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pulse wave analysis

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https://www.readbyqxmd.com/read/28531895/arterial-stiffness-is-an-independent-risk-factor-for-anemia-after-percutaneous-native-kidney-biopsy
#1
Keiko Tanaka, Masashi Kitagawa, Akifumi Onishi, Toshio Yamanari, Ayu Ogawa-Akiyama, Koki Mise, Tatsuyuki Inoue, Hiroshi Morinaga, Haruhito A Uchida, Hitoshi Sugiyama, Jun Wada
BACKGROUND/AIMS: Bleeding is the most common complication after renal biopsy. Although numerous predictors of bleeding have been reported, it remains unclear whether arterial stiffness affects bleeding complications. METHOD: We performed an observational study of the renal biopsies performed in our division over an approximately 6-year period (May 2010 to May 2016). The clinical and laboratory factors were analyzed to reveal the risk factors associated with bleeding, with a focus on anemia (defined as a ≥10% decrease in hemoglobin [Hb] after biopsy)...
May 25, 2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/28528655/pulmonary-flow-as-an-improved-method-for-determining-cardiac-output-in-mice-after-myocardial-infarction
#2
Mathew J Platt, Jason S Huber, Keith R Brunt, Jeremy A Simpson
BACKGROUND: Echocardiography is a valuable noninvasive technique to estimate cardiac output (CO) from the left ventricle (LV) not only in clinical practice but also in small-animal experiments. CO is used to grade cardiac function and is especially important when investigating cardiac injury (e.g., myocardial infarction [MI]). Critically, MI deforms the LV, invalidating the assumptions fundamental to calculating of cardiac volumes directly from the LV. Thus, the purpose of this study was to determine if Doppler-derived blood flow through the pulmonary trunk (pulmonary flow [PF]) was an improved method over conventional LV-dependent echocardiography to accurately determine CO after MI...
June 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28526073/pulse-wave-velocity-and-cardiac-autonomic-function-in-type-2-diabetes-mellitus
#3
Stamatina Chorepsima, Ioanna Eleftheriadou, Anastasios Tentolouris, Ioannis Moyssakis, Athanasios Protogerou, Alexandros Kokkinos, Petros P Sfikakis, Nikolaos Tentolouris
BACKGROUND: Increased carotid-femoral pulse wave velocity (PWV) has been associated with incident cardiovascular disease, independently of traditional risk factors. Cardiac autonomic dysfunction is a common complication of diabetes and has been associated with reduced aortic distensibility. However, the association of cardiac autonomic dysfunction with PWV is not known. In this study we examined the association between cardiac autonomic function and PWV in subjects with type 2 diabetes mellitus...
May 19, 2017: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/28522100/pulse-wave-amplitude-reduction-as-a-surrogate-for-cortical-arousal-during-sleep-hypopnea-in-children
#4
Alessandro Amaddeo, Noria Medjahdi, Marta Fernandez-Bolanos, Sonia Khirani, Guillaume Baffet, Brigitte Fauroux
OBJECTIVES: The accuracy of respiratory polygraphy (RP) is limited because of the absence of electroencephalography (EEG). Pulse wave amplitude (PWA) reduction has been shown to be a marker of autonomic activation during arousal, and may represent a substitute for obstructive respiratory-related cortical arousal (RRCA). This study tested the hypothesis that PWA could be a surrogate for RRCA in detecting obstructive hypopnea (OH) in a pediatric population. MATERIALS AND METHODS: Two experienced readers scored 30 consecutive polysomnographies (PSG) using standard scoring rules...
June 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28515820/arterial-velocity-pulse-index-as-a-novel-marker-of-atherosclerosis-using-pulse-wave-analysis-on-high-sensitivity-troponin-t-in-hypertensive-patients
#5
Takashi Hitsumoto
BACKGROUND: The arterial velocity pulse index (AVI) is explored as a novel marker of atherosclerosis using pulse wave analysis in clinical settings. Recent clinical studies have reported that the level of high-sensitivity troponin T (hs-cTnT) is an important biomarker in hypertensive patients. The aim of this study was to clarify the impact of AVI on hs-cTnT in these patients. METHODS: This study enrolled 455 hypertensive outpatients (181 males and 274 females; mean age, 65 ± 11 years (mean ± standard deviation)) without a history of cardiovascular events...
April 2017: Cardiology Research
https://www.readbyqxmd.com/read/28515119/pulse-wave-velocity-predicts-response-to-renal-denervation-in-isolated-systolic-hypertension
#6
Karl Fengler, Karl-Philipp Rommel, Robert Hoellriegel, Stephan Blazek, Christian Besler, Steffen Desch, Gerhard Schuler, Axel Linke, Philipp Lurz
BACKGROUND: Renal sympathetic denervation seems to be less effective as a treatment for hypertension in patients with isolated systolic hypertension, a condition associated with elevated central arterial stiffness. Because isolated systolic hypertension can also be caused by wave reflection or increased cardiac output, a more differentiated approach might improve patient preselection for renal sympathetic denervation. We sought to evaluate the additional predictive value of invasive pulse wave velocity for response to renal sympathetic denervation in patients with combined versus isolated systolic hypertension...
May 17, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28514871/pulse-wave-velocity-retrospective-analysis-in-a-balkan-normotensive-and-hypertensive-population-a-study-of-9923-patients
#7
Dragan Lovic, Manolis S Kallistratos, Leonidas Poulimenos, Aggelos Skyrlas, V Stojanov, B Jakovljevic, M Zdravkovic, G Koracevic, Eftychia Chamodraka, Nikos Kouremenos, Andreas Pittaras, Peter Kokkinos, Pavlos Tsinivizov, Athanasios Manolis
We compared pulse wave velocity (PWV) between hypertensive patients and control patients to identify demographics and patient characteristics related to PWV. We retrospectively analyzed 9923 participants (3105 controls and 6818 hypertensive patients) from 5 outpatient hypertensive clinics (in Serbia and Greece). Pulse wave velocity had different distribution between controls and hypertensive patients ( P < .001). The magnitude of PWV increase was related to blood pressure (BP) category (from optimal to stage III hypertension; P < ...
January 1, 2017: Angiology
https://www.readbyqxmd.com/read/28513244/different-relationship-between-physical-activity-arterial-stiffness-and-metabolic-status-in-obese-subjects
#8
Hyung Joon Joo, Sang-A Cho, Jae-Young Cho, Seunghun Lee, Jae Hyung Park, Cheol Woong Yu, Soon Jun Hong, Do-Sun Lim
BACKGROUND: Although the relationship between physical activity and arterial stiffness has been shown in healthy persons, it remains controversial in obese persons. METHODS: From January to September 2014, we evaluated 795 obese subjects from 25 public health centers in Seoul. We compared physical activity and brachial-ankle pulse wave velocity (baPWV) between obese subjects with metabolic syndrome (MetS) (MO) and obese subjects without MetS (NMO). RESULTS: The MO group had more men, higher body mass index (BMI), higher fasting glucose level, lower high-density lipoprotein-cholesterol level, and higher triglyceride level...
May 17, 2017: Journal of Physical Activity & Health
https://www.readbyqxmd.com/read/28507608/roles-of-fasting-and-postprandial-blood-glucose-in-the-effect-of-type-2-diabetes-on-central-arterial-stiffness-a-5-year-prospective-community-based-analysis
#9
Shihui Fu, Wenji Chen, Leiming Luo, Ping Ye
BACKGROUND: Cardiovascular disease constitutes a major challenge for the health of community-dwelling population, it is essential to delay the development of atherosclerosis. However, long-term prospective studies analyzing the effect of type 2 diabetes (T2D) on central arterial stiffness are lacking, and roles of fasting and postprandial blood glucose (FBG and PBG) in this effect are controversial. Purpose of the current analysis was to investigate the effect of T2D on central arterial stiffness during the 5 years of follow-up, and explore whether both FBG and PBG were determinants of this effect in Chinese community-dwelling population...
2017: Diabetology & Metabolic Syndrome
https://www.readbyqxmd.com/read/28504936/wave-mode-discrimination-of-coded-ultrasonic-guided-waves-using-two-dimensional-compressed-pulse-analysis
#10
Sergio Malo, Sina Fateri, Makis Livadas, Cristinel Mares, Tat-Hean Gan
Ultrasonic guided waves testing is a technique successfully used in many industrial scenarios worldwide. For many complex applications, the dispersive nature and multimode behavior of the technique still poses a challenge for correct defect detection capabilities. In order to improve the performance of the guided waves a 2-D compressed pulse analysis is presented in this paper. This novel technique combines the use of pulse compression and dispersion compensation in order to improve the signal-tonoise ratio and temporal-spatial resolution of the signals...
May 11, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28502918/ability-of-the-ankle-brachial-index-and-brachial-ankle-pulse-wave-velocity-to-predict-the-3-month-outcome-in-patients-with-non-cardioembolic-stroke
#11
Hayato Matsushima, Naohisa Hosomi, Naoyuki Hara, Takeshi Yoshimoto, Shuichiro Neshige, Ryuhei Kono, Takahiro Himeno, Shinichi Takeshima, Kazuhiro Takamatsu, Yutaka Shimoe, Taisei Ota, Hirofumi Maruyama, Toshiho Ohtsuki, Masaru Kuriyama, Masayasu Matsumoto
AIM: Both the ankle brachial index (ABI) and brachial-ankle pulse wave velocity (baPWV) are surrogates for atherosclerosis. In this study, we aimed to evaluate the ability of ABI and baPWV to predict stroke outcome in patients with first-ever non-cardioembolic stroke. METHODS: This study included consecutive patients with first-ever non-cardioembolic stroke admitted within 1 week after onset to Ota Memorial Hospital between January 2011 and December 2013. Baseline characteristics and National Institutes of Health stroke scale scores at admission were noted...
May 15, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/28501727/methods-to-evaluate-arterial-structure-and-function-in-children-state-of-the-art-knowledge
#12
REVIEW
Piotr Skrzypczyk, Małgorzata Pańczyk-Tomaszewska
BACKGROUND: With increasing rates of hypertension, obesity, and diabetes in the pediatric population, wide available, and reproducible methods are necessary to evaluate arterial structure and function in children and adolescents. METHODS: MEDLINE/Pubmed was searched for articles published in years 2012-2017 on methodology of, current knowledge on, and limitations of the most commonly used methods to evaluate central, proximal and coronary arteries, as well as endothelial function in pediatric patients...
May 11, 2017: Advances in Medical Sciences
https://www.readbyqxmd.com/read/28495449/peripheral-circulatory-disorders-in-essential-thrombocythemia
#13
Rafał Małecki, Małgorzata Gacka, Żanna Fiodorenko-Dumas, Ilias Dumas, Jacek Kwiatkowski, Rajmund Adamiec, Małgorzata Kuliszkiewicz-Janus
A significant amount of patients with essential thrombocythemia (ET) complain of symptoms including distal parts of the extremities (e.g., paresthesias or Raynaud's phenomenon). The aim of the present study was to examine peripheral circulation in the upper extremities of individuals with ET. The study included 45 ET patients and 30 control subjects. All participants were subjected to thermography, photoplethysmography, impedance plethysmography, and applanation tonometry pulse wave analysis. The patients with ET differed significantly from the control subjects in terms of 3rd finger skin temperature (mean 31...
May 7, 2017: Microvascular Research
https://www.readbyqxmd.com/read/28494965/multiscale-determinants-of-delayed-afterdepolarization-amplitude-in-cardiac-tissue
#14
Christopher Y Ko, Michael B Liu, Zhen Song, Zhilin Qu, James N Weiss
Spontaneous calcium (Ca) waves in cardiac myocytes underlie delayed afterdepolarizations (DADs) that trigger cardiac arrhythmias. How these subcellular/cellular events overcome source-sink factors in cardiac tissue to generate DADs of sufficient amplitude to trigger action potentials is not fully understood. Here, we evaluate quantitatively how factors at the subcellular scale (number of Ca wave initiation sites), cellular scale (sarcoplasmic reticulum (SR) Ca load), and tissue scale (synchrony of Ca release in populations of myocytes) determine DAD features in cardiac tissue using a combined experimental and computational modeling approach...
May 9, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28494917/validation-of-the-nexfin%C3%A2-non-invasive-continuous-blood-pressure-monitoring-validated-against-riva-rocci-korotkoff-in-a-bariatric-patient-population
#15
Sjaak Pouwels, Bianca Lascaris, Simon W Nienhuijs, R Arthur Bouwman, Marc P Buise
STUDY OBJECTIVE: The present study aimed to validate the Nexfin® monitor and to assess the accuracy compared to classical sphygmomanometry (Riva-Rocci/Korotkoff (RRK)) blood pressure (BP) measurements in patients with obesity scheduled for bariatric surgery. DESIGN: Validation study. SETTING: Outpatient clinic for bariatric surgery. PATIENTS: 33 patients scheduled for bariatric surgery. MEASUREMENTS: The validation process was done according to the protocols developed by the European Society of Hypertension from 2010...
June 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28493996/left-ventricular-functional-structural-and-energetic-effects-of-normal-aging-comparison-with-hypertension
#16
Jehill D Parikh, Kieren G Hollingsworth, Dorothy Wallace, Andrew M Blamire, Guy A MacGowan
OBJECTIVES: Both aging and hypertension are significant risk factors for heart failure in the elderly. The purpose of this study was to determine how aging, with and without hypertension, affects left ventricular function. METHODS: Cross-sectional study of magnetic resonance imaging and 31P spectroscopy-based measurements of left ventricular structure, global function, strains, pulse wave velocity, high energy phosphate metabolism in 48 normal subjects and 40 treated hypertensive patients (though no other cardiovascular disease or diabetes) stratified into 3 age deciles from 50-79 years...
2017: PloS One
https://www.readbyqxmd.com/read/28491119/association-of-adipokines-with-blood-pressure-arterial-elasticity-and-cardiac-markers-in-dialysis-patients-cross-sectional-analysis-of-baseline-data-from-a-cohort-study
#17
Wenjin Liu, Lei Jiang, Jianping Chen, Chaoqing Gao, Jianmei Zhou, Jiajun Zhou, Youwei Bai, Hong Chu, Wei Fan, Liang Wang, Zhuxing Sun, Xiurong Li, Junwei Yang
BACKGROUND: Adipokines are a set of cytokines secreted by white adipose tissue that have been suggested to be involved in the development of cardiovascular diseases. We aimed to evaluate the cross-sectional associations of a panel of representative adipokines with cardiovascular measures in a cohort of hemodialysis patients. METHODS: We measured plasma adiponectin, resistin, plasminogen activator inhibitor-1 (PAI-1), leptin, monocyte chemotactic protein 1 (MCP-1) and adipsin levels in 366 dialysis patients and 60 healthy controls...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/28486964/lipopolysaccharide-binding-protein-is-associated-with-arterial-stiffness-in-patients-with-type-2-diabetes-a-cross-sectional-study
#18
Takeshi Sakura, Tomoaki Morioka, Atsushi Shioi, Yoshinori Kakutani, Yuya Miki, Yuko Yamazaki, Koka Motoyama, Katsuhito Mori, Shinya Fukumoto, Tetsuo Shoji, Masanori Emoto, Masaaki Inaba
BACKGROUND: Lipopolysaccharide (LPS)-binding protein (LBP) is an acute-phase reactant that mediates immune responses triggered by LPS. Recent evidence indicates the association of circulating LBP levels with obesity, diabetes, and cardiovascular diseases. In this study, we aimed to investigate the relationship between serum LBP levels and arterial stiffness in patients with type 2 diabetes. METHODS: A total of 196 patients with type 2 diabetes, including 101 men and 95 women, were enrolled in this cross-sectional study...
May 10, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28486735/sedentary-behavior-and-arterial-stiffness-in-adults-with-and-without-metabolic-syndrome
#19
Lucimere Bohn, Ana Ramoa, Gustavo Silva, Nuno Silva, Sandra Marlene Abreu, Fernando Ribeiro, Pierre Boutouyrie, Stéphane Laurent, José Oliveira
This study aimed to investigate whether sedentary time (Sed) and physical activity (PA) are associated with arterial stiffness in individuals with and without metabolic syndrome (MetS). This cross-sectional study comprised 197 individuals (47±13 years; 58% female) from a primary health care centre. Arterial stiffness was assessed using carotid-femoral pulse wave velocity (cfPWV). Metabolic syndrome was determined as clustering of at least 3 out of 5 risk factors (central obesity, hypertension, impaired glucose, triglycerides and high-density lipoprotein cholesterol)...
May 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28486172/synergistic-effect-of-low-k-and-d-vitamin-status-on-arterial-stiffness-in-a-general-population
#20
Otto Mayer, Jitka Seidlerová, Peter Wohlfahrt, Jan Filipovský, Renata Cífková, Václava Černá, Alena Kučerová, Martin Pešta, Radka Fuchsová, Ondřej Topolčan, Kelly M C Jardon, Nadja E A Drummen, Cees Vermeer
Both vitamins K and D are nutrients with pleiotropic functions in human tissues. The metabolic role of these vitamins overlaps considerably in calcium homeostasis. We analyzed their potential synergetic effect on arterial stiffness. In a cross-sectional study, we analyzed aortic pulse wave velocity (aPWV) in 1023 subjects from the Czech post-MONICA study. Desphospho-uncarboxylated matrix γ-carboxyglutamate protein (dp-ucMGP), a biomarker of vitamin K status, was measured by sandwich ELISA and 25-hydroxyvitamin D3 (25-OH-D3) by a commercial immunochemical assay...
April 22, 2017: Journal of Nutritional Biochemistry
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