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Results 201 - 250 of 1706
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Keller-Ross Manda L ML Internal Medicine, Mayo Clinic College of Medicine, Rochester, MN. Electronic address: - - 2014
Feedback from active locomotor muscles contributes to the exercise pressor response in healthy humans, and is thought to be more prominent in heart failure (HF). The purpose of this study was to examine the influence of metaboreflex stimulation on arterial pressure in HF. Eleven HF patients (51 ± 5 years, ...
Liu Chengyu - - 2014
It has been reported that Gaussian functions could accurately and reliably model both carotid and radial artery pressure waveforms (CAPW and RAPW). However, the physiological relevance of the characteristic features from the modeled Gaussian functions has been little investigated. This study thus aimed to determine characteristic features from the Gaussian ...
Gewillig Marc - - 2014
The essence of a Fontan circuit is the creation of the Fontan "neoportal system," which allows for oxygenation at near normal levels, but at the cost of a chronic state of systemic venous congestion and decreased cardiac output. The heart, while still the engine of the circuit, cannot compensate for ...
Kondo Hideaki H Center for Sleep Medicine, Saiseikai Nagasaki Hospital, Nagasaki, - - 2014
Cyclic alternating pattern (CAP) is frequently followed by changes in heart rate (HR) and blood pressure (BP), but the sequential associations between CAP and autonomic nerve activity have not been studied. The study aimed to reveal the precise changes in heart rate variability (HRV) during phase A of the CAP ...
Chávez Elibet E Ernesto Che Guevara Heart Center, Santa Clara, Cuba. - - 2014
INTRODUCTION Hypertension and obesity in adults have been linked to increased EKG P-wave dispersion; the association has been shown in relation to hypertension, left ventricular hypertrophy and atrial enlargement. Though studies in children have linked P-wave dispersion to left ventricular hypertrophy, scant pediatric literature relates P-wave dispersion to hypertension and ...
Topouchian Jirar J Centre de Diagnostic, Hôpital Hôtel-Dieu, Paris, - - 2014
Four oscillometric devices, including the Omron M6 Comfort, Omron HEM-7420, Withings BP-800, and Polygreen KP-7670, designed for self-blood pressure measurement (SBPM) were evaluated according to the European Society of Hypertension (ESH) International Protocol Revision 2010 in four separate studies. The four devices measure brachial blood pressure (BP) using the oscillometric ...
Aggarwal Saurabh - - 2014
In patients with sleep-disordered breathing and heart failure, continuous positive airway pressure has been found to be associated with an improvement in cardiovascular end points. We conducted a systematic review of the current literature and a meta-analysis to pool data from 15 published randomized controlled trials. End points analyzed were ...
McKie Paul M PM Cardiorenal Research Laboratory, Mayo Clinic, Rochester, - - 2014
Systemic hypertension is a common characteristic in acute heart failure (HF). This increasingly recognized phenotype is commonly associated with renal dysfunction and there is an unmet need for renal enhancing therapies. In a canine model of HF and acute vasoconstrictive hypertension we characterized and compared the cardiorenal actions of M-atrial ...
Kalogeropoulos Andreas P AP Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Emory University, Atlanta, - - 2014
Pulmonary hypertension (PH) in patients with heart failure (HF) is associated with worse outcomes and is rapidly being recognized as a therapeutic target. To facilitate pragmatic research efforts, data regarding the prognostic importance of noninvasively assessed pulmonary artery systolic pressure (PASP) in stable ambulatory patients with HF are needed. We ...
Lee Juyoung J 0000-0002-9966-3618 Korea Forest Service, Government Complex 1, 189 Cheongsa-ro, Daejeon 302-701, Republic of - - 2014
Background. Despite increasing attention toward forest therapy as an alternative medicine, very little evidence continues to be available on its therapeutic effects. Therefore, this study was focused on elucidating the health benefits of forest walking on cardiovascular reactivity. Methods. Within-group comparisons were used to examine the cardiovascular responses to walking ...
Berthe-Aucejo Aurore A 0000-0002-9457-6996 Service de Pharmacie, Hôpital Robert Debré, 48 boulevard Sérurier, 75019 Paris, - - 2014
A patient aged 17 with dense deposit disease associated with complement activation, circulating C3 Nef, and Factor H mutation presented with nephrotic syndrome and hypertension. Steroid therapy, plasma exchange, and rituximab failed to improve proteinuria and hypertension despite a normalization of the circulating sC5b9 complex. Eculizumab, a monoclonal antibody directed ...
Posokhov Igor N IN Hemodynamic Laboratory Ltd, Nizhny Novgorod, - - 2014
Arterial stiffness, as measured by the pulse wave velocity (PWV), is recommended for routine use in clinical practice as an important parameter for the evaluation of cardiovascular risk.1 New 24-hour monitors (eg, with Vasotens® technology; Petr Telegin Company, Nizhny Novgorod, Russian Federation) provide single PWV measurements as well as several ...
Skrzypczak P - - 2014
Ventricular tachycardia may lead to haemodynamic deterioration and, in the case of long term persistence, is associated with the development of tachycardiomyopathy. The effect of ventricular tachycardia on haemodynamics in individuals with tachycardiomyopathy, but being in sinus rhythm has not been studied. Rapid ventricular pacing is a model of ventricular ...
Hashimoto Junichiro J Department of Blood Pressure Research, Tohoku University Graduate School of - - 2014
Recent advances in technology have enabled the noninvasive evaluation of pulsatile hemodynamics in the central aorta; namely, central pressure and flow measurements. The central blood pressure represents the true load imposed on the heart, kidney and brain, and the central blood flow influences the local flow into these vital organs. ...
Shin Il-Woo IW 1. Department of Anesthesiology and Pain Medicine, Gyeongsang National University Hospital, Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, - - 2014
Intravenous lipid emulsions (LEs) are effective in the treatment of toxicity associated with various drugs such as local anesthetics and other lipid soluble agents. The goals of this study were to examine the effect of LE on left ventricular hemodynamic variables and systemic blood pressure in an in vivo rat ...
Meyer Markus M Department of Medicine, Division of Cardiology and Gastroenterology, University of Vermont College of Medicine, Burlington, Vermont, - - 2014
We sought to evaluate if left ventricular filling pressures can be assessed from the esophagus. The invasive assessment of left ventricular filling pressures is of importance in the evaluation and monitoring of critically ill patients. The left atrium is in very close proximity to the esophagus. We hypothesized that the ...
Dutra Rosane Menezes Faria RM Heart Institute (InCor), Pulmonary Division, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, - - 2014
In this observational study, we evaluated the peripheral oxygen saturation (SpO2), heart rate, and blood pressure of children with cyanotic congenital heart disease who were undergoing dental extraction. Forty-four patients between the ages of 6 and 12 years who underwent upper primary tooth extraction were included in the study. Of ...
Fioresi Mirian M Department of Physiological Sciences, Federal University of Espírito Santo, Vitoria, Espírito Santo, Brazil; Department of Nursing, Federal University of Espírito Santo, Vitoria, Espírito Santo, - - 2014
We investigated the cardiovascular effects of lead exposure, emphasising its direct action on myocardial contractility. Male Wistar rats were sorted randomly into two groups: control (Ct) and treatment with 100 ppm of lead (Pb) in the drinking water. Blood pressure (BP) was measured weekly. At the end of the treatment ...
Tongyoo Surat - - 2014
Acute right ventricular dysfunction (RVD) is one of the hemodynamic alterations in patients with septic shock, pulmonary embolism and ARDS. This condition had previously been diagnosed by pulmonary artery catheters (PAC). This report is on the use of transthoracic echocardiography (TTE) to diagnose RVD in critically ill patients. To evaluate ...
Pezeshki Zahra Z Water & Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan 81745, - - 2014
Introduction. Rennin-angiotensin system and salt diet play important roles in blood pressure control. We hypothesized that the high-salt intake during pregnancy influences the degree of angiotensin-dependent control of the blood pressure in adult offspring. Methods. Female Wistar rats in two groups (A and B) were subjected to drink tap and ...
Rudiger Alain A 0000-0001-7943-7624 Cardiosurgical Intensive Care Unit, Institute of Anesthesiology, University Hospital Zurich, Raemistrasse 100, 8091 Zurich, - - 2014
Objectives. This study investigates the suitability, safety, and efficacy of vernakalant in critically ill patients with new onset atrial fibrillation (AF) after cardiac surgery. Methods. Patients were screened for inclusion and exclusion criteria according to the manufacturers' recommendations. Included patients were treated with 3 mg/kg of vernakalant over 10 min and, if ...
Vinn Olev O Department of Geology, University of Tartu, Tartu, - - 2014
The earliest Osprioneides kampto borings were found in bryozoan colonies of Sandbian age from northern Estonia (Baltica). The Ordovician was a time of great increase in the quantities of hard substrate removed by single trace makers. Increased predation pressure was most likely the driving force behind the infaunalization of larger ...
Badawi M A MA Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, - - 2014
Concerns have been raised regarding the postmarketing quality of generic drugs. This study assessed the pharmacokinetic and pharmacodynamic equivalence of generic and brand atenolol tablets in 24 healthy male volunteers in a single-dose, open, randomized, two-period crossover study under fasting conditions. Blood samples were collected for 24 h post dosing ...
Lauro Figueroa-Valverde FV Laboratory of Pharmaco-Chemistry, Faculty of Chemical Biological Sciences, University Autonomous of Campeche Av. Agustín Melgar s/n, Col Buenavista C.P.24039 Campeche Cam., - - 2014
There are studies which indicate that some steroid derivatives have inotropic activity; nevertheless, the cellular site and mechanism of action at cardiovascular level is very confusing. In order, to clarify these phenomena in this study, a new estradiol derivative was synthesized with the objective of to evaluate its biological activity ...
Nde Francis F Centre de Recherche Santé environnementale & Santé au travail, École de Santé Publique, Université libre de Bruxelles, Bruxelles, - - 2014
Physiological cardiac hypertrophy and dilation are common findings in heavy physical load activity. We carried out this study to investigate the relationship between construction work and cardiac parameters adaptations, by comparing healthy masons to office workers on heart ultrasound. The study was carried out on, 50 construction workers and 50 ...
Patel Sheila K SK Department of Medicine, Austin Health, University of Melbourne Heidelberg, VIC, - - 2014
Hypertension is a major risk factor for stroke, coronary events, heart and renal failure, and the renin-angiotensin system (RAS) plays a major role in its pathogenesis. Within the RAS, angiotensin converting enzyme (ACE) converts angiotensin (Ang) I into the vasoconstrictor Ang II. An "alternate" arm of the RAS now exists ...
Cha Jung-Joon - - 2014
Dynamic left ventricular (LV) outflow tract (LVOT) obstruction (DLVOTO) is not infrequently observed in older individuals without overt hypertrophic cardiomyopathy (HCM). We sought to investigate associated geometric changes and then evaluate their clinical characteristics. A total of 168 patients with DLVOTO, which was defined as a trans-LVOT peak pressure gradient ...
Laver Russell D RD Intensive and Critical Care Unit, Flinders Medical Centre, Flinders Drive, Bedford Park, SA 5042, - - 2014
Indirect assessment of mean pulmonary arterial pressure (MPAP) may assist management of critically ill patients with pulmonary hypertension and right heart dysfunction. MPAP can be estimated as the sum of echocardiographically derived mean right ventricular to right atrial systolic pressure gradient and right atrial pressure; however, this has not been ...
Nunes Allancer Dc AD Department of Physiological Sciences, Federal University of Goiás, Goiânia, - - 2014
Magnetic nanoparticles (MNPs) have been used for various biomedical applications. Importantly, manganese ferrite-based nanoparticles have useful magnetic resonance imaging characteristics and potential for hyperthermia treatment, but their effects in the cardiovascular system are poorly reported. Thus, the objectives of this study were to determine the cardiovascular effects of three different ...
Bhavanani Ananda Bhavanani AB Deputy Director, Centre for Yoga Therapy, Education, and Research, Mahatma Gandhi Medical College and Research Institute, Puducherry, - - 2014
Recent studies have reported the differential physiological and psychological effects of yogic uninostril breathing (UNB) and alternate nostril breathing (ANB) techniques. This study aims to determine differential effects of these techniques on reaction time (RT), heart rate (HR), and blood pressure (BP). Twenty yoga-trained subjects came to the lab on ...
Krishna Bandi Hari BH PhD scholar, Department of Physiology, JIPMER , Puducherry- 605006, India - - 2014
It is well known that a hall mark of heart failure is adverse changes in autonomic function. Elevated blood pressure is a powerful predictor of congestive heart failure and other Cardiovascular Disease (CVD) outcomes. In this study, we planned to examine the effects of a 12 week yoga therapy on ...
Calık Ali Nazmi AN Department of Cardiology, Yozgat State Hospital, Yozgat, - - 2014
Alzheimer's disease (AD) is closely linked to cardiovascular risk factors. Echocardiographic studies were performed, including left ventricular diastolic functions, left and right atrial conduction times, and arterial stiffness parameters, namely stiffness index, pressure-strain elastic modulus, and distensibility, on 29 patients with AD and 24 age-matched individuals with normal cognitive function. ...
Litscher Gerhard G 0000-0001-6287-0130 Research Unit for Complementary and Integrative Laser Medicine, Research Unit of Biomedical Engineering in Anesthesia and Intensive Care Medicine, and TCM Research Center Graz, Medical University of Graz, 8036 Graz, Austria ; Heilongjiang University of Chinese Medicine, Harbin 150040, - - 2014
Hypertension is one of the major risk factors for cardiovascular disease worldwide. Over 70% of the patients use antihypertensive drugs, so nonpharmacological treatments in addition to the medication are important. Our goal was to investigate acupuncture treatment on the Quchi acupoint using heart rate (HR) and heart rate variability (HRV) ...
Choy Jenny S JS Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, Indiana, United States of - - 2014
Chronic monitoring of heart rate, blood pressure, and flow in conscious free-roaming large animals can offer considerable opportunity to understand the progression of cardiovascular diseases and can test new diagnostics and therapeutics. The objective of this study was to demonstrate the feasibility of chronic, simultaneous measurement of several hemodynamic parameters ...
Li Jianhua J Department of Science Research and Development, Chinese People's Armed Police Force Academy, Langfang, - - 2014
For portable oxygen concentrator by pressure swing adsorption (PSA) method, its volume, mass, power, oxygen flux and oxygen saving efficiency are the most important parameters which are affected strongly by the PSA cycle. In this paper, we propose a new pressure equalization step to optimize the PSA cycle. According to ...
Schechter Matthew A MA Department of Surgery, Duke University Medical - - 2014
Since its introduction in the late 19(th) century, the Langendorff isolated heart perfusion apparatus, and the subsequent development of the working heart model, have been invaluable tools for studying cardiovascular function and disease(1-15). Although the Langendorff heart preparation can be used for any mammalian heart, most studies involving this apparatus ...
Wu Xiaojing X Cardiovascular Department of Xinqiao Hospital, Third Military Medical University, No.183 Xinqiao Street, Chongqing, - - 2013
Increased indiscriminate use of pulmonary artery hypertension-targeted drugs has been observed in patients with pulmonary hypertension (PH) secondary to heart failure. We performed a meta-analysis to evaluate the chronic effects of using phosphodiesterase 5 (PDE5) inhibitors to treat patients with PH secondary to chronic systolic heart failure. PubMed, EMBASE, and ...
Akintunde Adeseye A AA Akintunde A.A., P.O. Box 3238, Osogbo, Nigeria, - - 2013
Aim. To determine the association of carotid atherosclerosis and right ventricular diastolic dysfunction (DD) among treated hypertensive Nigerian patients. Methods. This was a single center cross-sectional study performed at the Cardiology Clinic of LAUTECH Teaching Hospital, Ogbomoso, Nigeria between January and December 2012. The study included 122 hypertensive Nigerians (mean ...
Shiran Avinoam A Department of Cardiovascular Medicine Lady Davis Carmel Medical Center, Technion - Israel Institute of Technology, Haifa, Israel; The Ruth and Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel. Electronic address: - - 2013
The aim of this study was to determine the risk factors for tricuspid regurgitation (TR) progression in a contemporary population of patients referred for echocardiography. In a case-control study, we compared 100 consecutive patients with TR progression on serial echocardiograms (trivial or mild TR on the first echocardiogram and moderate ...
Prinz Christian C Department of Cardiology, Heart and Diabetes Center NRW, Ruhr-University, Bochum, Bad Oeynhausen, - - 2013
To use particle image velocimetry (PIV) echocardiography for the evaluation of diastolic dysfunction (DD) in patients with hypertrophic nonobstructive cardiomyopathy (HNCM). This study included 50 individuals, thereof 30 patients with DD due to HNCM and 20 healthy individuals who served as controls. HNCM patients were divided into 3 groups according ...
Seiler Jens J Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, - - 2013
Open-irrigated radiofrequency catheter ablation (oiRFA) of atrial fibrillation (AF) imposes a volume load and risk of pulmonary edema. We sought to assess the effect of volume administration during ablation on left atrial (LA) pressure and B-type natriuretic peptide (BNP). LA pressure was measured via transseptal sheath at the beginning and ...
Zhang Xiao-Yong - - 2013
Abstract Objective. We investigated the effects of quiet respiration on the peak velocity of tricuspid regurgitation (TR) and estimation of systolic pulmonary artery pressure (SPAP) in patients with right ventricle (RV) systolic dysfunction using Doppler echocardiography. Methods. Continuous-wave Doppler spectra of TR were recorded in 32 patients with and 28 ...
Kubitz J J Department of Anaesthesiology, Center of Anaesthesiology and Intensive Care Medicine, Hamburg-Eppendorf University Hospital, University of Hamburg, Germany - - - 2013
Objective: So far, only left ventricular functional preload indices are used as a routine to assess volume responsiveness. Right ventricular (RV) functional preload indices have been described, but offer no continuous monitoring. Design and Measurements: Following ethical approval, a pressure-induced right ventricular failure (RVF) was induced with continuous infusion of ...
Ballo Piercarlo P Cardiology Unit, S. Maria Annunziata Hospital, Florence, Italy. Electronic address: - - 2013
The relationships of left ventricular (LV) longitudinal and circumferential systolic dysfunction with diastolic performance in hypertensive patients have never been compared. In 532 asymptomatic hypertensive patients, circumferential function was assessed using midwall fractional shortening (mFS) and stress-corrected mFS (ScmFS), whereas longitudinal function was assessed using left atrioventricular plane displacement (AVPD) ...
Tadic Marijana M University Clinical Hospital Center "Dr Dragisa Misovic," Belgrade, Serbia. Electronic address: - - 2013
We sought to investigate right ventricular (RV) and right atrial (RA) deformation obtained using 3-dimensional echocardiography (3DE) and 2-dimensional (2DE) strain in subjects with the metabolic syndrome (MS). This cross-sectional study included 108 untreated subjects with the MS and 75 control subjects similar according to sex and age. The MS ...
Marott Sarah C W SC Department of Clinical Biochemistry, Herlev Hospital, Copenhagen University Hospital, Herlev Ringvej 75, DK-2730 Herlev, - - 2013
To examine the associations between antihypertensive treatment with angiotensin-converting enzyme inhibitors (ACEis) or angiotensin receptor blockers (ARBs), β-blockers, diuretics, or calcium-antagonists, and risk of atrial fibrillation. We examined these associations using the entire Danish population from 1995 through 2010. Excluding medication used in atrial fibrillation, we matched individuals on ACEi ...
van Vonderen Jeroen J JJ Division of Neonatology, Department of Pediatrics, Leiden University Medical Center, Leiden, the - - 2013
Background: Cardiac output depends on stroke volume and heart rate (HR). Only HR is used to monitor hemodynamic transition. Methods: In 24 term newborns born via cesarean section, HR and preductal blood pressure (BP) were measured. Also, using echocardiography, left ventricular dimensions (LVD) and (Doppler derived) output (LVO) were examined ...
Di Molfetta Arianna A 1 Institute of Clinical Physiology-CNR, Rome - - - 2014
Purpose: VADs could be used for transportation of the great arteries (TGA) and for congenitally corrected transposition (ccTGA) treatment. A cardiovascular numerical model (NM) may offer a useful clinical support in these complex physiopathologies. This work aims at developing and preliminarily verifying a NM of ccTGA and TGA interacting with ...
Benetti Elisabetta E Department of Medicine, University of Padova, Padua, - - 2013
The objective of this study was to determine the accuracy of the A&D BP UA-651 device for home blood pressure (BP) measurement according to the International Protocol of the European Society of Hypertension. Device evaluation was carried out in 33 patients. The mean age of the patients was 48.3±15.5 years, ...
Yang Guo-Hong - - 2013
Recent studies have shown that the tonicity-responsive enhancer binding protein (TonEBP)/vascular endothelial growth factor-C (VEGF-C) signaling pathway-induced lymphangiogenesis provides a buffering mechanism for high salt (HS) intake-induced elevation of blood pressure (BP). Moreover, blocking of TonEBP/VEGF-C signaling by mononuclear phagocyte depletion can induce salt-sensitive hypertension in rats. We hypothesized that ...
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