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Anouk L M Eikendal, Michiel L Bots, Cees Haaring, Tobias Saam, Rob J van der Geest, Jos J M Westenberg, Hester M den Ruijter, Imo E Hoefer, Tim Leiner
BACKGROUND: Reference values for morphological and functional parameters of the cardiovascular system in early life are relevant since they may help to identify young adults who fall outside the physiological range of arterial and cardiac ageing. This study provides age and sex specific reference values for aortic wall characteristics, cardiac function parameters and aortic pulse wave velocity (PWV) in a population-based sample of healthy, young adults using magnetic resonance (MR) imaging...
2016: PloS One
Jeffrey S Lillie, Alexander S Liberson, David A Borkholder
Hypertension is a significant worldwide health issue. Continuous blood pressure monitoring is important for early detection of hypertension, and for improving treatment efficacy and compliance. Pulse wave velocity (PWV) has the potential to allow for a continuous blood pressure monitoring device; however published studies demonstrate significant variability in this correlation. In a recently presented physics-based mathematical model of PWV, flow velocity is additive to the classic pressure wave as estimated by arterial material properties, suggesting flow velocity correction may be important for cuff-less non-invasive blood pressure measures...
October 11, 2016: Cardiovascular Engineering and Technology
Konstantina Dipla, Areti Triantafyllou, Iris Grigoriadou, Evangelia Kintiraki, Georgios A Triantafyllou, Pavlos Poulios, Ioannis S Vrabas, Andreas Zafeiridis, Stella Douma, Dimitrios G Goulis
AIMS/HYPOTHESIS: Gestational diabetes mellitus (GDM) is a risk factor for the development of endothelial dysfunction and cardiovascular disease. However, in vivo microvascular endothelial function in GDM has not been investigated. This study aimed to examine, using near-infrared spectroscopy (NIRS), whether: (1) there are differences in microvascular reactivity and skeletal muscle oxygen consumption (m[Formula: see text]) at rest and during exercise between GDM and uncomplicated pregnancies; and (2) there is an association of NIRS indices with macrovascular function and cardiovascular disease risk factors...
October 8, 2016: Diabetologia
Dustin M Lee, Micah L Battson, Dillon K Jarrell, Kimberly Cox-York, Michelle T Foster, Tiffany L Weir, Christopher L Gentile
OBJECTIVES: The aim of this study was to examine the effects of a Western diet (WD) and supplementation with Fuzhuan tea on large artery stiffness, as determined by aortic pulse wave velocity (aPWV). METHODS: Mice were subjected to a standard diet (SD; n = 12) or WD (n = 10) for 7 mo, and were then separated to receive nonsupplemented drinking water (SD-W and WD-W) or water supplemented with Fuzhuan tea (SD-T and WD-T) (200 mg/kg daily); mice were then maintained on their respective diets for an additional 2 mo...
July 26, 2016: Nutrition
Joana Almeida, José Monteiro, José A Silva, Susana Bertoquini, Jorge Polónia
INTRODUCTION: There is disagreement whether white coat hypertensives (WCH) have different hemodynamic and structural characteristics compared to normotensives (NT) and hypertensives (HT). METHODS: We compared cardiovascular prognostic markers (pulse wave velocity [PWV] and aortic stiffness index [ASI]) and data on central hemodynamics and central pressures (augmentation index [AIx], augmentation pressure [AugP] and pulse pressure amplification [PPA]) from aortic pulse wave analysis between NT (n=175), WCH (n=315) and treated HT (n=691), all with 24-h blood pressure (BP) <130/80 and nocturnal BP <120/70 mmHg after matching for age, gender, body mass index (BMI) and and nocturnal BP...
October 4, 2016: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
G B Cansu, R Sarı, N Yılmaz, S Özdem, M Çubuk
Introduction: Data regarding cardiovascular risk in patients with non-functional adrenal incidentaloma (NFAI) are limited. The objectives of this study are to investigate markers of subclinical cardiovascular disease like carotid intima media thickness (CIMT), pulse wave velocity (PWV), augmentation index (AIx), soluble CD40 ligand (sCD40L) and leptin levels in NFAI patients without traditional cardiovascular risk factors and healthy control group. Methods: This study involved 35 patients with NFAI (11 males, 24 females; mean age, 52...
September 29, 2016: Experimental and Clinical Endocrinology & Diabetes
Y Chow, M Wittwer, G Dekker, Clifton, V M Arstall
INTRODUCTION: Preeclampsia is associated with vascular dysfunction and long-term cardiovascular disease. A novel technique, TensioMed measuring Pulse Wave Velocity (PWV) and Augmentation index (Aix) to estimate arterial stiffness and vasoconstriction respectively during pregnancy and 6 months postpartum. Targets: Our aim was to evaluate vascular function during pregnancy and the postpartum period in women with preeclampsia compared to uncomplicated pregnancy. We evaluated 11 preeclampsia women, diagnosed with hypertension (4140/90 mmHg) and proteinuria (spot urine protein/creatine ratio 430 mg/mmol) and 7 women with uncomplicated pregnancy...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
J Tay, L Foo, C McEniery, I Wilkinson, C Lees
INTRODUCTION: Studies in pre-eclampsia have demonstrated that central haemodynamic changes give more insight than peripheral measures into maternal cardiac and vascular physiology. This study aims to investigate augmentation index (AIX) and pulse wave velocity (PWV) in pregnancies affected by fetal growth restriction (FGR) and compare them to healthy women in the third trimester of pregnancy. Augmentation index (AIx) is a measure of systemic arterial stiffness derived from the ascending aortic pressure waveform...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
Ruth Cockerill, Catherine Chmiel, Ian Crocker, Edward D Johnstone, Jenny E Myers
INTRODUCTION: To assess the reproducibility of Tensiomed Arteriograph measurements taken as part of a longitudinal cohort study of women with chronic hypertension (CHT). METHODS/RESULTS: chartPulse wave velocity (PWV) and augmentation index (AIX) were measured three times (lying and sitting) per visit at 4-8 weekly intervals from 10 to 34 weeks gestation. Three hundred and ninety-one observations were available from 40 women. PWV and AIX were obtained in 95.4% and 94...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
Kwame Yeboah, Daniel A Antwi, Ben Gyan, Virginia Govoni, Charlotte E Mills, J Kennedy Cruickshank, Albert G B Amoah
BACKGROUND: Diabetes and hypertension increase arterial stiffness and cardiovascular events in all societies studied so far; sub-Saharan African studies are sparse. We investigated factors affecting arterial function in Ghanaians with diabetes, hypertension, both or neither. METHOD: Testing the hypothesis that arterial stiffness would progressively increase from controls to multiply affected patients, 270 participants were stratified into those with diabetes or hypertension only, with both, or without either...
September 29, 2016: BMC Endocrine Disorders
Aysegul Kucukali Turkyilmaz, Gul Devrimsel, Munevver Serdaroglu Beyazal, Aynur Kirbas, Yuksel Cicek, Erhan Capkin, Murat Karkucak, Ferhat Gokmen
OBJECTIVE: Serum YKL-40 plays roles in inflammatory and vascular processes. Our aim was to evaluate serum YKL-40 levels in patients with ankylosing spondylitis (AS) and to investigate their potential relationship with arterial stiffness based on carotid-femoral pulse wave velocity (CF-PWV). METHODS: Forty-three patients with AS and 41 healthy controls with no history or current signs of cardiovascular disease were included in the study. All patients were administered nonsteroidal anti-inflammatory drugs (NSAIDs), and none were prescribed anti-tumor necrosis factor agents...
August 9, 2016: Acta Reumatológica Portuguesa
Jessica Barochiner, Lucas S Aparicio, José Alfie, Margarita S Morales, Paula E Cuffaro, Marcelo A Rada, Marcos J Marin, Carlos R Galarza, Gabriel D Waisman
Arterial stiffness, assessed through pulse wave velocity (PWV), independently predicts cardiovascular outcomes. In untreated persons, white-coat hypertension (WCH) has been related to arterial stiffness, but data in treated patients with WCH are scarce. The authors aimed to determine a possible association between WCH and arterial stiffness in this population. Adult treated hypertensive patients underwent home blood pressure monitoring and PWV assessment. Variables associated with PWV in univariable analyses were entered into a multivariable linear regression model...
September 28, 2016: Journal of Clinical Hypertension
M J Landram, A C Utter, C Baldari, L Guidetti, S R McAnulty, S R Collier
The purpose of this study was to compare the hemodynamic, arterial stiffness, and blood flow changes following four weeks of either continuous or discontinuous aerobic exercise in adults. Forty-seven subjects between the ages of 18 and 57 were recruited for one month of either continuous aerobic treadmill work for 30 minutes at 70% max heart rate or 3 bouts of 10 minutes of exercise at 70% of max heart rate with two 10 minute break periods in between, totaling 30 minutes of aerobic work. Following exercise, both CON and DIS groups demonstrated a significant improvement in VO2max (CON 35...
September 23, 2016: Journal of Strength and Conditioning Research
Alexander S Liberson, Jeffrey S Lillie, Steven W Day, David A Borkholder
Pulse wave velocity (PWV) quantification commonly serves as a highly robust prognostic parameter being used in a preventative cardiovascular therapy. Being dependent on arterial elastance, it can serve as a marker of cardiovascular risk. Since it is influenced by a blood pressure (BP), the pertaining theory can lay the foundation in developing a technique for noninvasive blood pressure measurement. Previous studies have reported application of PWV, measured noninvasively, for both the estimation of arterial compliance and blood pressure, based on simplified physical or statistical models...
September 15, 2016: Journal of Biomechanics
Lisa A Lesniewski, Douglas R Seals, Ashley E Walker, Grant D Henson, Mark W Blimline, Daniel W Trott, Gary C Bosshardt, Thomas J LaRocca, Brooke R Lawson, Melanie C Zigler, Anthony J Donato
Inhibition of mammalian target of rapamycin, mTOR, extends lifespan and reduces age-related disease. It is not known what role mTOR plays in the arterial aging phenotype or if mTOR inhibition by dietary rapamycin ameliorates age-related arterial dysfunction. To explore this, young (3.8 ± 0.6 months) and old (30.3 ± 0.2 months) male B6D2F1 mice were fed a rapamycin supplemented or control diet for 6-8 weeks. Although there were few other notable changes in animal characteristics after rapamycin treatment, we found that glucose tolerance improved in old mice, but was impaired in young mice, after rapamycin supplementation (both P < 0...
September 22, 2016: Aging Cell
Stefano Omboni, Igor N Posokhov, Yulia V Kotovskaya, Athanase D Protogerou, Jacques Blacher
The predictive value of vascular biomarkers such as pulse wave velocity (PWV), central arterial pressure (CAP), and augmentation index (AIx), obtained through pulse wave analysis (PWA) in resting conditions, has been documented in a variety of patient groups and populations. This allowed to make appropriate recommendations in clinical practice guidelines of several scientific societies. Due to advances in technologies, largely operator-independent methods are currently available for estimating vascular biomarkers also in ambulatory conditions, over the 24 h...
October 2016: Current Hypertension Reports
John Doupis, Nikolaos Papanas, Alison Cohen, Lyndsay McFarlan, Edward Horton
The aim of our study was to investigate the association between pulse wave velocity (PWV) and pulse wave analysis (PWA)-derived measurements for the evaluation of arterial stiffness. A total of 20 (7 male and 13 female) healthy, non-smoking individuals, with mean age 31 ± 12years were included. PWV and PWA measurements were performed using a SphygmoCor apparatus (Atcor Medical Blood Pressure Analysis System, Sydney Australia). PWV significantly correlated with all central aortic haemodynamic parameters, especially with pulse pressure (PP) (p < 0...
2016: Open Cardiovascular Medicine Journal
Rajiv Agarwal
BACKGROUND: Masked uncontrolled hypertension (MUCH) is associated with greater target organ damage such as left ventricular hypertrophy, increased arterial stiffness and albuminuria. Whether MUCH independently associates with greater cardiovascular end-organ damage or kidney damage is unclear. The objective of this study was to assess the strength of the relationship of MUCH (awake ambulatory blood pressure ≥135/85 mmHg and clinic blood pressure <140/90 mmHg) with target organ damage...
September 20, 2016: Nephrology, Dialysis, Transplantation
Morton G Burt, Brenda L Mangelsdorf, Stephen N Stranks, Arduino A Mangoni
Vitamin D deficiency is associated with increased arterial stiffness. However, the mechanisms underlying this association have not been clarified. The aim was to investigate whether changes in autonomic nervous system activity could underlie an association between 25 hydroxy vitamin D and arterial stiffness. A total of 49 subjects (age = 60 ± 8 years, body mass index = 26.7 ± 4.6 kg/m², 25 hydroxy vitamin D = 69 ± 22 nmol/L) underwent measurements of pulse wave velocity (PWV) and augmentation index (AIx), spontaneous baroreflex sensitivity, plasma metanephrines and 25 hydroxy vitamin D...
2016: Nutrients
Agnes Masengu, Jennifer B Hanko, Alexander P Maxwell
PURPOSE: Increased arterial stiffness is a common finding in patients with end-stage renal disease. Following creation of an arteriovenous fistula (AVF), appropriate dilation of the feeding artery must occur to facilitate AVF maturation. Arterial stiffness may impair the arterial dilation required to facilitate AVF development and contribute to subsequent failure to mature (FTM). The aim of this pilot study was to investigate the association between measurements of central and peripheral arterial stiffness, and AVF FTM...
September 3, 2016: Journal of Vascular Access
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