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Sphygmocor

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https://www.readbyqxmd.com/read/28528875/comparison-of-central-and-peripheral-hemodynamics-in-association-with-left-ventricular-diastolic-dysfunction-in-the-community-based-elderly-chinese
#1
Jing Xiong, Xuejing Yu, Shikai Yu, Bin Bai, Henry Xu, Hongwei Ji, Jiadela Teliewubai, Kai Wang, Chen Chi, Yuyan Lu, Yiwu Zhou, Ximin Fan, Jue Li, Yi Zhang, Yawei Xu
The aim of the study was to investigate the association of left ventricular diastolic dysfunction (LVDD) with central and peripheral hemodynamics. A total of 1599 community-based senior residents (aged ≥ 65 years) in northern Shanghai, China, were recruited as of August 2015. Echocardiography was performed for each participant using the MyLab30 Gold CV system. According to the recommendations from the American Society of Echocardiography, the ratio of E (peak early diastolic transmitral flow velocity) to E' (early diastolic lateral mitral annulus velocity) was assessed for the evaluation of LVDD...
April 27, 2017: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/28520843/measurement-of-aortic-pulse-wave-velocity-with-a-connected-bathroom-scale
#2
David Campo, Hakim Khettab, Roger Yu, Nicolas Genain, Paul Edouard, Nadine Buard, Pierre Boutouyrie
BACKGROUND: Measurement of arterial stiffness should be more available. Our aim was to show that aortic pulse wave velocity can be reliably measured with a bathroom scale combining the principles of ballistocardiography (BCG) and impedance plethysmography on a single foot. METHOD: The calibration of the bathroom scale was conducted on a group of 106 individuals. The aortic pulse wave velocity was measured with the SphygmoCor in the supine position. Three consecutive measurements were then performed on the Withings scale in the standing position...
May 17, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28486936/effects-of-inaccuracies-in-arterial-path-length-measurement-on-differences-in-mri-and-tonometry-measured-pulse-wave-velocity
#3
Jonathan R Weir-McCall, Faisel Khan, Deirdre B Cassidy, Arsh Thakur, Jennifer Summersgill, Shona Z Matthew, Fiona Adams, Fiona Dove, Stephen J Gandy, Helen M Colhoun, Jill Jf Belch, J Graeme Houston
BACKGROUND: Carotid-femoral pulse wave velocity (cf-PWV) and aortic PWV measured using MRI (MRI-PWV) show good correlation, but with a significant and consistent bias across studies. The aim of the current study was to evaluate whether the differences between cf.-PWV and MRI-PWV can be accounted for by inaccuracies of currently used distance measurements. METHODS: One hundred fourteen study participants were recruited into one of 4 groups: Type 2 diabetes melltus (T2DM) with cardiovascular disease (CVD) (n = 23), T2DM without CVD (n = 41), CVD without T2DM (n = 25) and a control group (n = 25)...
May 10, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28448179/comparison-of-arterial-stiffness-in-preeclamptic-and-normotensive-pregnant-women-from-a-semi-rural-region-of-south-africa
#4
A Namugowa, J Iputo, J Wandabwa, A Meeme, G A B Buga
BACKGROUND: Preeclampsia is associated with arterial stiffness and endothelial dysfunction. The pathophysiology of arterial tone in preeclampsia has not been well described in rural African population, where the incidence is higher. OBJECTIVE: The aim of the study was to compare arterial tone of preeclamptic with pregnant normotensive women assessed with noninvasive techniques, using applanation tonometry with SphygmoCor. METHOD: This was a cross-sectional study...
2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28445206/independent-effects-of-blood-pressure-and-parathyroid-hormone-on-aortic-pulse-wave-velocity-in-untreated-chinese-patients
#5
Yi-Bang Cheng, Li-Hua Li, Qian-Hui Guo, Fei-Ka Li, Qi-Fang Huang, Chang-Sheng Sheng, Ji-Guang Wang, Jan A Staessen, Yan Li
OBJECTIVE: Whether or not calcium-regulating hormones stiffen arteries independent of blood pressure (BP) is uncertain. We investigated the independent associations of carotid-femoral pulse wave velocity (PWV) with 25-hydroxy-vitamin D [25(OH)D], parathyroid hormone (PTH) and 24-h ambulatory BP in untreated Chinese patients. METHODS: Consecutive untreated patients referred for ambulatory BP monitoring were recruited. PWV was measured with a high-fidelity micromanometer and the SphygmoCor software (AtCor Medical, West Ryde, New South Wales, Australia)...
April 25, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28407807/subclinical-inflammation-associated-with-prolonged-timp-1-upregulation-and-arterial-stiffness-after-gestational-diabetes-mellitus-a-hospital-based-cohort-study
#6
Tiina Vilmi-Kerälä, Anneli Lauhio, Taina Tervahartiala, Outi Palomäki, Jukka Uotila, Timo Sorsa, Ari Palomäki
BACKGROUND: Gestational diabetes mellitus (GDM) has significant implications for the future health of the mother. Some clinical studies have suggested subclinical inflammation and vascular dysfunction after GDM. We aimed to study whether concentrations of high-sensitivity C-reactive protein (hsCRP), tissue inhibitor of metalloproteinase-1 (TIMP-1), matrix metalloproteinase-8 (MMP-8) and -9, as well as values of arterial stiffness differ between women with and without a history of GDM a few years after delivery...
April 13, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28369342/enhanced-aortic-reflected-wave-magnitude-accounts-for-the-impact-of-female-gender-on-aortic-pressure-augmentation-in-a-group-of-african-ancestry
#7
Grace Tade, Gavin R Norton, Hendrik L Booysen, Moekanyi J Sibiya, Imraan Ballim, Pinhas Sareli, Angela J Woodiwiss
BACKGROUND: Aortic reflected wave magnitude (RM) may not account for sex-specific differences in aortic pressure augmentation in Caucasians. However, aortic reflected waves are greater in groups of African descent than other ethnic groups. We determined whether RM or alternative factors explain the impact of sex on aortic augmented pressure (Pa) in participants of African ancestry. METHODS: We assessed aortic function (radial applanation tonometry, SphygmoCor) in 1,197 randomly recruited community participants of African ancestry (age ≥ 16 years)...
March 20, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28365237/contributions-of-aortic-pulse-wave-velocity-and-backward-wave-pressure-to-variations-in-left-ventricular-mass-are-independent-of-each-other
#8
Hamza Bello, Gavin R Norton, Imraan Ballim, Carlos D Libhaber, Pinhas Sareli, Angela J Woodiwiss
Aortic pulse wave velocity (PWV) and backward waves, as determined from wave separation analysis, predict cardiovascular events beyond brachial blood pressure. However, the extent to which these aortic hemodynamic variables contribute independent of each other is uncertain. In 749 randomly selected participants of African ancestry, we therefore assessed the extent to which relationships between aortic PWV or backward wave pressures (Pb) (and hence central aortic pulse pressure [PPc]) and left ventricular mass index (LVMI) occur independent of each other...
March 14, 2017: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/28285656/relationships-of-insulin-like-growth-factor-1-its-binding-proteins-and-cardiometabolic-risk-in-hypertensive-perimenopausal-women
#9
Agnieszka Olszanecka, Aneta Dragan, Kalina Kawecka-Jaszcz, Danuta Fedak, Danuta Czarnecka
PURPOSE: During the transition from premenopause to postmenopause, many women experience weight gain and central fat deposition; therefore, we hypothesized that circulating growth factors can play a role in the pathogenesis of hypertension, metabolic syndrome, and subclinical organ damage in perimenopausal women. BASIC PROCEDURES: The study included 192 women aged 40 to 60years; 152 had newly diagnosed essential hypertension that had never been treated, and 40 were normotensive age-matched controls...
April 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28243315/acceleration-of-cardiovascular-biological-age-by-amphetamine-exposure-is-a-power-function-of-chronological-age
#10
Albert Stuart Reece, Amanda Norman, Gary Kenneth Hulse
BACKGROUND: Amphetamine abuse is becoming more widespread internationally. The possibility that its many cardiovascular complications are associated with a prematurely aged cardiovascular system, and indeed biological organism systemically, has not been addressed. METHODS: Radial arterial pulse tonometry was performed using the SphygmoCor system (Sydney). 55 amphetamine exposed patients were compared with 107 tobacco smokers, 483 non-smokers and 68 methadone patients (total=713 patients) from 2006 to 2011...
2017: Heart Asia
https://www.readbyqxmd.com/read/28229055/a-comparative-study-on-skin-and-plasma-advanced-glycation-end-products-and-their-associations-with-arterial-stiffness
#11
Chang-Yuan Liu, Qi-Fang Huang, Yi-Bang Cheng, Qian-Hui Guo, Qi Chen, Yan Li, Ji-Guang Wang
BACKGROUND: We compared skin and plasma measurements of advanced glycation end products (AGEs), with particular focus on their levels in the presence of hypertension or diabetes and prediabetes and their associations with arterial stiffness in outpatients with suspected or diagnosed hypertension. METHODS: Skin AGE accumulation was measured as autofluorescence on the left forearm using the skin autofluorescence Reader and expressed in arbitrary units in the range from 0 to 25...
January 2017: Pulse (Basel, Switzerland)
https://www.readbyqxmd.com/read/28229053/large-artery-stiffness-assessment-using-sphygmocor-technology
#12
REVIEW
Mark Butlin, Ahmad Qasem
Large artery stiffness assessment has been an integral part of the SphygmoCor technology since 1998. Aortic stiffness is approximated with non-invasive measurement of carotid-femoral pulse wave velocity, with improvements made with time to make the assessment procedure quicker and more user independent. Also standard in the devices is the ability to reliably calculate the central aortic waveform shape from a peripheral pressure waveform from either the brachial or radial artery. This waveform contains much information beyond peak and trough (systolic and diastolic pressure)...
January 2017: Pulse (Basel, Switzerland)
https://www.readbyqxmd.com/read/28219916/comparison-of-carotid-femoral-and-brachial-ankle-pulse-wave-velocity-in-association-with-target-organ-damage-in-the-community-dwelling-elderly-chinese-the-northern-shanghai-study
#13
Yuyan Lu, Mengyun Zhu, Bin Bai, Chen Chi, Shikai Yu, Jiadela Teliewubai, Henry Xu, Kai Wang, Jing Xiong, Yiwu Zhou, Hongwei Ji, Ximin Fan, Xuejing Yu, Jue Li, Jacques Blacher, Yi Zhang, Yawei Xu
BACKGROUND: Carotid-femoral pulse-wave velocity (cf-PWV) and brachial-ankle PWV (ba-PWV) are the 2 most frequently applied PWV measurements. However, little is known about the comparison of hypertensive target organ damage (TOD) with cf-PWV and ba-PWV. METHODS AND RESULTS: A total of 1599 community-dwelling elderly subjects (age >65 years) in northern Shanghai were recruited from June 2014 to August 2015. Both cf-PWV and ba-PWV were measured using SphygmoCor and VP1000 systems, respectively...
February 20, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28154165/heritability-of-vascular-structure-and-function-a-parent-child-study
#14
Justin R Ryder, Nathan D Pankratz, Donald R Dengel, James S Pankow, David R Jacobs, Alan R Sinaiko, Vasu Gooty, Julia Steinberger
BACKGROUND: Understanding the heritable contribution of vascular measures, from parent to offspring, may aid in risk stratification and atherosclerosis prevention efforts. We hypothesized that measures of vascular structure and function would be heritable in this cohort of parents and their adolescent offspring. METHODS AND RESULTS: High-resolution ultrasound scans of the brachial and carotid arteries were obtained in parents (n=558) and their offspring (n=369)...
February 2, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28154161/development-of-coronary-pulse-wave-velocity-new-pathophysiological-insight-into-coronary-artery-disease
#15
Brahim Harbaoui, Pierre-Yves Courand, Andrei Cividjian, Pierre Lantelme
BACKGROUND: Although aortic stiffness assessed by pulse wave velocity (PWV) is a strong predictor of coronary artery disease, the significance of local coronary stiffness has never been tackled. The first objective of this study was to describe a method of measuring coronary PWV (CoPWV) invasively and to describe its determinants. The second objective was to assess both CoPWV and aortic PWV in patients presenting with acute coronary syndromes or stable coronary artery disease. METHODS AND RESULTS: In 53 patients, CoPWV was measured from the delay in pressure wave and distance traveled as a pressure wire was withdrawn from the distal to the proximal coronary segment...
February 2, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28121840/calibration-of-sphygmocor
#16
Michael F O'Rourke
No abstract text is available yet for this article.
March 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28105372/association-between-central-blood-pressure-arterial-stiffness-and-mild-cognitive-impairment
#17
R Suleman, R Padwal, P Hamilton, A Senthilselvan, K Alagiakrishnan
BACKGROUND: To determine the relationship between central blood pressure (CBP) indices and mild cognitive impairment (MCI) in adults over the age of 50. METHODS: A cross-sectional study conducted using a non-invasive SphygmoCor XCEL device. CBP indices and brachial blood pressure were measured in 50 inpatients and outpatients. MCI was assessed using the Montreal Cognitive Assessment (MoCA) instrument and by the European Consortium Criteria (ECC). RESULTS: Seventy-six percent of subjects had hypertension, and 52% were diagnosed as having MCI using the ECC...
2017: Clinical Hypertension
https://www.readbyqxmd.com/read/28101819/high-central-aortic-rather-than-brachial-blood-pressure-is-associated-with-carotid-wall-remodeling-and-increased-arterial-stiffness-in-childhood
#18
Gonzalo Peluso, Victoria García-Espinosa, Santiago Curcio, Marco Marota, Juan Castro, Pedro Chiesa, Gustavo Giachetto, Daniel Bia, Yanina Zócalo
INTRODUCTION: In adults, central blood pressure (cBP) is reported to associate target organ damages (TODs) rather than peripheral blood pressure (pBP). However, data regarding the association of pre-clinical TODs with cBP and pBP in pediatric populations are scarce. AIM: To evaluate in children and adolescents the importance of cBP and pBP levels, in terms of their association with hemodynamic and vascular changes. METHODS: 315 subjects [age (mean/range) 12/8-18 years] were included...
March 2017: High Blood Pressure & Cardiovascular Prevention: the Official Journal of the Italian Society of Hypertension
https://www.readbyqxmd.com/read/28087911/-aortic-stiffness-and-its-influencing-factors-in-patients-with-chronic-kidney-disease
#19
Binxian Ye, Li Zhao, Wei Shen, Yan Ren, Bo Lin, Maosheng Chen, Junda Tang, Xinxin Jiang, Yiwen Li, Qiang He
Objective: To investigate the changes of aortic stiffness and its influencing factors in patients with chronic kidney diseases (CKD). Methods: Eightyfour patients with CKD from Department of Nephrology, Zhejiang Provincial People's Hospital were divided into the dialysis group (CKD stage 5, n=48) and non-dialysis group (CKD stage 3-5, n=36). Clinical data, biochemical parameters and echocardiography findings were collected. SphygmoCor pulse wave analysis system was used to obtain pulse wave analysis (PWA) parameters including central aortic systolic blood pressure (CSP), central pulse pressure (CPP), augmented pressure (AP), augmentation index (AIX), and heart rate 75-adjusted augmentation index (HR75AIX)...
May 25, 2016: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
https://www.readbyqxmd.com/read/28063813/assessment-of-vascular-function-in-low-socioeconomic-status-preschool-children-a-pilot-study
#20
Lama Ghazi, Tanja Dudenbostel, Daisy Xing, Deborah Ejem, Anne Turner-Henson, Cynthia Irwin Joiner, Olivia Affuso, Andres Azuero, Suzanne Oparil, David A Calhoun, Marti Rice, Fadi G Hage
Elevated brachial blood pressure (BP) in childhood tracks into adulthood. Central BP and measures of arterial stiffness, such as aortic augmentation index (AIx) and pulse wave velocity (PWV), have been associated with future cardiovascular disease. This pilot study assessed the feasibility of noninvasively measuring these parameters in preschool children and explored factors that may be associated with elevated BP in this age group. Brachial BP was measured using an electronic oscillometric unit (Dinamap PRO 100) and defined as elevated when systolic BP (SBP) and/or diastolic BP (DBP) was ≥ the 90th percentile for age, gender, and height...
December 24, 2016: Journal of the American Society of Hypertension: JASH
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