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Results 201 - 250 of 1014
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De Vecchis R R Cardiology Unit Presidio Sanitario Intermedio "Elena d'Aosta" Naples, Italy - - - 2014
The use of haematochemical markers of intra-ventricular myocardial strain, known as B-type natriuretic peptides, has been proposed as an initial diagnostic step for early screening programs targeting asymptomatic left ventricular dysfunction (ALVD) in populations of subjects at risk. The diagnostic accuracy of BNP for the identification of ALVD was assessed ...
Lewis Eldrin F EF Cardiovascular Division, Brigham and Women's Hospital, Boston, Massachusetts. Electronic address: - - 2014
The objective of this study was to determine the impact of nonfatal cardiovascular (CV) events on changes in health-related quality of life (HRQL). There is limited understanding of the impact of nonfatal CV events on long-term changes in HRQL in survivors of myocardial infarction (MI). The VALIANT (Valsartan In Acute Myocardial ...
Wongsirimetheekul Theeranan - - 2014
Recently, non-invasive methods for cardiac output (CO) assessment have been developed including the ultrasonic cardiac output monitor (USCOM). This technique uses the same concept as Doppler echocardiography but differs in two aspects including continuous wave (CW) Doppler and estimated outflow tract diameter (OTD) used in USCOM compared to pulsed wave ...
Murai Tadashi T Cardiology, Tsuchiura Kyodo General Hospital, Tsuchiura, - - 2014
Objectives and Background: Increased microvascular resistance may impair hyperemic coronary flow by limiting the maximal and constant vasodilation, resulting in increased fractional flow reserve (FFR) due to the underestimation of the translesional pressure gradient. We examined whether microvascular resistance affects FFR after successful percutaneous coronary intervention (PCI). Methods and Results: ...
Limantoro Ione I Department of Cardiology, Maastricht University Medical Centre, PO Box 5800, Maastricht 6202 AZ, The - - 2014
In patients with atrial fibrillation (AF), echocardiographic tissue velocity imaging (TVI) enables assessment of electrical and structural remodelling by measuring, respectively, the AF cycle length (AFCL-TVI) and the atrial fibrillatory wall motion velocity (AFV-TVI). We investigated the clinical and echocardiographic correlates of atrial remodelling assessed by TVI.METHODS AND RESULTS: We ...
Jastrzebski Marek M First Department of Cardiology, Interventional Electrocardiology and Hypertension, University Hospital, Cracow, - - 2014
An accurate and universal method for diagnosis of biventricular (BiV) capture using a standard 12-lead electrocardiogram (ECG) would be useful for assessment of cardiac resynchronization therapy (CRT) patients. Our objective was to develop and validate such an ECG method for BiV capture diagnosis that would be independent of pacing lead ...
Bussadori Claudio C Pediatric Cardiology and Adult with Congenital Heart Disease Department, IRCCS San Donato Hospital, Milan, - - 2014
The right ventricle (RV) is of lesser importance in acquired heart disease, but its role is of increasing importance in congenital heart disease (CHD). Despite major progress being made, precise measurements of the RV are challenging because of its peculiar anatomical structure that is not adaptable to any planar geometrical ...
Hutchinson Mathew D MD From the Division of Cardiology, Department of Medicine, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, - - 2014
The readership of this journal is well familiar with the unique challenges associated with mapping and ablation of ventricular arrhythmias (VAs) originating from the outflow tract (OT) region. In light of the broad and spatially complex topography of these structures, an organized approach to evaluating them is of paramount importance.(1) ...
van Duijnhoven Sander Martinus Johannes - - 2014
The non-invasive imaging of matrix metalloproteinases (MMPs) activity in post-ischemic myocardial tissue holds great promise to predict cardiac function post myocardial infarction. Consequently, development of MMP specific molecular imaging probes for non-invasive visualization and quantification of MMP activity is of great interest. A novel and elegant MMP imaging strategy is ...
Wackel Philip P Department of Cardiology at Children's Hospital of Pittsburgh at The University of Pittsburgh Medical Center, Pittsburgh, - - 2014
To use smartphone applications (apps) to measure heart rates during supraventricular tachycardia (SVT) in pediatric patients and compare them with heart rates measured by standard electrocardiogram (ECG). Patients <18 years of age (n = 26) undergoing an electrophysiology study were enrolled. During the study, heart rates were measured at baseline ...
Cobey Frederick C FC Division of Cardiothoracic Anesthesiology and Critical Care Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, North Carolina; Department of Anesthesiology, Tufts Medical Center, Boston, - - 2014
Functional mitral regurgitation (FMR) occurs as a consequence of left ventricular remodeling and is an independent predictor of adverse outcome. FMR is assessed qualitatively with two-dimensional echocardiography, but accurate quantitation of the actual degree of mitral valve (MV) coaptation is not possible with this method. We evaluated a novel three-dimensional ...
Abe Naoyuki N 1Department of Cardiovascular Medicine, Shinshu University School of Medicine, Nagano, - - 2014
We sought to determine whether serial measurements of oxidative stress levels could serve as a predictive marker for cardiovascular (CV) events in patients with ST-segment elevation myocardial infarction (STEMI). Biological antioxidant potential (BAP) levels were measured at admission and at 6, 12, and 24 months in 69 patients with STEMI. ...
Rost Christian C Medical Park, Bad Wiessee, - - 2014
Identification of viable but dysfunctional myocardium after myocardial infarction is important for management, including the decision for revascularization. Assessment of infarct transmurality (TRM) by late contrast enhancement on magnetic resonance imaging (MRI) is frequently used for this task but has several limitations, particularly its availability. The goal of this study ...
Wever-Pinzon Omar O U.T.A.H. Cardiac Transplant Program, University of Utah Health Sciences Center, Veterans Affairs Medical Center & Intermountain Medical Center, Salt Lake City, - - 2014
We aimed to evaluate the diagnostic accuracy of CCTA for detecting cardiac allograft vasculopathy (CAV) in comparison with conventional coronary angiography (CCAG) alone or with intravascular ultrasound (IVUS). CAV limits long-term survival after heart transplantation, and screening for CAV is performed on annual basis. Coronary Computed Tomography Angiography (CCTA) is ...
Depta Jeremiah P JP Division of Cardiology, Department of Medicine, Washington University School of Medicine, St. Louis, - - 2014
Current evidence supports deferral of revascularization for lesions with fractional flow reserve (FFR) values >0.80. The natural history after deferral of revascularization of lesions with borderline FFR values is unknown. This study evaluated the outcomes of patients after deferred revascularization of coronary stenoses based on a borderline FFR value. We ...
Reef V B VB Department of Clinical Studies-New Bolton Center, University of Pennsylvania School of Veterinary Medicine, Kennett Square, - - 2014
Murmurs and arrhythmias are commonly detected in equine athletes. Assessing the relevance of these cardiovascular abnormalities in the performance horse can be challenging. Determining the impact of a cardiovascular disorder on performance, life expectancy, horse and rider or driver safety relative to the owner's future expectations is paramount. A comprehensive ...
Sheikh Nabeel N St. George's University of London, London; University Hospital Lewisham, London, United - - 2014
Recent efforts have focused on improving specificity of the European Society of Cardiology (ESC) criteria for ECG interpretation in athletes. These criteria are derived predominantly from white athletes (WAs) and do not account for the effect of Afro-Caribbean ethnicity or novel research questioning the relevance of several isolated ECG patterns. ...
Wang Wenru W Alice Lee Centre for Nursing Studies, Yong Loo Lin School of Medicine, National University of Singapore, - - 2014
Tools to measure the quality of life of Chinese myocardial infarction (MI) patients in mainland China are small in numbers. For this study, 210 Chinese patients with MI were recruited to examine the psychometric properties of the Chinese Mandarin version of the MacNew Heart Disease questionnaire. Thirty-five participants managed to ...
Galderisi Maurizio M Department of Translational Medical Sciences, Federico II University Hospital, Naples, - - 2014
The non-invasive estimation of left ventricular filling pressures (LVFPs) represents a main goal in the clinical setting. Current recommendations encourage the use of pulsed-wave Tissue Doppler for calculating the ratio between the preload-dependent transmitral E velocity and the average of septal and lateral early diastolic velocities (e') of the mitral ...
de Champlain François - - 2014
ABSTRACTIntroduction:Computerized interpretation of the prehospital electrocardiogram (ECG) is increasingly being used in the basic life support (BLS) ambulance setting to reduce delays to treatment for patients suspected of ST segment elevation myocardial infarction (STEMI).Objectives:To estimate 1) predictive values of computerized prehospital 12-lead ECG interpretation for STEMI and 2) additional on-scene ...
Brunetti Natale Daniele ND Cardiology Department, University of Foggia Foggia - - 2014
Exact quantification of plaque extension during coronary angioplasty (PCI) usually falls on interventional cardiologist (IC). Quantitative coronary stenosis assessment (QCA) may be possibly committed to the radiology technician (RT), who usually supports cath-lab nurse and IC during PCI. We therefore sought to investigate the reliability of QCA performed by RT ...
Osmancik Pavel P Cardiocenter, Department of Cardiology, 3rd Medical School, Charles University and University Hospital Kralovske Vinohrady Prague, Czech - - 2014
Right ventricular (RV) mid-septal pacing should have fewer negative effects on left ventricular function compared to apical pacing. However, targeting the mid-septum may be technically challenging since it is usually done with two-dimensional fluoroscopy. The rotation of the heart and various shapes of the RV make it difficult to assess, ...
Ionescu Costin N - - 2014
We evaluated the clinical value of a single measurement of high-sensitivity C-reactive protein (hs- CRP) in patients presenting to the emergency department with chest pain. We screened 408 consecutive patients of whom 292 comprised the final cohort for this study. Hs-CRP measured in the emergency department (ED) in patients presenting ...
Duncan Andra E AE From the Departments of Cardiothoracic Anesthesia, Outcomes Research, and Cardiovascular Medicine, Cleveland Clinic, Cleveland, - - 2014
Evaluation of left ventricular performance improves risk assessment and guides anesthetic decisions. However, the most common echocardiographic measure of myocardial function, the left ventricular ejection fraction (LVEF), has important limitations. LVEF is limited by subjective interpretation that reduces accuracy and reproducibility, and LVEF assesses global function without characterizing regional myocardial ...
Pinto Jostol J Resident, Department of Medicine, Father Muller Medical College , Mangalore, India - - 2014
Electrocardiogram (ECG) is a cost effective tool to evaluate left ventricular hypertrophy (LVH). However, its reliability is often questionable when compared to the gold standard - echocardiography.The validation of ECG as a tool to diagnose LVH would benefit centres that lack access to echocardiography. (1) To assess the efficacy of ...
Orlic Dejan D Clinical Center of Serbia, School of Medicine, Belgrade, - - 2014
Routine thrombus aspiration is proposed to be superior to conventional primary percutaneous coronary intervention (PCI) in terms of improved myocardial perfusion, in patients with ST-segment elevation acute myocardial infarction (STEMI). However, myocardial perfusion after thrombus aspiration has not been evaluated by a quantitative, invasive method. We intend to determine whether ...
Motwani Manish - - 2014
Two-dimensional (2D) perfusion cardiovascular magnetic resonance (CMR) remains limited by a lack of complete myocardial coverage. Three-dimensional (3D) perfusion CMR addresses this limitation and has recently been shown to be clinically feasible. However, the feasibility and potential clinical utility of quantitative 3D perfusion measurements, as already shown with 2D-perfusion CMR ...
Leung Melissa M Department of Cardiology, University of New South Wales, Liverpool Hospital, Liverpool, NSW, - - 2014
Aims: Coronary microvascular function has important diagnostic and prognostic implications but routine assessment is difficult. The index of microcirculatory resistance (IMR) is a reliable but invasive measure. We evaluated whether left ventricular contractile reserve (CR), measured with strain imaging on dobutamine echocardiography (DSE), is a reliable non-invasive measure of coronary ...
Karacavus Seyhan S Department of Nuclear Medicine, Faculty of Medicine, Bozok University, Yozgat, Turkey. - - 2014
Assessment of left ventricular (LV) function in patients with myocardial infarction (MI) provide useful diagnostic and prognostic information. Up to date, single photon emission tomography (SPET), positron emission tomography (PET), multidetector computed tomographic angiography, echocardiography (EC) and magnetic resonance imaging (MRI), have been used to examine LV parameters. However, due ...
Arrebola-Moreno A L AL Cardiology Department, Hospital Universitario Virgen de las Nieves, Granada, Spain; Cardiovascular Sciences Research Centre, St George's University of London, London, United Kingdom. Electronic address: - - 2014
Whilst traditional studies have shown that obese individuals are at a higher risk of cardiovascular events compared to lean subjects, recent studies in patients with acute myocardial infarction (AMI) have suggested that obesity may exert protective effects (the "obesity paradox"). We sought to assess the relationship between body mass index ...
Sugamata Wataru W University of Yamanashi, Department of Internal Medicine II, Yamanashi, - - 2014
Measurement of either flow-mediated endothelium-dependent dilatation (FMD) of the brachial artery, brachial-ankle pulse wave velocity (baPWV), or intima-media thickness (IMT) of the carotid artery is useful for risk assessment of future cardiovascular events. This study examined whether combination of these vascular parameters may have an additive effect on the ability ...
Sakurai Daisuke D Division of Functional Diagnostics, Department of Health Sciences, Osaka University Graduate School of Medicine, 1-7 Yamadaoka, Suita, Osaka, 565-0871, - - 2014
The assessment of post-systolic shortening (PSS) by speckle tracking echocardiography allows myocardial ischemic memory imaging. Because the endocardial layer is more vulnerable to ischemia, the assessment of this layer might be useful for detecting ischemic memory. Serial echocardiographic data were acquired from nine dogs with 2 min of coronary occlusion followed ...
Bhan Amit - - 2014
Objectives: To assess the feasibility and accuracy of high frequency speckle tracking echocardiography (STE) in a murine model of myocardial infarction (MI). Background: STE is used clinically to quantify global and regional cardiac function but its application in mice is challenging because of the small cardiac size and rapid heart ...
Wierzbowska-Drabik Karina K Chair and Department of Cardiology, Medical University of Lodz, Kniaziewicza 1/5, 91-347, Lodz, Poland, - - 2014
Speckle tracking echocardiography (STE) is a method of quantitative assessment of myocardial function complementary to ejection fraction and visual evaluation. Standard STE analysis, demands manual tracing of the myocardium whereas automated function imaging (AFI) offers more convenient (based on selection of three points) assessment of longitudinal strain. Nevertheless, feasibility and ...
Henninger Nils N From the Departments of Neurology (N.H., M.A.K., J.Z., M.M., R.P.G.) and Psychiatry (N.H.), University of Massachusetts Medical School, - - 2014
Leukoaraiosis (LA) predominantly affects the subcortical white matter, but mounting evidence suggests an association with cortical microvascular dysfunction and potentially decreased cortical ischemic tolerance. Thus, we sought to assess whether preexisting LA is predictive of the cortical infarct volume after middle cerebral artery branch occlusion and whether it relates to ...
Ladeiras-Lopes Ricardo R Department of Physiology and Cardiothoracic Surgery, Faculty of Medicine of the University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319, Porto, Portugal, - - 2014
Insulin resistance plays a central role in the pathophysiology of metabolic syndrome (MS). Its cardiac deleterious effects are characterized by an increase in fibrous tissue that increases myocardial stiffness and contributes to subclinical left ventricular diastolic dysfunction (LVDD) and heart failure with preserved ejection fraction in patients with MS. In ...
Menafoglio Andrea A Division of Cardiology, Ospedale San Giovanni Bellinzona, Bellinzona, - - 2014
The usefulness and modalities of cardiovascular screening in young athletes remain controversial, particularly concerning the role of 12-lead ECG. One of the reasons refers to the presumed false-positive ECGs requiring additional examinations and higher costs. Our study aimed to assess the total costs and yield of a preparticipation cardiovascular examination ...
Liu Chang C Departments of Cardiovascular Surgery (CL, LN, ZL, BW, GZ, LX, HL), Cardiology (CX, JS), and Computer Tomography (XX, KZ), The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, - - 2014
Although dobutamine stress myocardial contrast echocardiography (DSMCE) has been widely used for the prediction of myocardial functional recovery, dynamic changes that occur at the microcirculatory level during stress have been studied limitedly. The objective of the present study was to use low-dose DSMCE to assess microvascular damage and predict myocardial ...
Bamberg Fabian F Department of Clinical Radiology, Ludwig-Maximilians-University, Klinikum Grosshadern, Munich, Germany; Munich Heart Alliance, Munich, Germany. Electronic address: - - 2014
The aim of this study was to determine the feasibility of computed tomography (CT)-based dynamic myocardial perfusion imaging for the assessment of myocardial ischemia and infarction compared with cardiac magnetic resonance (CMR). Sequential myocardial CT perfusion imaging has emerged as a novel imaging technique for the assessment of myocardial hypoperfusion. ...
McKaigney Conor J CJ Department of Emergency Medicine, Queen's University, Ontario, Canada; Department of Emergency Medicine, Denver Health Medical Center, Denver, CO. Electronic address: - - 2014
Rapid assessment of left ventricular ejection fraction (LVEF) may be critical among emergency department (ED) patients. This study examined the predictive relationship between ED physician performed bedside mitral-valve E-point septal separation (EPSS) measurements to the quantitative, calculated LVEF. We further evaluated the relationship between ED physician visual estimates of global ...
Tilz Roland Richard RR Department of Cardiology, Asklepios Klinik St Georg, Lohmuehlenstr 5, 20099 Hamburg, - - 2014
Clinical outcomes following radiofrequency ablation of ventricular tachycardias (VTs) depend on catheter tip-to-tissue contact force (CF). Left-ventricular (LV) mapping is performed via antegrade-transseptal or retrograde-transaortic approaches, and the applied CF may depend on the approach used. This study evaluated (i) the impact of antegrade-transseptal vs. retrograde-transaortic LV-mapping approaches on CF ...
Esposito Michele M Molecular Cardiology Research Institute, Division of Cardiology, Tufts Medical Center, 800 Washington Street, Box #80, Boston, MA 02111 USA. - - 2014
The aim of this study was to assess myocardial blush (MB) using a novel software algorithm that quantifies time-density curves (TDC) after percutaneous coronary intervention (PCI). Thirty-two patients referred for elective PCI were enrolled. TDC curves were generated and mean maximal myocardial contrast density (Dmax) was calculated from 5 regions ...
Jellis Christine L CL School of Medicine, The University of Queensland, Brisbane, - - 2014
Subclinical diabetic cardiomyopathy (DCM) is frequent in asymptomatic subjects with type 2 diabetes (T2DM). We sought the response of functional and fibrosis markers to therapy in a trial of aldosterone antagonism for treatment of DCM. Biochemical, anthropometric, and echocardiographic data were measured in 225 subjects with T2DM. Myocardial function was ...
Parker Katherine M KM Department of Biomedical Engineering, University of Virginia, Charlottesville, - - 2014
The relationship between cardiac resynchronization therapy (CRT), left ventricular (LV) lead position, scar, and regional mechanical function influences CRT response. To determine LV lead position relative to LV structural characteristics in standard clinical practice, we developed and validated a practical yet mathematically rigorous method to register procedural fluoroscopic LV lead ...
Estep Jerry D JD Houston Methodist DeBakey Heart & Vascular Center, Houston, Texas. Electronic address: - - 2014
Malfunction of a continuous-flow left ventricular assist device (CF-LVAD) due to device thrombosis is a potentially life-threatening event that currently presents a diagnostic challenge. We aimed to propose a practical echocardiographic assessment to diagnose LVAD malfunction secondary to pump thrombosis. Among 52 patients implanted with a CF-LVAD from a single ...
Gaggin Hanna K HK Division of Cardiology, Massachusetts General Hospital, Boston, - - 2014
This analysis aimed to perform a head-to-head comparison of 3 of the promising biomarkers of cardiovascular (CV) outcomes in heart failure (HF)-soluble ST2 (sST2), growth differentiation factor (GDF)-15, and highly-sensitive troponin T (hsTnT)-and to evaluate the role of serial measurement of these biomarkers in patients with chronic HF. sST2, GDF-15, ...
Perfetti Matteo M Institute of Cardiology, "G. d'Annunzio" University, Chieti, Pescara, - - 2014
Current cardiac magnetic resonance (CMR) quantitative signs for the diagnosis of myocarditis include myocardial edema, fibrosis and myocardial hyperemia (Hyp). Methods for the assessment of Hyp are actually complex and time-consuming. To test a simple and fast method to assess Hyp, using contrast enhancement steady state free precession (ceSSFP) technique. ...
Nørgaard Bjarne L BL Department of Cardiology, Aarhus University Hospital Skejby, Aarhus, Denmark. Electronic address: - - 2014
To determine the diagnostic performance of non-invasive FFR derived from standard acquired coronary computed tomography angiography (CTA) datasets (FFRCT) for the diagnosis of myocardial ischemia in patients with suspected stable coronary artery disease (CAD). Fractional flow reserve (FFR) measured during invasive coronary angiography (ICA) is the gold standard for lesion-specific ...
Lux Robert L RL Nora Eccles Harrison Cardiovascular Research and Training Institute, University of Utah, Salt Lake City, Utah, United States of - - 2014
Precise measurement of the QT interval is often hampered by difficulty determining the end of the low amplitude T wave. Root mean square electrocardiography (RMS ECG) provides a novel alternative measure of ventricular repolarization. Experimental data have shown that the interval between the RMS ECG QRS and T wave peaks ...
Yildiz Abdulkadir - - 2014
The aim of the study was to evaluate the utility of the preprocedural platelet-lymphocyte ratio (PLR) for predicting no reflow in patients undergoing primary percutaneous intervention (PCI) for the treatment of ST-segment elevation myocardial infarction. The thrombolysis in myocardial infarction (TIMI) flow grades of 287 patients treated with primary PCI ...
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