-preliminary-results
#2
Telmo Pereira, Armindo Almeida, João Maldonado, Jorge Conde
OBJECTIVE: The Moens-Korteweg equation predicts changes in pulse wave velocity (PWV) following changes in arterial radius, therefore an increase in arterial radius, as seen in a reactive hyperaemia (RH) condition, should slow PWV over a given arterial segment. If this assumption is true, than the deceleration of PWV over the brachial artery (flow-mediated slowing - FMS) should be an equivalent signal of endothelial function during a conventional RH flow-mediated dilation (FMD) procedure...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27643229/os-37-07-could-flow-mediated-slowing-constitute-a-methodological-alternative-to-the-conventional-echo-tracking-flow-mediated-dilation-technique-for-the-evaluation-of-endothelial-function-preliminary-results
#3
Telmo Pereira, Armindo Almeida, João Maldonado, Jorge Conde
OBJECTIVE: The Moens-Korteweg equation predicts changes in pulse wave velocity (PWV) following changes in arterial radius, therefore an increase in arterial radius, as seen in a reactive hyperaemia (RH) condition, should slow PWV over a given arterial segment. If this assumption is true, than the deceleration of PWV over the brachial artery (flow-mediated slowing - FMS) should be an equivalent signal of endothelial function during a conventional RH flow-mediated dilation (FMD) procedure...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27627559/the-relationship-of-carotid-arterial-stiffness-and-left-ventricular-concentric-hypertrophy-in-hypertension
#4
Joanna Jaroch, Krystyna Łoboz-Grudzień, Stefania Magda, Maria Florescu, Zbigniew Bociąga, Andrea O Ciobanu, Ewa Kruszyńska, Krzysztof Dudek, Dragos Vinereanu
BACKGROUND: Left ventricular hypertrophy (LVH) and geometry patterns vary in different hemodynamic profiles The concentric hypertrophy (CH) pattern has been proved to have the worst prognosis. OBJECTIVES: The aim of the study was to test the hypothesis that carotid artery stiffness, as a marker of vascular damage, is associated with CH, independently of other potential determinants such as demographic factors (age, sex, BMI), clinical parameters (smoking, diabetes, creatinine level) and hemodynamic variables (blood pressure, pulse pressure [PP])...
March 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/27508836/-op-7c-04-genetic-association-study-identifies-common-variation-in-phactr1-to-associate-with-fibromuscular-dysplasia
#5
S Kiando, N Tucker, L Castro-Vega, D Cusi, P Galan, Empana J-P, J Olin, H Gornik, P-F Plouin, I Kullo, D Milan, S Ganesh, P Boutouyrie, J Kovacic, X Jeunemaitre, N Bouatia-Naji
OBJECTIVE: Fibromuscular dysplasia (FMD) is a nonatherosclerotic vascular disease leading to stenosis, dissection and aneurysm affecting mainly the renal and cerebrovascular arteries. FMD has higher prevalence in females (80-90%) and predisposes to hypertension and stroke but its pathophysiology is unclear. DESIGN AND METHOD: We performed a multistage genetic association study (1,154 patients and 3,895 controls) from five case-control cohorts. We investigated the association between rs9349379 in the phosphatase and actin regulator 1 gene (PHACTR1) and carotid traits by echo-tracking in healthy volunteers, the expression of PHACTR1 by genotypes in human fibroblasts, protein staining pattern in human carotids, and vasculature development after Phactr1 knockdown in zebrafish...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27508691/-op-4a-06-relationship-between-circadian-patterns-of-blood-pressure-and-carotid-artery-stiffness-and-wave-intensity-in-patients-with-arterial-hypertension
#6
D Skultetyova, S Filipova
OBJECTIVE: The aim of the study is to investigate the relationship between daytime and night-time mean blood pressure (BP) on carotid artery stiffness (CAS) and wave intensity (WI) in 1) hypertensive patients (pts) and in 2) the subgroups formed according to the circadian patterns of BP. DESIGN AND METHOD: We investigated 148 hypertensive pts, mean age 58 years. The subgroups were created according to the circadian patterns (64 dippers, 56 non-dippers, 14 extreme dippers, 14 reverse dippers)...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27434535/carotid-and-aortic-stiffness-in-patients-with-heterozygous-familial-hypercholesterolemia
#7
Alexandra I Ershova, Alexey N Meshkov, Tatyana A Rozhkova, Maria V Kalinina, Alexander D Deev, Anatoliy N Rogoza, Tatyana V Balakhonova, Sergey A Boytsov
BACKGROUND: The role of plasma cholesterol in impairing arterial function and elasticity remains unclear. We evaluated arterial stiffness, measured locally in the common carotid artery by high-resolution echo-tracking, and aortic stiffness, using carotid-femoral pulse wave velocity (PWV) (the "gold-standard" measurement of arterial stiffness), in treatment-naive patients with heterozygous familial hypercholesterolemia (FH). METHODS: The study included 66 patients with FH (10-66 years old) and 57 first-degree relatives without FH (11-61 years old)...
2016: PloS One
https://www.readbyqxmd.com/read/27233301/age-and-hypertension-strongly-induce-aortic-stiffening-in-rats-at-basal-and-matched-blood-pressure-levels
#8
George Lindesay, Christophe Ragonnet, Stefano Chimenti, Nicole Villeneuve, Christine Vayssettes-Courchay
Age and hypertension are major causes of large artery remodeling and stiffening, a cardiovascular risk factor for heart and kidney damage. The aged spontaneously hypertensive rat (SHR) model is recognized for human cardiovascular pathology, but discrepancies appeared in studies of arterial stiffness. We performed experiments using a robust analysis via echo tracking in 20-week adult (n = 8) and 80-week-old SHR (n = 7), with age-matched normotensive Wistar Kyoto rats (WKY, n = 6;6) at basal and matched levels of blood pressure (BP)...
May 2016: Physiological Reports
https://www.readbyqxmd.com/read/27118294/the-noninvasive-assessment-of-vascular-aging
#9
REVIEW
Stéphane Laurent, Louise Marais, Pierre Boutouyrie
The growing interest in the clinical measurement of arterial aging through the noninvasive assessment of arterial stiffness is associated with important developments in novel methods and apparatus. In this review, we aimed to describe the major principles of the measurement of arterial stiffness and to critically review the advantages and limitations of the different methods. The measurement of regional stiffness is recommended by international guidelines for routine clinical practice. It is most often determined through pulse wave velocity (PWV) between 2 arterial sites...
May 2016: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/26877397/p-096-measure-of-change-in-carotid-radial-pulse-wave-velocity-after-reactive-hyperaemia
#10
H Khettab, B Nayagom, S Millasseau, S Laurent, P Boutouyrie
BACKGROUND: The recognized reference method for endothelial function assessment is brachial artery diameter echo-tracking during flow mediated dilation (FMD) induced by reactive hyperaemia (RH). From the Mons-Korteweg equation, FMD should also reduce upper limb pulse wave velocity (PWV). The aim of our study was to compare echo-tracking FMD with PWV changes after RH. METHODS: Brachial diameter was assessed by echo-tracking (MyLAb 70, Easote, Italy) before and after 7min of ischemia induced by inflating a cuff on the right wirst 50mmHg above subject's systolic blood pressure...
December 2015: Annales de Cardiologie et D'angéiologie
https://www.readbyqxmd.com/read/26842667/the-acute-effect-of-maximal-exercise-on-central-and-peripheral-arterial-stiffness-indices-and-hemodynamics-in-children-and-adults
#11
Xavier Melo, Bo Fernhall, Diana A Santos, Rita Pinto, Nuno M Pimenta, Luís B Sardinha, Helena Santa-Clara
This study compared the effects of a bout of maximal running exercise on arterial stiffness in children and adults. Right carotid blood pressure and artery stiffness indices measured by pulse wave velocity (PWV), compliance and distensibility coefficients, stiffness index α and β (echo-tracking), contralateral carotid blood pressure, and upper and lower limb and central/aortic PWV (applanation tonometry) were taken at rest and 10 min after a bout of maximal treadmill running in 34 children (7.38 ± 0.38 years) and 45 young adults (25...
March 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/26770685/comparison-of-sequentially-measured-aloka-echo-tracking-one-point-pulse-wave-velocity-with-sphygmocor-carotid-femoral-pulse-wave-velocity
#12
Olga Vriz, Caterina Driussi, Salvatore La Carrubba, Vitantonio Di Bello, Concetta Zito, Scipione Carerj, Francesco Antonini-Canterin
OBJECTIVES: Recently, echo-tracking-derived measures of arterial stiffness have been introduced in clinical practice for the assessment of one-point pulse wave velocity. The purpose of this study was to find a relation between carotid-femoral pulse wave velocity and one-point carotid pulse wave velocity, and to find a value of one-point carotid pulse wave velocity that predicts carotid-femoral pulse wave velocity higher than 12 m/s. METHODS: A total of 160 consecutive subjects (112 male/48 female, mean age = 51...
2013: SAGE Open Medicine
https://www.readbyqxmd.com/read/26736653/a-method-for-localized-computation-of-pulse-wave-velocity-in-carotid-structure
#13
Ravindra B Patil, P Krishnamoorthy, Shriram Sethuraman
Pulse Wave Velocity (PWV) promises to be a useful clinical marker for noninvasive diagnosis of atherosclerosis. This work demonstrates the ability to perform localized carotid PWV measurements from the distention waveform derived from the Radio Frequency (RF) ultrasound signal using a carotid phantom setup. The proposed system consists of low cost custom-built ultrasound probe and algorithms for envelope detection, arterial wall identification, echo tracking, distension waveform computation and PWV estimation...
2015: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/26585072/primary-antiphospholipid-syndrome-absence-of-premature-atherosclerosis-in-patients-without-traditional-coronary-artery-disease-risk-factors
#14
D Andrade, L Bortolotto, E Bonfá, E Borba
OBJECTIVE: To investigate if patients with Primary Antiphospholipid Syndrome (PAPS) with venous and/or arterial thrombosis without traditional coronary artery disease (CAD) risk factors develop early atherosclerotic vascular damage. METHODS: 27 female patients with PAPS (Sidney criteria) and 27 age, body mass index (BMI), and sex matched controls were consecutively selected. Exclusion criteria were: black race, age ≥55 years, traditional cardiovascular risk factors, other thrombophilias or connective tissue diseases, corticosteroids use and pregnancy...
April 2016: Lupus
https://www.readbyqxmd.com/read/26431186/reference-values-for-local-arterial-stiffness-part-b-femoral-artery
#15
Jelle Bossuyt, Lian Engelen, Isabel Ferreira, Coen D Stehouwer, Pierre Boutouyrie, Stéphane Laurent, Patrick Segers, Koen Reesink, Luc M Van Bortel
OBJECTIVE: Carotid-femoral pulse wave velocity (PWV) is considered the gold standard measure of arterial stiffness, representing mainly aortic stiffness. As compared with the elastic carotid and aorta, the more muscular femoral artery may be differently associated with cardiovascular risk factors (CV-RFs), or, as shown in a recent study, provide additional predictive information beyond carotid-femoral PWV. Still, clinical application is hampered by the absence of reference values. Therefore, our aim was to establish age and sex-specific reference values for femoral stiffness in healthy individuals and to investigate the associations with CV-RFs...
October 2015: Journal of Hypertension
https://www.readbyqxmd.com/read/26427107/effect-of-shoushen-granule-on-arterial-elasticity-in-patients-with-carotid-atherosclerosis-a-clinical-randomized-controlled-trial
#16
RANDOMIZED CONTROLLED TRIAL
Shen Dingzhu, Xing Sanli, Chen Chuan, Shen Rui, Lou Danfei
OBJECTIVE: To investigate the effectiveness of Shoushen granule, Chinese herbal preparation, on carotid artery elasticity in patients with carotid atherosclerosis. METHODS: The total of 156 carotid atherosclerosis patients were randomly divided into the intervention group (83 cases, treated with Shoushen granule) and the control group (73 cases, treated with pravastatin). Brachial-ankle pulse wave velocity baPWV) and Ankle-Brachial Pressure Index (ABI) were measured by automated arteriosclerosis detector...
August 2015: Journal of Traditional Chinese Medicine, Chung i Tsa Chih Ying Wen Pan
https://www.readbyqxmd.com/read/26420461/correlation-between-echo-tracking-parameters-and-in-vitro-measurements-of-arterial-contraction-and-relaxation-in-rats-fed-a-high-cholesterol-diet
#17
Yi Zhang, Wei-Wei Zhan, Yong-Jie Wu, Bo Zhao, Wu-Gang Zhou, Dong-Rui Chen, Wei Zhou, Zhen-Hua Liu, Wei-Min Jiang, Lin Zheng
BACKGROUND: Echo-tracking (ET) is a new technique that allows the assessment of arterial function and stiffness. This study aimed to ascertain the utility of the echo-tracking (ET) technique to assess vascular stiffness in rats with hypercholesterolemia and atherosclerosis. MATERIAL AND METHODS: ET was used to measure the arterial stiffness of the aorta in cholesterol-fed Sprague-Dawley rats (group T1, n=10, for 4 weeks; group T2, n=10, for 12 weeks) and normal control rats (group C1, n=10; group C2, n=10)...
September 30, 2015: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/26406394/carotid-artery-intima-media-thickness-and-stiffness-index-%C3%AE-changes-in-normal-children-role-of-age-height-and-sex
#18
Maria Pia Calabrò, Scipione Carerj, Mario Salvatore Russo, Francesco Letterio De Luca, Maria Teresa Naso Onofrio, Francesco Antonini-Canterin, Concetta Zito, Lilia Oreto, Lucia Manuri, Bijoy K Khandheria, Giuseppe Oreto
AIMS: The need for early markers of atherosclerosis in paediatric ages has been emphasized recently. Few data are available on the behaviour of carotid intima-media thickness (cIMT) and arterial stiffness in normal children. METHODS: We studied prospectively 131 healthy children (78 boys), aged 3-16 years, by high-definition ultrasonography and echo-tracking technique in order to evaluate cIMT and stiffness index β. RESULTS: Stiffness index β underwent a significant age-related increase (P < 0...
January 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/26112424/towards-clinical-computed-ultrasound-tomography-in-echo-mode-dynamic-range-artefact-reduction
#19
Michael Jaeger, Martin Frenz
Computed ultrasound tomography in echo-mode (CUTE) allows imaging the speed of sound inside tissue using hand-held pulse-echo ultrasound. This technique is based on measuring the changing local phase of beamformed echoes when changing the transmit beam steering angle. Phantom results have shown a spatial resolution and contrast that could qualify CUTE as a promising novel diagnostic modality in combination with B-mode ultrasound. Unfortunately, the large intensity range of several tens of dB that is encountered in clinical images poses difficulties to echo phase tracking and results in severe artefacts...
September 2015: Ultrasonics
https://www.readbyqxmd.com/read/26060082/postprandial-effects-on-arterial-stiffness-parameters-in-healthy-young-adults
#20
Tyler Murray, Eric Y Yang, Gerd Brunner, Anirudh Kumar, Nasser Lakkis, Arunima Misra, Salim S Virani, Craig J Hartley, Joel D Morrisett, Christie M Ballantyne, Vijay Nambi
Postprandial lipemia has been associated with acute endothelial dysfunction. Endothelial dysfunction, in turn, is associated with increased arterial stiffness. However, the relationship between postprandial lipemia and acute changes in arterial stiffness has not been extensively investigated. Therefore, we conducted a pilot study on the effects of postprandial lipemia on arterial stiffness in 19 healthy young adults before and after consumption of a high-fat mixed meal. Arterial stiffness was assessed locally with echo-tracking carotid arterial strain (CAS) and globally with carotid-femoral pulse wave velocity (PWV)...
December 2015: Vascular Medicine
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