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pulse wave analysis

Alexandra B Cooke, Vincent Ta, Sameena Iqbal, Yessica-Haydee Gomez, Thomas Mavrakanas, Paul Barré, Murray Vasilevsky, Elham Rahme, Stella S Daskalopoulou
Objectives: Regular exercise is known to reduce arterial stiffness (AS) in hemodialysis patients. However, the impact of a more realistic intradialytic form of exercise, such as pedaling, is unclear. We aimed to examine 1) the effect of intradialytic pedaling exercise on AS over 4 months, and 2) the longer-term effect of pedaling on AS 4 months after exercise cessation. Methods: Patients on stable in-center hemodialysis (3x/week) were randomly assigned 1:1 to either intradialytic pedaling exercise (EX) or to a control group receiving usual hemodialysis (nonEX) for 4 months...
November 6, 2017: American Journal of Hypertension
Stefano Salvioli, Maddalena Guidi, Giulia Marcotulli
Plantar heel pain is one of the most common causes of pain and musculoskeletal pathologies of the foot. The aim of this systematic review was to identify the most effective, conservative and non-pharmacological treatments regarding pain in patients with plantar heel pain. The authors searched 5 databases and included only randomized control trials which investigated the efficacy of a conservative non-pharmacological treatment compared to the placebo, for the outcome of pain. Study selection, data collection and risk of bias assessment were conducted independently by two authors, and consensus was reached with a third author...
June 15, 2017: Foot
Ihsan Dursun, Selim Kul, Sinan Sahin, Ezgi Kalaycioglu, Ali Riza Akyuz, Levent Korkmaz
BACKGROUND: There are few reports demonstrating a relationship between presystolic wave (PSW) and left ventricular function. The aim of the present study was to investigate the associations between PSW and angiographic and echocardiographic characteristics of patients with acute myocardial infarction (AMI). METHODS: We studied 348 consecutive patients with AMI. Pulsed Doppler-echocardiography was used to assess the both diastolic functions and presence of PSW from left ventricular outflow tract...
November 9, 2017: International Journal of Cardiovascular Imaging
Shihui Fu, Chunling Liu, Leiming Luo, Ping Ye
BACKGROUND: Predictive abilities of cardiovascular biomarkers to renal function decline are more significant in Chinese community-dwelling population without glomerular filtration rate (GFR) below 60 ml/min/1.73m(2), and long-term prospective study is an optimal choice to explore this problem. Aim of this analysis was to observe this problem during the follow-up of 5 years. METHODS: In a large medical check-up program in Beijing, there were 948 participants with renal function evaluated at baseline and follow-up of 5 years...
November 9, 2017: BMC Nephrology
Anna Paini, Maria L Muiesan, Claudia Agabiti-Rosei, Carlo Aggiusti, Carolina De Ciuceis, Fabio Bertacchini, Sarah Duse, Francesco Semeraro, Damiano Rizzoni, Enrico Agabiti-Rosei, Massimo Salvetti
BACKGROUD AND PURPOSE: Wall-to-lumen ratio of retinal arterioles (W/L ratio) might serve as an in-vivo parameter of microvascular damage. No study has investigated the relationship between carotid stiffness and W/L ratio of retinal arteries. Therefore, the aim of the current study was to assess the correlation between local carotid stiffness, as assessed by echotracking technique, and W/L ratio of retinal arterioles, as assessed by noninvasive flowmetry in normotensive patients and in patients with primary hypertension...
November 7, 2017: Journal of Hypertension
Darae Kim, Chi Young Shim, Geu-Ru Hong, Sungha Park, InJeong Cho, Hyuk-Jae Chang, Jong-Won Ha, Namsik Chung
Background: Arterial stiffness increases pressure load to the left ventricle (LV), leading to LV hypertrophy and subendocardial ischemia. Neurohormones stimulate myocardial fibrosis and LV dysfunction. We aimed to explore the associations of arterial stiffness and plasma aldosterone with multi-directional, layer-specific LV, and left atrial (LA) mechanical function in hypertensive patients. Methods: Layer-specific LV global longitudinal strain (GLS-trans, GLS-endo, GLS-epi), global circumferential strain (GCS-trans, GCS-endo, GCS-epi), LV torsional parameters, and LA global longitudinal strain (LA GLS) were analyzed by two-dimensional speckle tracking echocardiography in 195 hypertensive patients (110 men, mean age 55 years)...
2017: Clinical Hypertension
Henrique C S Muela, Valeria A Costa-Hong, Mônica S Yassuda, Natália C Moraes, Claudia M Memória, Michel F Machado, Edson Bor-Seng-Shu, Ricardo C Nogueira, Alfredo J Mansur, Ayrton R Massaro, Ricardo Nitrini, Thiago A Macedo, Luiz A Bortolotto
Cognitive impairment and elevated arterial stiffness have been described in patients with arterial hypertension, but their association has not been well studied. We evaluated the correlation of arterial stiffness and different cognitive domains in patients with hypertension compared with those with normotension. We evaluated 211 patients (69 with normotension and 142 with hypertension). Patients were age matched and distributed according to their blood pressure: normotension, hypertension stage 1, and hypertension stage 2...
November 5, 2017: Journal of Clinical Hypertension
Haritz Iribas, Jon Mariñelarena, Cheng Feng, Javier Urricelqui, Thomas Schneider, Alayn Loayssa
We report on two previously unknown non-local effects that have been found to impair Brillouin optical time-domain analysis (BOTDA) sensors that deploy limited extinction ratio (ER) pump pulses. The first one originates in the increased depletion of the pedestal of the pump pulses by the amplified probe wave, which in turn entails a reduced amplification of the probe and a measurement distortion. The second effect is due to the interplay between the transient response of the erbium-doped fiber amplifiers (EDFA) that are normally deployed to amplify the pump and the pedestal of the pump pulses...
October 30, 2017: Optics Express
Roc Matheu, Jordi Benet-Buchholz, Xavier Sala, Antoni Llobet
In this work we have prepared and characterized two Ru complexes that contain the pentadenatate tda(2-) ligand (tda(2-) = [2,2':6',2″-terpyridine]-6,6″-dicarboxylate) that occupies the equatorial positions and two monodentate ligands aqua and/or dmso that occupy the axial positons: [trans-Ru(III)(tda-κ-N(3)O)(OH2(ax))2](+), 3(III)(OH2)2(+), and [Ru(II)(tda-κ-N(3)O)(dmso)(OH2(ax))], 4(II). The latter is a useful synthetic intermediate for the preparation of Ru-tda complexes with different axial ligands...
November 1, 2017: Inorganic Chemistry
Yu Kyung Chung, Young Ju Lee, Kye Whon Kim, Ryu Kyoung Cho, Seung Min Chung, Jun Sung Moon, Ji Sung Yoon, Kyu Chang Won, Hyoung Woo Lee
BACKGROUND: The aim of this study was to investigate the association between the serum cystatin C level and cardiovascular disease risk in patients with type 2 diabetes mellitus. METHODS: We studied 523 patients with type 2 diabetes mellitus and calculated estimated 10-year risk of atherosclerotic cardiovascular disease (%). Subclinical atherosclerosis was defined as brachial-ankle pulse wave velocity ⩾1700 ms, indicating the presence of arterial stiffness. RESULTS: Cystatin C level was significantly higher in the subclinical atherosclerosis group (brachial-ankle pulse wave velocity ⩾ 1700 ms) than in the non-subclinical atherosclerosis group (brachial-ankle pulse wave velocity < 1700 ms) (7...
October 1, 2017: Diabetes & Vascular Disease Research
Wanda R P Lopes-Vicente, Sara Rodrigues, Felipe X Cepeda, Camila Paixão Jordão, Valéria Costa-Hong, Akothirene C B Dutra-Marques, Jefferson C Carvalho, Maria Janieire N N Alves, Luiz A Bortolotto, Ivani C Trombetta
BACKGROUND: Metabolic syndrome (MetS) is associated with structural and functional vascular abnormalities, which may lead to increased arterial stiffness, more frequent cardiovascular events and higher mortality. However, the role played by clustering of risk factors and the combining pattern of MetS risk factors and their association with the arterial stiffness have yet to be fully understood. Age, hypertension and diabetes mellitus seem to be strongly associated with increased pulse wave velocity (PWV)...
2017: Diabetology & Metabolic Syndrome
Shihui Fu, Qixian Wu, Leiming Luo, Ping Ye
BACKGROUND: Peripheral arterial stiffness gives rise to the high prevalence of peripheral arterial disease (PAD). It is necessary to conduct a large-scale study in Chinese community-dwelling population to clarify the relationships of alcohol and tobacco consumption with peripheral arterial stiffness. Most studies had a small sample size, and were not performed in Chinese community-dwelling population without symptomatic PAD. This analysis was designed to examine the relationships of alcohol and tobacco consumption with peripheral arterial stiffness in Chinese community-dwelling population without symptomatic PAD...
2017: Tobacco Induced Diseases
Kyoko Kawashima-Kumagai, Yasuharu Tabara, Kenji Yamashiro, Kazuya Setoh, Munemitsu Yoshikawa, Takahisa Kawaguchi, Masahiro Miyake, Hideo Nakanishi, Yuki Muraoka, Yoshimitsu Takahashi, Shinji Kosugi, Takeo Nakayama, Nagahisa Yoshimura, Fumihiko Matsuda, Akitaka Tsujikawa
OBJECTIVE: Morphological change in retinal vessel calibers has been reported as a marker of cardiovascular risk, but its association with arterial stiffening, a possible factor relating retinal vessel sings and cardiovascular outcomes, is not clear. The study aim was to clarify the relationship between retinal small vessel calibers and longitudinal change in large arterial stiffness in a sample of the general population. METHODS: The study included 6720 Japanese participants (52...
October 27, 2017: Journal of Hypertension
Lanfranco D'Elia, Ferruccio Galletti, Ersilia La Fata, Paola Sabino, Pasquale Strazzullo
OBJECTIVE: Arterial stiffness is an independent cardiovascular risk factor and sodium intake could be a determinant of arterial stiffness. Nevertheless, the studies that investigated the effect of reducing dietary sodium intake on arterial stiffness in humans provided inconsistent results. Therefore, we performed a systematic review and a meta-analysis of the available randomized controlled trials of salt restriction and arterial stiffness to try and achieve more definitive conclusions...
October 27, 2017: Journal of Hypertension
Takanori Tokitsu, Eiichiro Yamamoto, Fumi Oike, Yoshihiro Hirata, Kenichi Tsujita, Megumi Yamamuro, Koichi Kaikita, Seiji Hokimoto
BACKGROUND: Although pulse-wave velocity (PWV) is a recognized risk predictor for cardiovascular diseases, its association with cardiovascular outcomes in heart failure with preserved left ventricular ejection fraction (HFpEF) is unclear. METHODS AND RESULTS: The 502 patients with HFpEF finally enrolled in this study (mean follow-up duration: 1017 days) were divided into those with or without peripheral artery disease (PAD). The latter were further grouped according to brachial-ankle PWV (baPWV) quintiles using an ankle-brachial pressure index device...
October 27, 2017: Journal of Hypertension
Atsushi Nakagomi, Yuko Sunami, Sho Okada, Yuji Ohno, Toshihiro Shoji, Takehiko Fujisawa, Yoshio Kobayashi
OBJECTIVE: To investigate the relationship between 1-h post-load plasma glucose, measured during an oral glucose tolerance test, and arterial stiffness, determined by brachial-ankle pulse-wave velocity, in normotensive subjects with normal glucose tolerance. METHODS: Study subjects were non-industrial workers aged 25-55 years ( n = 8381) who underwent a regular health check-up every 5 years. We included only normotensive subjects with normal glucose tolerance based on the American Diabetes Association criteria...
October 1, 2017: Diabetes & Vascular Disease Research
Damian G McGrogan, Stephanie Stringer, Paul Cockwell, Mark Jesky, Charlie Ferro, Alexander P Maxwell, Nicholas G Inston
INTRODUCTION: Marked arterial adaptation is critical in permitting and sustaining the increased blood flow within an arteriovenous fistula (AVF). The aim of this investigation was to evaluate markers of arterial disease and their association with the early post-operative AVF outcomes. METHODS: We included all patients in whom an AVF had been performed after enrolment to the Renal Impairment In Secondary Care (RIISC) study. Primary AVF failure (PFL) was defined as thrombosis at six-week review...
October 26, 2017: Journal of Vascular Access
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
Izabela Tuleta, Dirk Skowasch, Florian Aurich, Nicolas Eckstein, Robert Schueler, Carmen Pizarro, Nadjib Schahab, Georg Nickenig, Christian Schaefer, Simon Pingel
Asthma is a chronic airway inflammation with a potential systemic impact. Atherosclerosis is a chronic inflammatory artery disease. The aim of our study was to prove if there is a correlation between the occurrence of asthma and increased atherosclerotic vessel disorders. Vessel status was compared between mild-to-moderate, severe allergic asthma and matched controls. Measurements of artery stiffness were calculated by central pulse wave velocity, ultrasonographic strain imaging and ankle-brachial index. Atherosclerotic plaque burden was assessed by colour-coded duplex sonography...
2017: PloS One
Abbi D Lane-Cordova, Graziela Z Kalil, Christopher J Wagner, Amy L Sindler, Jess G Fiedorowicz, Tiwaloluwa Ajibewa, William G Haynes, Gary L Pierce
Blunted nocturnal dipping in blood pressure (BP) is associated with increased cardiovascular disease (CVD) risk in middle-aged/older adults. The prevalence of blunted nocturnal BP dipping is higher in persons with obesity and diabetes, conditions that are also associated with elevated aortic stiffness and inflammation. Therefore, we hypothesized that elevated glycemia, inflammation and aortic stiffness would be inversely associated with the magnitude of nocturnal systolic BP dipping among middle-aged/older adults with obesity at high CVD risk...
October 26, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
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