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Results 201 - 250 of 1666
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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 ...
Brady Tammy M - - 2013
Blood Pressure screening in children and adolescents is currently recommended by several prominent medical organizations, including the American Heart Association, the National High Blood Pressure Education Program, the National Heart, Lung, and Blood Institute, the European Society of Hypertension, and the American Academy of Pediatrics. This practice was recently subject ...
Chiang Shuo-Ju SJ Division of Cardiology, Department of Internal Medicine, Taipei Medical University - - 2013
Background: The aim of this study was to determine whether global strain imaging diastolic index (SIDI) obtained using 2-D speckle tracking imaging (2DSI) could predict elevation in and rapid change of LV filling pressure. Methods and Results: Patients (n=126) underwent echocardiography and 2DSI during simultaneous cardiac catheterization. There were 60 patients in ...
Na Sungwon - - 2013
It has been recognized that the sympathetic nervous system is activated in pulmonary arterial hypertension (PAH), and abnormal sympathetic hyperactivity leads to worsening of PAH via endothelial dysfunction. The purpose of this study was to examine whether sympathetic ganglion block (SGB) can treat PAH by increasing the availability of nitric ...
Moreno María U - - 2013
Left ventricular hypertrophy (LVH) is an independent marker of mortality in hypertension. Although the mechanisms contributing to LVH are complex, inflammation and oxidative stress may favor its development. We analyzed the association of the phagocytic NADPH oxidase-mediated superoxide anion release and LVH in patients with essential hypertension and the role ...
Ahn J - - 2013
Echocardiographic assessments including E/e' are a good predictor of elevated left ventricular (LV) filling pressure during sinus rhythm. However, the evaluation of LV filling pressure using classic echocardiographic assessment has been challenging in the setting of atrial fibrillation (AF). The aim of this study was to investigate the methods for ...
Jone Pei-Ni - - 2013
Pulmonary hypertension (PH) increases right ventricular (RV) pressure, resulting in septal shift and RV dilation. Few echocardiographic measures have been used to evaluate severity and outcomes in children with PH. The aims of this study were to compare the RV to left ventricular (LV) diameter ratio at end-systole (RV/LV ratio) ...
Kang Yuan-Yuan - - 2013
The present study aimed to evaluate the accuracy of the AVITA BPM63S upper arm blood pressure monitor for home blood pressure monitoring according to the International Protocol of the European Society of Hypertension revision 2010. Systolic and diastolic blood pressures were sequentially measured in 33 adult Chinese (14 women, mean ...
Arita Shinji - - 2013
The purpose of this study was to determine the effect of pravastatin (PS) on hemodynamic parameters in healthy dogs. Five beagle dogs were repeatedly used in each of the 4 groups. One group was not medicated (control). Dogs in other groups received 0.5, 1.0 or 2.0 mg/kg PS orally q24hr, ...
Seo Eriko - - 2013
The constant-volume (CV) hypothesis was tested using the Mytilus galloprovincialis heart under two conditions. The volume of the ventricle, auricles and pericardium, and the flow in the heart and adjacent vessels were measured by magnetic resonance imaging. In synthetic sea water at 23°C (immersed condition), the end-diastolic (EDV), end-systolic (ESV) ...
Hiemstra Jessica A JA Department of Biomedical Science, University of Missouri- Columbia, Columbia, - - 2013
We recently reported that mitochondrial dysfunction, characterized by increased mitochondrial permeability transition (MPT), was present in a translational swine model of heart failure with preserved ejection fraction (HFpEF). Cyclophilin D is a key component of the MPT pore, therefore, the purpose of this study was to test the efficacy of ...
van de Veerdonk Mariëlle C - - 2013
To assess the contribution of right ventricular (RV) trabeculae and papillary muscles (TPM) to RV mass and volumes in controls and patients with pulmonary arterial hypertension (PAH). Furthermore, to evaluate whether TPM shows a similar response as the RV free wall (RVFW) to changes in pulmonary artery pressure (PAP) during ...
Stiver Corey - - 2013
Diastolic dyssynchrony has correlated with pulmonary capillary wedge pressures in patients with normal cardiac anatomy. No data exist in single right ventricle (sRV) patients. Goal of this study was to determine if diastolic dyssynchrony in sRV patients correlates with ventricular end-diastolic pressures (VEDP). Tissue Doppler imaging (TDI) and strain rate ...
Deng Alan Y - - 2013
Heart failure explains a large portion of heart diseases. Molecular mechanisms determining cardiac function, by inference dysfunction in heart failure, are incompletely understood, especially in the common (or congestive) systolic (SHF) and diastolic heart failure (DHF). Limited genome-wide association studies (GWASs) in humans are reported on SHF and no GWAS ...
Johnson Christopher D - - 2013
Sympathetic and parasympathetic divisions of the autonomic nervous system constantly control the heart (sympathetic and parasympathetic divisions) and blood vessels (predominantly the sympathetic division) to maintain appropriate blood pressure and organ blood flow over sometimes widely varying conditions. This can be adversely affected by pathological conditions that can damage one ...
Vos Luke - - 2013
To determine whether people seen by the Far North Queensland Specialist Medical Outreach Service (SMOS) with chronic kidney disease (CKD) and proteinuria were treated according to established guidelines. Audit of SMOS clinical reports from 18th May to 27th July 2012. Clinical markers were compared with the Caring for Australians with ...
Bozbaş H - - 2013
Pulmonary hypertension (PHT) and right ventricular (RV) dysfunction are among the commonly observed and potentially serious complications following heart transplantation. RV dysfunction is reported to occur in as much as half of these patients. In this study, the authors sought to examine the prevalence and the course of these prognostically ...
Al-Shafei Ahmad I AI Department of Physiology, College of Medicine, Al-Imam Muhammad Ibn Saud Islamic University, Riyadh 13317-4233, Kingdom of Saudi Arabia. Tel. +966 550049027. Fax. 966 (11) 2037108. E-mail: - - 2013
To characterize the effects of regular Roselle ingestion on blood pressure and left ventricular hypertrophy (LVH) in patients with established moderate essential hypertension. This non-randomized quasi-experimental study was conducted in Kafr El-Shaikh, Egypt, for 8 weeks, from September 2012 to November 2012. The effects of a 4-week period of regular ...
Vitlyanova K - - 2013
The objective of this study was to evaluate the effects of Valsartan (Valsacor®) on arterial pressure (AP) and indices of myocardial diastolic and global function in patients with uncontrolled arterial hypertension (AH). 60 patients (39 men and 21 women, mean age 63.9 ± 10.8 years, P > 140/90 mmHg with ...
Radulescu Dan - - 2013
Background: High blood pressure causes left ventricular hypertrophy, which is a negative prognostic factor among hypertensive patients. Aim: To assess left ventricular geometric remodeling patterns in patients with essential hypertension or with hypertension secondary to parenchymal renal disease. Material and Methods: We analyzed data from echocardiograms performed in 250patients with ...
Wang Zhijie Z Department of Biomedical Engineering, University of Wisconsin - Madison, Madison, 53706, - - 2013
Right ventricle (RV) dysfunction occurs with progression of pulmonary arterial hypertension (PAH) due to persistently elevated ventricular afterload. A critical knowledge gap is the molecular mechanisms that govern the transition from RV adaptation to RV maladaptation, which leads to failure. Here, we hypothesize that the recently established mouse model of ...
Kojonazarov Baktybek B Universities of Giessen and Marburg Lung Center, Giessen, - - 2013
Pulmonary hypertension is a debilitating disease with no cure. We have previously shown that peroxisome proliferator-activated receptor (PPAR) β/δ agonists protect the right heart in hypoxia-driven pulmonary hypertension without affecting vascular remodeling. PPARβ/δ is an important receptor in lipid metabolism, athletic performance, and the sensing of prostacyclin. Treatment of right ...
Samillan Victor V Institute for Veterinary Physiology, Vetsuisse Faculty, Zurich, Switzerland ; Zurich Center for Integrative Human Physiology, Zurich, Switzerland ; Human Physiology Department, Medical School, Universidad Alas Peruanas, Lima, - - 2013
Pulmonary hypertension (PH) is an incurable disease that often leads to right ventricular hypertrophy and right heart failure. This study investigated single versus combined therapy with sildenafil and erythropoietin on hypoxia-induced pulmonary hypertension in mice. Mice were randomized into 5 groups and exposed to either hypoxia (10% oxygen) or normoxia ...
Holmboe Sarah S Department of Cardiology, Aarhus University Hospital, Aarhus, - - 2013
Right heart function is an important predictor of morbidity and mortality in patients suffering from pulmonary arterial hypertension and congenital heart diseases. We investigated whether the prostacyclin analog iloprost has a direct inotropic effect in the pressure-overloaded hypertrophic and dysfunctional right ventricle (RV). Rats were randomized to monocrotaline injection (60 ...
Padeletti Margherita - - 2013
Objectives: The dual endothelin receptor antagonist bosentan improves pulmonary vascular resistance (PVR) in patients with primary pulmonary hypertension (PH). The effects of bosentan on secondary PH due to systolic heart failure (HF) are not well defined. This study evaluates the effect and tolerability of bosentan in patients with PH secondary ...
Funakoshi Kouta - - 2013
Patients with heart failure and preserved ejection fraction (HFpEF) are supersensitive to volume overload, and a striking increase in left atrial pressure (LAP) often occurs transiently and rapidly resolved by intravascular volume reduction. The arterial baroreflex is a powerful regulator of intravascular stressed blood volume. We examined whether arterial baroreflex ...
Johansson Jouni K - - 2013
The objective of the study was to investigate interarm differences of blood pressure (BP) and its determinants, and to clarify whether both arms are equally good in assessing BP and target organ damage in the general population. We studied a representative sample of Finnish adult population with 484 study participants, ...
Cohn William E - - 2013
Over the last 8 years, we have developed and evaluated a continuous-flow total artificial heart (CFTAH) comprising two rotary blood pumps. To understand the physiologic effects of nonpulsatile circulation, we evaluated the CFTAH in 65 calves for 90 days or less. We describe our experience with 29 calves that survived ...
Bove Thierry - - 2013
The age for correction of tetralogy of Fallot has progressively declined to the postnatal period, often despite an increased rate of transannular patch repair. However, the long-term effect of premature exposure to chronic pulmonary insufficiency on the right ventricle remains unknown. On the basis of the relationship between the duration ...
Brugger Nicolas N Cardiology Department, Bern University Hospital, Bern, Switzerland. Electronic address: - - 2013
Left atrium (LA) dilation and P-wave duration are linked to the amount of endurance training and are risk factors for atrial fibrillation (AF). The aim of this study was to evaluate the impact of LA anatomical and electrical remodeling on its conduit and pump function measured by two-dimensional speckle tracking ...
Frazee Erin N EN Hospital Pharmacy Services, Mayo Clinic, Rochester, MN. Electronic address: - - 2013
Although benzodiazepines are first-line drugs for alcohol withdrawal syndrome (AWS), rapidly escalating doses may offer little additional benefit and increase complications. The purpose of this study was to evaluate dexmedetomidine's impact on benzodiazepine requirements and hemodynamics in AWS. This retrospective case series evaluated 33 critically ill adults with a primary ...
Throckmorton Amy L - - 2013
A magnetically levitated impeller within a pediatric ventricular assist device operates under highly transient flow conditions. In this study, computational analyses were performed to investigate the hydraulic performance and fluid forces on the impeller under the steady and dynamic flow conditions, including: 1) time-varying boundary conditions (TVBC) considering a pulsed ...
Wei Fang-Fei - - 2013
The association of target organ damage with 24-hour systolic and diastolic blood pressure levels and ambulatory hypertension subtypes has not yet been examined in untreated Chinese patients. We measured left ventricular mass index by echocardiography (n=619), the urinary albumin:creatinine ratio (n=1047), and aortic pulse wave velocity by tonometry (n=1013) in ...
Ponikowski Piotr - - 2013
The aim of this study was to evaluate the haemodynamic effects of serelaxin (30 µg/kg/day 20-h infusion and 4-h post-infusion period) in patients with acute heart failure (AHF). This double-blind, multicentre study randomized 71 AHF patients with pulmonary capillary wedge pressure (PCWP) ≥18 mmHg, systolic blood pressure (BP) ≥115 mmHg, ...
Danelich Ilya M - - 2013
Heart failure (HF) is an epidemic associated with significant morbidity and mortality, affecting over 5 million people in the United States and 1-2% of the population worldwide. Observational studies have suggested that a healthy lifestyle can reduce HF risk. Although no clinical trials have targeted the prevention of HF as ...
Gregori Mario M Division of Cardiology, Department of Clinical and Molecular Medicine, University of Rome "Sapienza", Rome, Italy. Electronic address: - - 2014
Right ventricular dysfunction (RVD) is a major predictor of cardiovascular mortality. Inadequate suppression of the renin-angiotensin-aldosterone system (RAAS) after postural manoeuvres favours alterations of left ventricular (LV) function. The effects of RAAS dysregulation on RV performance remain elusive. The present study investigated RV function in hypertensive patients with or without ...
Kao Yu-Cheng - - 2013
We tested the hypothesis that the apical myocardial mechanics differ from those of other ventricular segments in hypertensive patients with and without apical hypertrophic cardiomyopathy (ApHCM). We retrospectively studied hypertensive patients with and without ApHCM. Left ventricular longitudinal, circumferential, and radial strains were examined by two-dimensional speckle-tracking echocardiography at the ...
Mar Philip L - - 2013
Background:Selective serotonin reuptake inhibitors (SSRIs) are often prescribed in patients with postural tachycardia syndrome (POTS), and act at synaptic terminals to increase monoamine neurotransmitters. We hypothesized that they act to increase blood pressure and attenuate reflex tachycardia, thereby improving symptoms. Acute hemodynamic profiles after SSRI administration in POTS patients have ...
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