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https://www.readbyqxmd.com/read/28724946/diastolic-augmentation-index-improves-radial-augmentation-index-in-assessing-arterial-stiffness
#1
Yang Yao, Liling Hao, Lisheng Xu, Yahui Zhang, Lin Qi, Yingxian Sun, Benqiang Yang, Frans N van de Vosse, Yudong Yao
Arterial stiffness is an important risk factor for cardiovascular events. Radial augmentation index (AI r ) can be more conveniently measured compared with carotid-femoral pulse wave velocity (cfPWV). However, the performance of AI r in assessing arterial stiffness is limited. This study proposes a novel index AI rd , a combination of AI r and diastolic augmentation index (AI d ) with a weight α, to achieve better performance over AI r in assessing arterial stiffness. 120 subjects (43 ± 21 years old) were enrolled...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28695310/central-aortic-pulse-pressure-thrombogenicity-and-cardiovascular-risk
#2
Gailing Chen, Kevin P Bliden, Rahul Chaudhary, Fang Liu, Himabindu Kaza, Eliano P Navarese, Udaya S Tantry, Paul A Gurbel
High central aortic pulse pressure (CPP) and thrombin-induced platelet-fibrin clot strength (TIP-FCS) have been associated with ischemic outcomes in patients with coronary artery disease in separate studies. But, the ischemic risk associated with these factors has never been analyzed in a single study and their interrelation is unknown. The primary aim of the study was to establish cut points for CPP and TIP-FCS measured at the time of catheterization associated with long term major adverse cardiovascular events...
July 10, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28690287/stroke-volume-variation-svv-and-pulse-pressure-variation-ppv-as-indicators-of-fluid-responsiveness-in-sevoflurane-anesthetized-mechanically-ventilated-euvolemic-dogs
#3
Yusuke Endo, Jun Tamura, Tomohito Ishizuka, Takaharu Itami, Kiwamu Hanazono, Kenjiro Miyoshi, Tadashi Sano, Kazuto Yamashita, William W Muir
Changes in stroke volume variation (SVV) and pulse pressure variation (PPV) in response to fluid infusion were experimentally evaluated during vecuronium infusion and sevoflurane anesthesia in 5 adult, mechanically ventilated, euvolemic, beagle dogs. Sequential increases in central venous pressure (CVP; 3-7[baseline], 8-12, 13-17, 18-22 and 23-27 mmHg) were produced by infusing lactated Ringer's solution and 6% hydroxyethyl starch solution. Heart rate (beats/min), right atrial pressure (RAP, mmHg), pulmonary arterial pressure (PAP, mmHg), pulmonary capillary wedge pressure (PCWP, mmHg), transpulmonary thermodilution cardiac output (TPTDCO, L/min), stroke volume (SV, ml/beat), arterial blood pressure (ABP, mmHg), extravascular lung water (EVLW, ml), pulmonary vascular permeability index (PVPI, calculated), SVV (%), PPV (%) and systemic vascular resistance (SVR, dynes/sec/cm(5)) were determined at each predetermined CVP range...
July 10, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28689748/in-vivo-corneal-pulsation-in-relation-to-in-vivo-intraocular-pressure-and-corneal-biomechanics-assessed-in-vitro-an-animal-pilot-study
#4
Maja M Rogala, Monika E Danielewska, Agnieszka Antończyk, Zdzisław Kiełbowicz, Marta E Rogowska, Marta Kozuń, Jerzy Detyna, D Robert Iskander
The aim was to ascertain whether the characteristics of the corneal pulse (CP) measured in-vivo in a rabbit eye change after short-term artificial increase of intraocular pressure (IOP) and whether they correlate with corneal biomechanics assessed in-vitro. Eight New Zealand white rabbits were included in this study and were anesthetized. In-vivo experiments included simultaneous measurements of the CP signal, registered with a non-contact method, IOP, intra-arterial blood pressure, and blood pulse (BPL), at the baseline and short-term elevated IOP...
July 6, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28686199/postprandial-effects-of-breakfast-glycemic-index-on-vascular-function-among-young-healthy-adults-a-crossover-clinical-trial
#5
Natalia Sanchez-Aguadero, Maria C Patino-Alonso, Sara Mora-Simon, Manuel A Gomez-Marcos, Rosario Alonso-Dominguez, Benigna Sanchez-Salgado, Jose I Recio-Rodriguez, Luis Garcia-Ortiz
This study aimed to evaluate the postprandial effects of high and low glycemic index (GI) breakfasts on vascular function. It was a crossover trial that included 40 young healthy adults (50% women), aged 20-40 years, who were recruited at primary care settings. They consumed three experimental breakfasts in randomized order, each one separated by a 1-week washout period: (1) control conditions (only water); (2) low GI (LGI) breakfast (29.4 GI and 1489 KJ energy); and (3) high GI (HGI) breakfast (64.0 GI and 1318 KJ energy)...
July 7, 2017: Nutrients
https://www.readbyqxmd.com/read/28684239/association-of-vascular-function-and-estimated-cardiovascular-risk-in-patients-with-rheumatoid-arthritis
#6
Herwig Pieringer, Erich Pohanka, Rudolf Puchner, Tobias Brummaier
OBJECTIVES: Rheumatoid arthritis (RA) patients should receive cardiovascular (CV) risk assessment. For this purpose CV risk calculators are available. In addition, parameters of vascular function can be measured and used for risk prediction. Aim of the present study was to assess the association of these two concepts. METHODS: 287 RA patients (58.4±12.6 years) and 232 controls (49.9±13.4 years) were included in this cross-sectional study. We calculated 10 year CV risk with SCORE and QRISK2...
July 3, 2017: Revista Brasileira de Reumatologia
https://www.readbyqxmd.com/read/28683363/association-between-markers-of-arterial-stiffness-and-atrial-fibrillation-in-the-circulatory-risk-in-communities-study-circs
#7
Renzhe Cui, Kazumasa Yamagishi, Isao Muraki, Mina Hayama-Terada, Mitsumasa Umesawa, Hironori Imano, Yuanying Li, Ehab S Eshak, Tetsuya Ohira, Masahiko Kiyama, Takeo Okada, Akihiko Kitamura, Takeshi Tanigawa, Hiroyasu Iso
BACKGROUND AND AIMS: Limited evidence is available on the association between markers of arterial stiffness and the prevalence of atrial fibrillation among Asian populations. Therefore, we examined those associations in the Japanese population. METHODS: We conducted a cross-sectional population-based study of 4264 men and women aged 40-79 years. The augmentation index (AI), a marker of arterial stiffness, was calculated as the ratio of central pulse pressure/brachial pulse pressure, where the AI and central aortic pressure were measured by an automated tonometer: the HEM-9000AI device (Omron Healthcare co...
June 22, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28682245/a-fiber-bragg-grating-sensor-for-radial-artery-pulse-waveform-measurement
#8
Dagong Jia, Jing Chao, Shuai Li, Hongxia Zhang, Yingzhan Yan, Tiegen Liu, Ye Sun
In this paper, we report the design and experimental validation of a novel optical sensor for radial artery pulse measurement based on fiber Bragg grating (FBG) and lever amplification mechanism. Pulse waveform analysis (PWA) is a diagnostic tool for clinical examination and disease diagnosis. High fidelity radial artery pulse waveform has been investigated in clinical studies for estimating central aortic pressure which is proved to be predictors of cardiovascular diseases. As a three-dimensional cylinder, the radial artery needs to be examined from different locations to achieve optimal pulse waveform for estimation and diagnosis...
June 30, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28675704/the-metabolic-syndrome-is-associated-with-carotid-atherosclerosis-and-arterial-stiffness-in-asymptomatic-nondiabetic-postmenopausal-women
#9
Irene Lambrinoudaki, Aikaterini Kazani, Eleni Armeni, Demetrios Rizos, Areti Augoulea, Georgios Kaparos, Andreas Alexandrou, Georgios Georgiopoulos, Ioannis Kanakakis, Kimon Stamatelopoulos
The menopause transition is associated with adverse changes in cardiometabolic risk factors. We aimed to examine the association of the metabolic syndrome (MS) and its features with indices of vascular structure and function in a population of asymptomatic postmenopausal women. A total of 473 informed-consenting, nondiabetic postmenopausal women were included in the study. The MS was defined according to the Joint Definition. We evaluated the association between the presence of MS and indices of vascular structure (carotid artery intima-media thickness (IMT); atherosclerotic plaques) and function (flow-mediated dilatation (FMD); pulse wave velocity (PWV))...
July 4, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28671872/camera-based-assessment-of-arterial-stiffness-and-wave-reflection-parameters-from-neck-micro-motion
#10
Andreia Vieira Moço, Luis Albert Zavala Mondragon, Wenjin Wang, Sander Stuijk, Gerard de Haan
The feasibility of camera-based extraction of the carotid distension waveforms offers the prospect of a user-friendly alternative to Laser Doppler Velocimetry (LDV) or accelerometry-based systems. Upon supplementary calibration of vessel wall displacement to arterial pressure, our system may also be an appealing alternative to applanation tonometry for extracting cardiac-related features from the central pulse pressure waveform. This paper describes the application of camera-based micro-motion imaging to extract health-related features from the contour of the carotid displacement waveform...
July 3, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28669329/effect-of-low-5-mg-vs-high-20-40-mg-rosuvastatin-dose-on-24h-arterial-stiffness-central-haemodynamics-and-non-alcoholic-fatty-liver-disease-in-patients-with-optimally-controlled-arterial-hypertension
#11
Eudoxia Mitsiou, Chrysoula Boutari, Vasilios Kotsis, Eleni Georgianou, Michael Doumas, Asterios Karagiannis, Vasilios G Athyros
OBJECTIVE: Arterial stiffness (AS) and non-alcoholic fatty liver diseases (NAFLD) are 2 related, prevalent, risk predictors of cardiovascular disease (CVD). We assessed the effect of low dose (5 mg/day) vs high dose (20-40 mg/day) rosuvastatin on aortic elasticity and central haemodynamics as well as on NAFLD in patients with arterial hypertension (AH). PATIENTS-METHODS: Forty patients with optimally controlled AH were randomised to 2 rosuvastatin doses and followed for 6 months...
June 30, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/28661960/longitudinal-study-of-the-influence-of-lung-function-on-vascular-health-from-adolescence-to-early-adulthood-in-a-british-multiethnic-cohort
#12
Yao Lu, Lum Sooky, Maria João Silva, Oarabile R Molaodi, Alexis Karamanos, J Kennedy Cruickshank, Seeromanie Harding
BACKGROUND: Vascular and lung function develop and decline over the life course; both predict cardiovascular events and mortality but little is known of how they develop over time. We analysed their relationship in a multiethnic cohort study to test whether lung function from early adolescence to young adulthood affected vascular indices. METHODS: 'DASH' (http://dash.sphsu.mrc.ac.uk) included 6643 children aged 11-13 years in 2003; a representative 10% sample (n = 665) participated in a pilot follow-up in 2013...
July 18, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28655182/longitudinal-changes-in-mean-and-pulse-pressure-and-all-cause-mortality-data-from-71-629-untreated-normotensive-individuals
#13
Athanase D Protogerou, Charalambos Vlachopoulos, Frederique Thomas, Yi Zhang, Bruno Pannier, Jacques Blacher, Michel E Safar
BACKGROUND: Blood pressure (BP) includes a steady (mean arterial pressure, MAP) and a pulsatile component that independently predict mortality. The association between longitudinal changes in central (c) pulse pressure (PP), brachial (b) PP, MAP, and incident mortality has never been investigated in this context. METHODS: Brachial MAP and PP were measured at 2 routine checkups (1st visit 1992; mean interval, 5.8 ± 2.4 years) in 71,629 individuals, age 16-95 years, none on antihypertensive drugs...
June 26, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28647890/comparison-of-lercanidipine-plus-hydrochlorothiazide-vs-lercanidipine-plus-enalapril-on-micro-and-macrocirculation-in-patients-with-mild-essential-hypertension
#14
Carolina De Ciuceis, Massimo Salvetti, Anna Paini, Claudia Rossini, Maria Lorenza Muiesan, Sarah Duse, Stefano Caletti, Maria Antonietta Coschignano, Francesco Semeraro, Valentina Trapletti, Fabio Bertacchini, Valeria Brami, Alina Petelca, Enrico Agabiti Rosei, Damiano Rizzoni, Claudia Agabiti Rosei
Dihydropyridine calcium channel blockers may possess antioxidant properties, and might improve micro and macrovascular structure and function. Combination treatment with an ACE inhibitor may have additional advantages, compared with a thiazide diuretic. The aim of the present study is to investigate the effects of a short-term treatment with lercanidipine, and to compare two combination treatments: lercanidipine + enalapril vs. lercanidipine + hydrochlorothiazide on structural alterations in retinal arterioles, on skin capillary density and on large artery distensibility...
June 24, 2017: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/28642732/autonomic-function-impairment-and-brain-perfusion-deficit-in-parkinson-s-disease
#15
Wei-Che Lin, Pei-Chin Chen, Chih-Cheng Huang, Nai-Wen Tsai, Hsiu-Ling Chen, Hung-Chen Wang, Kun-Hsien Chou, Meng-Hsiang Chen, Yi-Wen Chen, Cheng-Hsien Lu
INTRODUCTION: Autonomic disorders have been recognized as important Parkinson's disease (PD) components. Some vulnerable structures are related to the central autonomic network and have also been linked to autonomic function alterations. The aims of the study are to evaluate the severity of the autonomic dysfunction and the cortical hypoperfusion using arterial spin labeling (ASL) MRI. And then, possible relationships of significant between-group differences in perfusion pattern to clinical variables and autonomic functions were examined to determine the pharmaceutical effects of dopaminergic treatment on cerebral blood flow (CBF) in patients with PD...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28639151/central-arterial-function-measured-by-non-invasive-pulse-wave-analysis-is-abnormal-in-patients-with-duchenne-muscular-dystrophy
#16
Thomas D Ryan, John J Parent, Zhiqian Gao, Philip R Khoury, Elizabeth Dupont, Jennifer N Smith, Brenda Wong, Elaine M Urbina, John L Jefferies
Duchenne muscular dystrophy (DMD) is an X-linked recessive disorder caused by mutation of dystrophin. Cardiovascular involvement includes dilated cardiomyopathy. Non-invasive assessment of vascular function has not been evaluated in DMD. We hypothesize arterial wave reflection is abnormal in patients with DMD. Pulse wave analysis was performed on DMD patients with a SphygmoCor SCOR-PVx System to determine central blood pressure and augmentation index (AIx) as an assessment of arterial wave reflection. Results were compared to a control group...
June 21, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28634578/neonatal-venous-thromboembolism
#17
REVIEW
Kristina M Haley
Neonates are the pediatric population at highest risk for development of venous thromboembolism (VTE), and the incidence of VTE in the neonatal population is increasing. This is especially true in the critically ill population. Several large studies indicate that the incidence of neonatal VTE is up almost threefold in the last two decades. Central lines, fluid fluctuations, sepsis, liver dysfunction, and inflammation contribute to the risk profile for VTE development in ill neonates. In addition, the neonatal hemostatic system is different from that of older children and adults...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28629292/increased-blood-pressures-in-veterans-with-post-traumatic-stress-disorder
#18
Ehsan Moazen-Zadeh, Alireza Khoshdel, Farhad Avakh, Arash Rahmani
Objective Veterans of war affected by posttraumatic stress disorder (PTSD) are at increased risk for cardiovascular diseases. We aimed to compare brachial and central blood pressures between veterans with PTSD and controls. Method In this case-control study on veterans of Iran-Iraq war, 50 veterans with PTSD and 50 veterans as controls were selected from an outpatient clinic and matched for age ±3 years. Exclusion criteria were malignancies, severe anatomical defects such as amputated extremities, history of PTSD before serving in war, comorbid psychiatric disorders other than anxiety or depressive disorders...
August 2016: International Journal of Psychiatry in Medicine
https://www.readbyqxmd.com/read/28628659/wave-intensity-of-aortic-root-pressure-as-diagnostic-marker-of-left-ventricular-systolic-dysfunction
#19
Bernhard Hametner, Stephanie Parragh, Thomas Weber, Siegfried Wassertheurer
BACKGROUND: Systolic left ventricular function strongly influences the blood pressure waveform. Therefore, pressure-derived parameters might potentially be used as non-invasive, diagnostic markers of left ventricular impairment. The aim of this study was to investigate the performance of pressure-based parameters in combination with electrocardiography (ECG) for the detection of left ventricular systolic dysfunction defined as severely reduced ejection fraction (EF). METHODS AND RESULTS: Two populations, each comprising patients with reduced EF and pressure-matched controls, were included for the main analysis (51/102 patients) and model testing (44/88 patients)...
2017: PloS One
https://www.readbyqxmd.com/read/28625256/-comparison-of-effect-of-norepinephrine-and-terlipressin-on-patients-with-ards-combined-with-septic-shock-a-prospective-single-blind-randomized-controlled-trial
#20
Zhi Chen, Ping Zhou, Yuanhua Lu, Chunli Yang
OBJECTIVE: To approach the effect of different vasopressor on hemodynamics, volume responsiveness, fluid volume balance, renal function and prognosis in patients with acute respiratory distress syndrome (ARDS) complicated with septic shock. METHODS: A prospective single-blind randomized controlled trial was conducted. ARDS patients with septic shock admitted to the Department of Critical Care Medicine of Jiangxi Provincial People's Hospital from January 1st, 2015 to May 1st, 2016 were enrolled...
February 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
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