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Karen Brastad Evensen, Michael O'Rourke, Fabrice Prieur, Sverre Holm, Per Kristian Eide
This study explored the hypothesis that the central aortic blood pressure (BP) waveform may be used for non-invasive estimation of the intracranial pressure (ICP) waveform. Simultaneous invasive ICP and radial artery BP waveforms were measured in 29 individuals with idiopathic normal pressure hydrocephalus (iNPH). The central aortic BP waveforms were estimated from the radial artery BP waveforms using the SphygmoCor system. For each individual, a transfer function estimate between the central aortic BP and the invasive ICP waveforms was found (Intra-patient approach)...
March 16, 2018: Scientific Reports
Kannayiram Alagiakrishnan, Ruojin Bu, Peter Hamilton, Ambikaipakan Senthilselvan, Raj Padwal
Background: Orthostatic hypotension (OH) is associated with falls and cardiovascular events. There is growing evidence that central blood pressure (CBP) is better than peripheral blood pressure (PBP) in predicting adverse outcomes. The objectives of this study were to assess 1) the prevalence of OH identified using PBP and CBP and the levels of agreement, 2) the respective associations between OH and falls and cardiovascular comorbidities, by PBP and CBP, and 3) the association of OH with arterial wall stiffness markers (augmentation pressure (AP) and augmentation index (AI))...
April 2018: Journal of Clinical Medicine Research
Yi-Bang Cheng, Qian-Hui Guo, Dong-Yan Zhang, Ying Wang, Qi-Fang Huang, Chang-Sheng Sheng, Ji-Guang Wang, Jan A Staessen, Yan Li
OBJECTIVE: Carotid-femoral pulse wave velocity (cfPWV) was associated with serum parathyroid hormone (PTH) in untreated Chinese. We investigated in the same cohort whether cfPWV, brachial-ankle (baPWV) and heart-brachial (hbPWV) pulse wave velocity (PWV) were associated with rs6127099 (CYP24A1) and rs4074995 (RGS14). A previously published genome-wide association study demonstrated that each additional copy of the T (rs6127099) or G (rs4074995) allele was associated with a 7% or 3% higher serum PTH, respectively...
March 5, 2018: Blood Pressure
Dhananjay Yadav, Suk-Jeong Kim, Jae-Ryong Kim, Kyung-Hyun Cho
BACKGROUND: Central blood pressure is closely related to the important cardiovascular intermediate end points, such as vascular hypertrophy and extent of carotid atherosclerosis. Therefore it is prudent to study correlation among central aortic blood pressure, body composition, lipid profiles, and pulse wave velocity in population-based study. Consequently, we investigate the correlation between central aortic blood pressure and other risk parameters of hypertension such as body composition and lipid profile...
February 27, 2018: Clinical and Experimental Hypertension: CHE
Matthew J Burns, Jeremy D Seed, Anthony V Incognito, Connor J Doherty, Karambir Notay, Philip J Millar
Prior studies demonstrating clinical significance of noninvasive estimates of central blood pressure (BP) and pulse wave reflection have relied primarily on discrete resting measures. The aim of this study was to compare central BP and pulse wave reflection measures sampled during a single resting laboratory visit against those obtained under ambulatory conditions. The secondary aim was to investigate the reproducibility of ambulatory central BP and pulse wave reflection measurements. Forty healthy participants (21 males; 24 ± 3 years) completed three measurements of brachial artery pulse wave analysis (Oscar 2 with SphygmoCor Inside) in the laboratory followed by 24 hours of ambulatory monitoring...
February 10, 2018: Journal of the American Society of Hypertension: JASH
A Namugowa, J Iputo, J Wandabwa, A Meeme, G A B Buga, S Abura, Y Y Stofile
Women with pre-eclampsia have an increased risk of cardiovascular disease later in life. The aim of the study was to establish the presence and pattern of arterial stiffness in women previously with pre-eclampsia from a semi-rural region of South Africa. This was a prospective longitudinal study which involved 36 previously pre-eclamptic women and 86 non-pregnant controls (NPC) who had a past history of non-complicated pregnancy. Maternal wave reflection (augmentation index) and carotid-femoral pulse wave velocity were assessed noninvasively, using applanation tonometry with the SphygmoCor device...
February 23, 2018: Clinical and Experimental Hypertension: CHE
Yu-Shan Fu, Ji-Hung Wang, Chung-Jen Lee, Bang-Gee Hsu
Purpose: Angiopoietin-like protein 3 (ANGPTL3) plays an important role in lipid metabolism and angiogenesis and is elevated in familial hypercholesterolemia, metabolic syndrome, and insulin resistance. This study aims to evaluate the relationship between the fasting serum ANGPTL3 levels and the aortic augmentation index (AIx) in patients with coronary artery disease (CAD). Materials and methods: Fasting blood samples were obtained from 100 patients with CAD. The AIx was measured using a validated tonometry system (SphygmoCor)...
2018: Therapeutics and Clinical Risk Management
Shikai Yu, Jing Xiong, Yuyan Lu, Chen Chi, Jiadela Teliewubai, Bin Bai, Hongwei Ji, Yiwu Zhou, Ximin Fan, Jacques Blacher, Jue Li, Yi Zhang, Yawei Xu
We aimed to investigate the prevalence of central hypertension and its association with target organ damage (TOD). 1983 community-dwelling elderly Chinese people were recruited for this analysis. Brachial and central blood pressure (BP) were measured by an oscillometric device and SphygmoCor (type I device), respectively. Brachial hypertension was defined by brachial systolic BP/diastolic BP ≥140/90 mmHg or using antihypertensive medications. Central hypertension was defined by central systolic BP/diastolic BP ≥130/90 mmHg or using antihypertensive medications...
January 3, 2018: Journal of the American Society of Hypertension: JASH
Hideyuki Mukai, Oskar Svedberg, Bengt Lindholm, Lu Dai, Olof Heimbürger, Peter Barany, Björn Anderstam, Peter Stenvinkel, Abdul Rashid Qureshi
Background: The risk of cardiovascular disease (CVD) is predicted by Framingham's CVD risk scores (FRS) but the high CVD-related mortality in patients with chronic kidney disease (CKD) is only partially explained by traditional CVD risk markers. Therefore, there is a need to explore whether other CVD risk markers may improve risk prediction. Although arterial stiffness measured by augmentation index (AIx) and tissue content of advanced glycation end-products (AGEs) measured by skin autofluorescence (SAF) are two biomarkers that associate with CVD and mortality in CKD, it is not known how they compare with FRS...
January 25, 2018: Nephrology, Dialysis, Transplantation
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
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
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
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
BACKGROUND: Multipoint left ventricular (LV) pacing (MultiPoint™ Pacing [MPP], Abbott, Sylmar, CA, USA) improves the response rate to cardiac resynchronization therapy (CRT). We evaluated the feasibility of noninvasive 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 noninvasive RAT assessment (SphygmoCor CVMS, AtCor Medical Inc...
February 2018: Pacing and Clinical Electrophysiology: PACE
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
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...
April 2018: Journal of Hypertension
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 hydrochlorothiazide (HCTZ) on pulse wave velocity (PWV) and central blood pressure (CBP) in a large population of patients with mild to moderate arterial hypertension. METHODS: This was an international, multicentre, open-label, prospective trial. After one week of washout in previously treated patients, 74 subjects were treated with valsartan or valsartan combined with HCTZ for 16 weeks according to the protocol...
2018: Kardiologia Polska
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
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
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)...
December 8, 2017: American Journal of Hypertension
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
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