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Sphygmocor

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https://www.readbyqxmd.com/read/29339276/reliability-of-oscillometric-central-blood-pressure-and-central-systolic-loading-in-individuals-over-50-years-effects-of-posture-and-fasting
#1
Andrew Mitchelmore, Lee Stoner, Danielle Lambrick, Simon Jobson, James Faulkner
BACKGROUND AND AIMS: The between-day reliability of oscillometric pulse wave analysis has been demonstrated in a young, healthy population but not in an older sample. This study examined the between-day reliability of the SphygmoCor XCEL in individuals over 50 years. As blood pressure is measured in a range of postures and fasting states (supine/seated, fasted/non-fasted), this study also investigated the effect of these variables on central blood pressure and central systolic loading...
December 27, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29324835/subject-specific-pulse-wave-propagation-modeling-towards-enhancement-of-cardiovascular-assessment-methods
#2
Jan Poleszczuk, Malgorzata Debowska, Wojciech Dabrowski, Alicja Wojcik-Zaluska, Wojciech Zaluska, Jacek Waniewski
Cardiovascular diseases are the leading cause of death worldwide. Pulse wave analysis (PWA) technique, which reconstructs and analyses aortic pressure waveform based on non-invasive peripheral pressure recording, became an important bioassay for cardiovascular assessment in a general population. The aim of our study was to establish a pulse wave propagation modeling framework capable of matching clinical PWA data from healthy individuals on a per-subject basis. Radial pressure profiles from 20 healthy individuals (10 males, 10 females), with mean age of 42 ± 10 years, were recorded using applanation tonometry (SphygmoCor, AtCor Medical, Australia) and used to estimate subject-specific parameters of mathematical model of blood flow in the system of fifty-five arteries...
2018: PloS One
https://www.readbyqxmd.com/read/29304064/hyperleptinemia-positively-associated-with-central-arterial-stiffness-in-hemodialysis-patients
#3
Chiu-Huang Kuo, Yu-Li Lin, Chung-Jen Lee, Chih-Hsien Wang, Yu-Hsien Lai, Hung-Hsiang Liou, Bang-Gee Hsu
OBJECTIVE: Leptin plays a role in stimulating vascular inflammation, vascular smooth muscle hypertrophy, and augmenting blood pressure, which contributes to the pathogenesis of atherosclerosis and leads to arterial stiffness. This vascular damage, measured by carotid-femoral pulse wave velocity (cfPWV), is recognized as an independent predictor of cardiovascular mortality in hemodialysis (HD) patients. The aim of this study was to evaluate the relationship between serum leptin and arterial stiffness in HD patients...
2018: PloS One
https://www.readbyqxmd.com/read/29222865/multipoint-pacing-improves-peripheral-hemodynamic-response-non-invasive-assessment-using-radial-artery-tonometry
#4
Giuseppe Ciconte, Žarko Ćalović, Gabriele Vicedomini, Amarild Cuko, Luke C McSpadden, Chunlan Jiang, Kyungmoo Ryu, Igor Caporaso, Robert Stutz, Dean Winter, Massimo Saviano, Raffaele Vitale, Manuel Conti, Vincenzo Santinelli, Carlo Pappone
BACKGOUND: Multipoint left ventricular (LV) pacing (MultiPoint™ Pacing [MPP], Abbott) improves the response rate to cardiac resynchronization therapy (CRT). We evaluated the feasibility of non-invasive radial artery tonometry (RAT) to characterize arterial pressure morphology changes (pre-ejection period [PEP] and ejection duration [ED]) between conventional CRT and MPP pacing interventions. METHODS: Patients with a MPP-enabled CRT device (Quadra Assura MP™, Abbott) underwent non-invasive RAT assessment (SphygmoCor CVMS, AtCor Medical Inc...
December 9, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29217881/reduced-baroreflex-sensitivity-decreased-heart-rate-variability-with-increased-arterial-stiffness-in-predialysis
#5
C Lal, M Kaur, A K Jaryal, K K Deepak, D Bhowmik, S K Agarwal
High cardiovascular morbidity and mortality is observed in predialytic chronic kidney disease (CKD) patients. The underlying mechanism of cardiovascular dysfunction often remains unclear. The present study was designed to perform multiparametric assessment of baroreflex sensitivity (BRS), arterial stiffness indices, and cardiovascular variabilities (heart rate variability [HRV] and blood pressure variability [BPV]) together in predialytic CKD patients; compare it with normal healthy controls; and determine their relationships in predialytic nondiabetic CKD patients...
November 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/29215398/a-genetic-risk-score-for-fasting-plasma-glucose-is-independently-associated-with-arterial-stiffness-a-mendelian-randomization-study
#6
Mikael Gottsäter, George Hindy, Marju Orho-Melander, Peter M Nilsson, Olle Melander
BACKGROUND: Arterial stiffness is known to be associated with a number of clinical conditions including hypertension, diabetes and dyslipidemia, and may predict cardiovascular events and mortality. However, causal links are hard to establish. Results from genome-wide association studies have identified only a few single nucleotide polymorphisms associated with arterial stiffness, the results have been inconsistent between studies and overlap with other clinical conditions is lacking. Our aim was to investigate a potential shared set of risk single nucleotide polymorphisms between relevant cardiometabolic traits and arterial stiffness...
December 5, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/29192957/the-efficacy-and-safety-of-valsartan-and-combination-of-valsartan-and-hydrochlorothiazide-in-the-treatment-of-patients-with-mild-to-moderate-arterial-hypertension
#7
Rok Accetto, Jiri Widimsky, Josip Vincelj, Yuriy Sirenko, Irina Chazova Yevgenyevna, Breda Barbic Zagar
BACKGROUND AND AIM: The aim of the study was to establish the effect of valsartan and combination of valsartan and hydrochlorotiazide (HCTZ) in a wide population of patients with mild to moderate arterial hypertension on pulse wave velocity (PWV) and central blood pressure (CBP). METHODS: International, multicenter, open labelled, prospective trial. After one week of washout in previously treated patients, the patients were treated for 16 weeks according to the protocol...
December 1, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/29084016/validation-of-a-new-piezoelectric-device-for-noninvasive-measurement-of-central-aortic-systolic-blood-pressure
#8
Paula E Cuffaro, Margarita S Morales, Jessica Barochiner, Marcelo A Rada, José Alfie, Lucas S Aparicio, Carlos R Galarza, Rubén G Micali, Marcos J Marin, Gabriel D Waisman
OBJECTIVE: The objective of this study was to compare the aortic piezoelectric device for noninvasive measurement of central aortic systolic blood pressure (cSBP) with the SphygmoCor. PARTICIPANTS AND METHODS: A total of 85 participants from both sexes, aged 18-80 years, were stratified into three age groups (<30, 30-60, >60 years), with an equal number of healthy volunteers and hypertensive patients. We performed three cSBP measurements with each device, in an alternate manner, using the Bland-Altman method to determine the level of agreement...
October 27, 2017: Blood Pressure Monitoring
https://www.readbyqxmd.com/read/29073803/the-usefulness-of-a-single-arm-cuff-oscillometric-method-arteriograph-to-assess-changes-in-central-aortic-blood-pressure-and-arterial-stiffness-by-antihypertensive-treatment-results-from-the-doxazosin-ramipril-study
#9
Andreas Jekell, Thomas Kahan
PURPOSE: Inhibition of the renin-angiotensin system may have effects on vascular structure and function beyond the effects on blood pressure (BP) reduction. We studied the ability of a single arm cuff oscillometric method (Arteriograph, TensioMed, Hungary) to assess effects of antihypertensive treatment on BP and arterial stiffness. Furthermore, this technique was compared to pulse wave analysis and applanation tonometry (SphygmoCor, AtCor Medical, Australia). MATERIALS AND METHODS: Brachial and aortic BP, augmentation index (AIx), and carotid-femoral pulse wave velocity (PWV) was simultaneously assessed by both techniques in 71 untreated hypertensive patients...
October 26, 2017: Blood Pressure
https://www.readbyqxmd.com/read/29059329/short-term-repeatability-of-noninvasive-aortic-pulse-wave-velocity-assessment-comparison-between-methods-and-devices
#10
Andrea Grillo, Gianfranco Parati, Matteo Rovina, Francesco Moretti, Lucia Salvi, Lan Gao, Corrado Baldi, Giovanni Sorropago, Andrea Faini, Sandrine C Millasseau, Filippo Scalise, Renzo Carretta, Paolo Salvi
BACKGROUND: Aortic pulse wave velocity (PWV) is an indirect index of arterial stiffness and an independent cardiovascular risk factor. Consistency of PWV assessment over time is thus an essential feature for its clinical application. However, studies providing a comparative estimate of the reproducibility of PWV across different noninvasive devices are lacking, especially in the elderly and in individuals at high cardiovascular risk. METHODS: Aimed at filling this gap, short-term repeatability of PWV, estimated with 6 different devices (Complior Analyse, PulsePen-ETT, PulsePen-ET, SphygmoCor Px/Vx, BPLab, and Mobil-O-Graph), was evaluated in 102 high cardiovascular risk patients hospitalized for suspected coronary artery disease (72 males, 65 ± 13 years)...
October 20, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28992758/aldosterone-breakthrough-does-not-alter-central-hemodynamics
#11
Andrew Beenken, Andrew S Bomback
INTRODUCTION: Angiotensin-converting enzyme inhibitors and angiotensin receptor blockers are widely used in congestive heart failure and chronic kidney disease, but up to 40% of patients will experience aldosterone breakthrough, with aldosterone levels rising above pre-treatment levels after 6-12 months of renin-angiotensin-aldosterone system blockade. Aldosterone breakthrough has been associated with worsening congestive heart failure and chronic kidney disease, yet the pathophysiology remains unclear...
October 2017: Journal of the Renin-angiotensin-aldosterone System: JRAAS
https://www.readbyqxmd.com/read/28978987/validity-of-the-augmentation-index-and-pulse-pressure-amplification-as-determined-by-the-sphygmocor-xcel-device-a-comparison-with-invasive-measurements
#12
Atsushi Nakagomi, Toshihiro Shoji, Sho Okada, Yuji Ohno, Yoshio Kobayashi
Augmentation index (AIx) and pulse pressure (PP) amplification can be determined by the SphygmoCor XCEL device in an operator-independent manner. This study aimed to examine its validity against invasive measurements. Simultaneous recordings of central aortic pressure waveforms were performed with oscillometric and high-fidelity invasive methods in 35 patients who underwent coronary arteriography. Brachial blood pressure was also recorded using the two methods. AIx for the aortic pressure waveform was defined as the ratio of augmentation pressure to PP...
October 5, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/28971963/arterial-stiffness-and-incidence-of-diabetes-a-population-based-cohort-study
#13
Iram Faqir Muhammad, Yan Borné, Gerd Östling, Cecilia Kennbäck, Mikael Gottsäter, Margaretha Persson, Peter M Nilsson, Gunnar Engström
OBJECTIVE: Diabetes is known to be associated with increased arterial stiffness. However, the temporal association between increased carotid-femoral pulse wave velocity (c-f PWV) and diabetes is unclear. The aim of this study is to explore the relationship between arterial stiffness, as determined by c-f PWV, and incidence of diabetes. RESEARCH DESIGN AND METHODS: The study population included participants from the Malmö Diet and Cancer cardiovascular cohort, using measurements from the 2007-2012 reexamination as baseline...
September 29, 2017: Diabetes Care
https://www.readbyqxmd.com/read/28948506/comparative-analysis-of-arterial-parameters-variations-associated-with-inter-individual-variations-in-peripheral-and-aortic-blood-pressure-cross-sectional-study-in-healthy-subjects-aged-2-84%C3%A2-years
#14
Yanina Zócalo, Santiago Curcio, Victoria García-Espinosa, Pedro Chiesa, Gustavo Giachetto, Daniel Bia
INTRODUCTION: The association between arterial parameters and blood pressure (BP) interindividual variations could depend on the arterial segment, BP component (systolic, SBP; diastolic, DBP; pulse pressure, PP) and/or on whether central (cBP) or peripheral (pBP) BP variations are considered. AIM: To assess and compare arterial parameters variations associated with interindividual variations in cBP and pBP. METHODS: Healthy subjects (n = 923; 488 males, 2-84 years) were included...
December 2017: High Blood Pressure & Cardiovascular Prevention: the Official Journal of the Italian Society of Hypertension
https://www.readbyqxmd.com/read/28942095/changes-in-truncal-obesity-and-fat-distribution-predict-arterial-health
#15
Frank E Corrigan, Heval Mohamed Kelli, Devinder S Dhindsa, Robert E Heinl, Ibhar Al Mheid, Muhammad Hammadah, Salim S Hayek, Salman Sher, Danny J Eapen, Greg S Martin, Arshed A Quyyumi
BACKGROUND: Truncal obesity is associated with metabolic syndrome and cardiovascular risk. Although vascular health is influenced by weight, it is not known whether changes in fat distribution modulate arterial function. OBJECTIVE: We assessed how changes in truncal (android) fat at 1 year affect arterial stiffness and endothelial function. METHODS: We recruited 711 healthy volunteers (235 males, age 48 ± 11 years) into the Emory Predictive Health Study; 498 returned at 1 year...
September 1, 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/28931072/high-prevalence-of-non-dipping-blood-pressure-and-vascular-stiffness-in-hiv-infected-south-africans-on-antiretrovirals
#16
M S Borkum, J M Heckmann, K Manning, J A Dave, N S Levitt, B L Rayner, N Wearne
BACKGROUND: HIV-infected individuals are at increased risk of tissue inflammation and accelerated vascular aging ('inflamm-aging'). Abnormal diurnal blood pressure (BP) rhythms such as non-dipping may contribute to an increased risk of cardiovascular and cerebrovascular events in HIV infected individuals. However, little data exists on ambulatory blood pressure (ABP) and measures of vascular stiffness in the black African HIV infected population. METHODS: This is a cross-sectional analysis of otherwise well, HIV infected outpatients on ART for >5 years...
2017: PloS One
https://www.readbyqxmd.com/read/28914629/association-between-ambulatory-blood-pressure-values-and-central-aortic-pressure-in-a-large-population-of-normotensive-and-hypertensive-patients
#17
Ana Rouxinol-Dias, Sara Araújo, José A Silva, Loide Barbosa, Jorge Polónia
OBJECTIVE: Our aim was to examine the association of ambulatory blood pressure monitoring (ABPM) and central blood pressure (CBP) data in a large set of normotensive and hypertensive patients and its relation with pulse wave velocity (PWV). PATIENTS AND METHODS: This cross-sectional study was carried out in a single centre and included 2864 individuals who carried out an ABPM, measurement of CBP from the aortic waveform (SphygmoCor) and carotid-femoral PWV (Complior)...
September 13, 2017: Blood Pressure Monitoring
https://www.readbyqxmd.com/read/28882449/contribution-of-backward-and-forward-wave-pressures-to-age-related-increases-in-aortic-pressure-in-a-community-sample-not-receiving-antihypertensive-therapy
#18
Bryan Hodson, Gavin R Norton, Imraan Ballim, Pinhas Sareli, Angela J Woodiwiss
Reports on the contribution of aortic forward (Pf) and backward (Pb) wave pressures to age-related increases in central aortic pulse pressure (PPc) have been confounded by the use of participants receiving antihypertensive therapy. We assessed the relative contribution of Pf and Pb to age-related increases in PPc (radial applanation tonometry and SphygmoCor software using an assumed triangular wave for wave separation analysis) in 892 community participants not receiving antihypertensive therapy. We validated our results using aortic flow waves (echocardiography) for wave separation analysis in 254 of these participants...
August 24, 2017: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/28860092/high-serum-adipocyte-fatty-acid-binding-protein-level-as-a-potential-biomarker-of-aortic-arterial-stiffness-in-hypertensive-patients-with-metabolic-syndrome
#19
Ming-Chun Chen, Bang-Gee Hsu, Chung-Jen Lee, Chiu-Fen Yang, Ji-Hung Wang
BACKGROUND: The adipocyte-fatty-acid-binding protein (A-FABP) has been implicated in arterial stiffness, metabolic syndrome (MetS), and cardiovascular disease. We aimed to determine the relationship among serum A-FABP concentration, cardiometabolic risk factors, and central arterial stiffness in a hypertensive population. METHODS: Fasting blood samples and baseline characteristics were obtained from 110 hypertensive patients. Serum A-FABP concentrations were determined by enzyme immunoassay kit...
October 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28855085/the-impact-of-accelerometer-wear-location-on-the-relationship-between-step-counts-and-arterial-stiffness-in-adults-treated-for-hypertension-and-diabetes
#20
Alexandra B Cooke, Stella S Daskalopoulou, Kaberi Dasgupta
OBJECTIVES: Accelerometer placement at the wrist is convenient and increasingly adopted despite less accurate physical activity (PA) measurement than with waist placement. Capitalizing on a study that started with wrist placement and shifted to waist placement, we compared associations between PA measures derived from different accelerometer locations with a responsive arterial health indicator, carotid-femoral pulse wave velocity (cfPWV). DESIGN: Cross-sectional study...
August 24, 2017: Journal of Science and Medicine in Sport
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