Search Results
Results 201 - 250 of 2317
< 1 2 3 4 5 6 7 8 9 10 >
Estornell-Erill Jordi - - 2012
To evaluate the capability of multidetector computed tomography to diagnose the coronary etiology of left ventricular dysfunction compared with using invasive coronary angiography and magnetic resonance. Forty consecutive patients with left ventricular dysfunction of uncertain etiology underwent invasive coronary angiography and contrast magnetic resonance. All patients were evaluated with multidetector ...
Capodanno Davide - - 2011
The Evaluation of Xience Prime or Xience V versus Coronary Artery Bypass Surgery for Effectiveness of Left Main Revascularization (EXCEL) trial is a multicenter, ongoing trial conducted in patients with left main disease and SYNTAX score≤32 to establish the presumptive advantage of percutaneous coronary intervention (PCI) versus bypass surgery in ...
Lown Mark T - - 2011
Risk assessment is central to the management of acute coronary syndromes. Often, however, assessment is not complete until the troponin concentration is available. Using 2 multicenter prospective observational studies (Evaluation of Methods and Management of Acute Coronary Events [EMMACE] 2, test cohort, 1,843 patients; and EMMACE-1, validation cohort, 550 patients) ...
Keller Pierre-Frederic - - 2011
Objectives:  To explore the diagnostic accuracies of anti-apolipoproteinA-1 (anti-ApoA-1) IgG and anti-phosphorylcholine (anti-PC) IgM alone, expressed as a ratio (anti-ApoA-1 IgG/anti-PC IgM), and combined with the TIMI score for non-ST-segment elevation myocardial infarction (NSTEMI) (NSTEMI-TIMI score) to create a new diagnostic algorithm - the Clinical Autoantibody Ratio (CABR) score - ...
Woods Kevin M - - 2011
Coronary computed tomography angiography (CTA) is an increasingly utilized, highly accurate noninvasive test for the diagnosis of coronary artery disease. Accumulating data have convincingly demonstrated that the presence, extent, and location of both obstructive and nonobstructive coronary atherosclerosis visualized on coronary CTA conveys powerful prognostic information, incremental to that provided ...
Hoke Robert S - - 2011
PURPOSE: To study the association between baseline heart rate and outcome in patients with multiple organ dysfunction (MODS) as well as the course of heart rate over the first 4 days during MODS. METHODS: Prospective observational study in 89 patients with MODS, defined as an APACHE-II score ≥20. Baseline heart rate ...
Villines Todd C - - 2011
OBJECTIVES: The purpose of this study was to describe the prevalence and severity of coronary artery disease (CAD) in relation to prognosis in symptomatic patients without coronary artery calcification (CAC) undergoing coronary computed tomography angiography (CCTA). BACKGROUND: The frequency and clinical relevance of CAD in patients without CAC are unclear. ...
Su Jianling - - 2011
OBJECTIVE: The aim of this study was to evaluate the additional predictive value of serum potassium (SK) to Thrombolysis In Myocardial Infarction (TIMI) risk score for malignant ventricular arrhythmias (MVA) in patients within 24 hours of acute myocardial infarction (AMI). METHODS: This was a 6-year retrospective study. The receiver operating ...
Stolen Craig M - - 2011
Biventricular pacing (BiV) has been shown to reduce wall stress and workload in regions near the pacing sites. This trial investigated if BiV near the ischemic region would reduce chest pain in patients with refractory angina due to severe coronary artery disease (CAD). Eleven patients were implanted with BiV devices ...
Hamrefors Viktor - - 2011
Objective:  To assess whether a genetic risk score that was previously shown to be associated with myocardial infarction and coronary artery disease is also associated with markers of carotid atherosclerosis. Design:  A total of 4022 middle-aged subjects from the general Swedish population were genotyped and individually assigned a genetic risk ...
Naya Masanao M Noninvasive Cardiovascular Imaging Program, Department of Medicine (Cardiology), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, - - 2011
The purpose of this study was to quantify the effects of coronary atherosclerosis morphology and extent on myocardial flow reserve (MFR). Although the relationship between coronary stenosis and myocardial perfusion is well established, little is known about the contribution of other anatomic descriptors of atherosclerosis burden to this relationship. We ...
Kim Song Soo - - 2011
To identify factors that can affect systolic compression of myocardial bridging (MB) of the mid-left anterior descending (LAD) coronary artery with dual-source computed tomography (DSCT). Patients with mid-LAD MB (n = 198) detected by DSCT were studied. MB was classified as incomplete superficial (IS), complete superficial (CS), and deep (D) type. The ...
Raman Vivek - - 2012
To conduct an economic analysis (EA) of coronary calcium scoring (CCS) using a 0 score, as alternative to stress electrocardiography (sECG) in diagnosing coronary artery disease (CAD). A decision tree was constructed to compare four strategies for investigation of suspected CAD previously assessed in the formulation of clinical guidelines for ...
Bailey Elizabeth A - - 2011
AIM: A voluntary audit was undertaken to compare left ventricular ejection fraction (LVEF) calculations from gated heart pool studies using software packages currently available throughout Australia and New Zealand (ANZ). METHODS: A data set previously developed by a task group of the Institute of Physics and Engineering in Medicine (IPEM) ...
Marcus Karen A - - 2012
Two-dimensional speckle tracking echocardiography (2DSTE) offers valuable information in the echocardiographic assessment of ventricular myocardial function. It enables the quantification and timing of systolic ventricular myocardial deformation. In addition, 2DSTE can be used to identify mechanical dyssynchrony, which is an important parameter in predicting the response to cardiac resynchronization therapy ...
Kimura Koichi - - 2011
Background: The subendocardial myocardium normally has higher systolic strain than the subepicardial myocardium and can be damaged first in face of ischemia. We investigated the reproducibility and feasibility of novel three-layer speckle tracking system and compared the diagnostic accuracy with experienced visual interpretation. Methods: An ameroid constrictor was placed around ...
Chang Anna Marie - - 2011
Academic Emergency Medicine 2011; 18:1065-1071 © 2011 by the Society for Academic Emergency Medicine ABSTRACT: Objectives:  Coronary angiography calcium score (CACS) is included for patients who receive coronary computed tomography angiography (CTA) as part of diagnostic testing for low-risk chest pain. Both tests add radiation exposure, and it is unclear ...
Farooq Vasim - - 2011
Percutaneous coronary intervention (PCI) of multivessel and/or left main stem disease have been shown to be potentially legitimate revascularization alternatives in appropriately selected patients. Risk stratification is an important component in guiding patients to identify the most appropriate revascularization modality (PCI or coronary artery bypass grafting [CABG]) in conjunction with ...
Park Seung-Jung - - 2011
Fragmented QRS (fQRS) on 12-lead electrocardiography reflects conduction delay caused by myocardial fibrosis and dysfunction. Ventricular fibrosis detected by late gadolinium enhancement (LGE) cardiac magnetic resonance (CMR) is reportedly correlated with worse clinical outcomes in adults with repaired tetralogy of Fallot (TOF). The aim of this study was to assess ...
Girasis Chrysafios - - 2011
AimsTo investigate the ability of SYNTAX score and Clinical SYNTAX score (CSS) to predict very long-term outcomes in an all-comers population receiving drug-eluting stents.Methods and resultsThe SYNTAX score was retrospectively calculated in 848 patients enrolled in the SIRolimus-eluting stent compared with pacliTAXel-Eluting Stent for coronary revascularization (SIRTAX) trial. The CSS ...
Yacoub Sophie - - 2011
OBJECTIVE:: Dengue continues to cause significant global morbidity and mortality. Severe disease is characterized by cardiovascular compromise from capillary leakage. Cardiac involvement in dengue has also been reported but has not been adequately studied. SETTING:: Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam. DESIGN:: Seventy-nine patients aged 8-6 yrs ...
Ahlberg Alan W - - 2011
Although stress gated technetium-99m single-photon emission computed tomographic (SPECT) myocardial perfusion imaging (MPI) is useful in differentiating ischemic from nonischemic cardiomyopathy, its prognostic usefulness in this patient population is not well understood. Consecutive unique patients with suspected coronary artery disease who, for clinical indications, underwent technetium-99m rest and stress MPI ...
Wang Fang - - 2012
This study aimed to explore if the right ventricular outflow tract (RVOT) pacing is superior to right ventricular apical (RVA) pacing on the overall left ventricular (LV) function and regional wall motion. Sixty patients with atrio-ventricular (AV) block and normal ejection fraction undergoing dual-chamber pacemaker implantation were randomized to permanent ...
Liga Riccardo - - 2011
Multislice CT provides information on coronary luminal narrowing and on the structural abnormalities of the coronary arterial wall using densitometric analysis. We sought to investigate the effects of coronary luminal narrowing, structural abnormalities of the coronary arterial wall, and cardiovascular risk factors on regional and global myocardial blood flow (MBF) ...
Petretta Mario - - 2011
The aim of this study was to compare the prognostic value of coronary calcium scoring and coronary computed tomography (CT) angiography in assessing the cardiac risk and its temporal characteristics in patients at intermediate pre-test likelihood of coronary artery disease (CAD). Cardiac CT was performed in 326 patients at intermediate ...
Lux Robert L - - 2011
Repolarization heterogeneity and rate dependency have long been established as factors contributing to arrhythmogenic risk. However, there are conflicting observations regarding the nature and extent of ventricular repolarization heterogeneity that complicate understanding of arrhythmogenic mechanisms. To explore these disparate findings, we studied ventricular repolarization heterogeneity and rate dependency in a ...
Arraiza M - - 2011
PURPOSE: To compare the accuracy of cardiac dual-source CT (DSCT) reconstructions obtained at 5% and 10% of the cardiac cycle and MRI for quantifying global left ventricular (LV) function and mass in heart transplant recipients. MATERIAL AND METHODS: We prospectively included 23 heart transplant recipients (21 male, mean age 60±11.7 ...
Davies Justin E JE MRCP, International Centre for Circulatory Health, St. Mary's Campus, Paddington, London, W2 1LA, UK. - - 2011
Aortic stenosis causes angina despite unobstructed arteries. Measurement of conventional coronary hemodynamic parameters in patients undergoing valvular surgery has failed to explain these symptoms. With the advent of percutaneous aortic valve replacement (PAVR) and developments in coronary pulse wave analysis, it is now possible to instantaneously abolish the valvular stenosis ...
Giubbini Raffaele Mario Tarquinio - - 2011
BACKGROUND: Attenuation correction (AC) has been shown to improve the accuracy of myocardial perfusion single photon emission computed tomography (SPECT) for the detection and evaluation of patients with coronary artery disease. Attenuation artifacts, because of diaphragmatic attenuation, frequently affect the evaluation of the inferior wall, especially in male patients. PURPOSE: ...
Smith Andrew H AH Division of Pediatric Critical Care Medicine, Department of Pediatrics, Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, Tennessee, USA. - - 2011
Milrinone reduces the risk of low cardiac output syndrome for some pediatric patients after congenital heart surgery. Data from adults undergoing cardiac surgery suggest an association between milrinone and an increased risk of postoperative arrhythmias. We tested the hypothesis that milrinone is an independent risk factor for tachyarrhythmias after congenital ...
Nojiri Ayumi - - 2011
BACKGROUND: Late gadolinium enhancement (LGE) of cardiac magnetic resonance imaging (MRI) represents myocardial fibrosis and may be related to the clinical outcome of various heart diseases. This study evaluated the relationship between LGE and cardiac events in hypertrophic cardiomyopathy (HCM) using a new scoring method. METHODS AND RESULTS: This study ...
Athanasopoulos Leonidas V - - 2011
: We investigated whether anaerobic threshold (AT) and ventilatory efficiency (minute ventilation/carbon dioxide production slope, VE/VCO2 slope), both significantly associated with mortality, can be predicted by questionnaire scores and/or other laboratory measurements. : Anaerobic threshold and VE/VCO2 slope, plasma N-terminal pro-brain natriuretic peptide (NT-proBNP), and the echocardiographic markers left ventricular ...
Bamberg Fabian - - 2011
Purpose: To determine the feasibility of computed tomography (CT)-based dynamic myocardial perfusion imaging for the detection of hemodynamically significant coronary artery stenosis, as defined with fractional flow reserve (FFR). Materials and Methods: Institutional review board approval and informed patient consent were obtained before patient enrollment in the study. The study ...
Kazmi Mustapha H - - 2011
In addition to demonstrating luminal narrowings, cardiac computed tomography angiography (CTA) has the ability to detect nonstenotic plaque, vessel wall calcification and can assess left ventricular function. CTA prognostic studies have considered these components individually and in combination to produce novel risk factor scores to help predict clinical outcomes. In ...
Fuernau Georg - - 2011
The objective of this study was to assess the area at risk (AAR) in ST-segment elevation myocardial infarction with 2 different cardiac magnetic resonance (CMR) imaging methods and to compare them with the validated angiographic Alberta Provincial Project for Outcome Assessment in Coronary Heart Disease Score (APPROACH-score) in a large ...
Bhatia Nisha L - - 2011
Owing to inconsistent diagnostic criteria and small heterogeneous cohorts, little is known about the long-term outcomes of adult left ventricular noncompaction (LVNC), a rare cardiomyopathy with potentially serious outcomes. This systematic overview aimed to better delineate the natural history of adult LVNC. A comprehensive computerized search using "noncompaction" and its ...
Natarajan Deepak - - 2011
This case report describes the management of a middle-aged hypertensive male patient who presented with acute inferior ST-segment elevation myocardial infarction accompanied with severe hyperkalemia. His coronary angiography revealed a thread like right coronary artery along its entire course and normal left coronary artery system with patent coronary stents in ...
Park Sung-Ji - - 2011
The role of preoperative transthoracic echocardiography (TTE) for the risk stratification has not been well investigated yet. We compared the predictive power of TTE with N-terminal pro-brain natriuretic peptide (NT-proBNP), a representative biomarker that predicts perioperative cardiovascular risk, and investigated whether these tests have incremental value to the clinically determined ...
Mahler Simon A - - 2011
Patients with low-risk chest pain have high utilization of stress testing and cardiac imaging, but low rates of acute coronary syndrome (ACS). The objective of this study was to determine whether the HEART score could safely reduce objective cardiac testing in patients with low-risk chest pain. A cohort of chest ...
Mandapaka Sangeeta - - 2011
During cardiovascular stress, if right ventricular (RV) stroke volume exceeds left ventricular (LV) stroke volume, then a large volume of blood is displaced into the pulmonary circulation that may precipitate pulmonary edema. We sought to determine the metrics by which cardiovascular magnetic resonance (CMR) could measure simultaneous displacement of RV ...
Zhang Yiyi - - 2011
Extremely abnormal prolongation of the electrocardiographic QT interval is associated with malignant ventricular arrhythmias and sudden cardiac death. However, the implications of variations in QT-interval length within normal limits for mortality in the general population are still unclear. We performed a meta-analysis to investigate the relation of QT interval with ...
Loring Zak - - 2011
The Selvester QRS score translates subtle changes in ventricular depolarization measured by the electrocardiogram into information about myocardial scar location and size. This estimated scar has been shown to have a high degree of correlation with autopsy-measured myocardial infarct size. In addition, multiple studies have demonstrated the value of the ...
Macdonald Stephen Pj - - 2011
Objective: To compare two methods of risk stratification for suspected acute coronary syndrome (ACS) in the ED. Methods: A prospective observational multicentre study was undertaken of patients undergoing evaluation in the ED for possible ACS. We compared the National Heart Foundation of Australia/Cardiac Society of Australia and New Zealand (NHF/CSANZ) ...
Chahal Harjit - - 2012
The relationship between obesity and right ventricular (RV) morphology is not well studied. We aimed to determine the association between obesity and RV structure and function in a large multiethnic population-based cohort. The MESA-Right Ventricle Study measured RV mass and volumes by cardiac MRI in participants aged 45 to 84 ...
Barison Andrea - - 2011
Hypertension is increasingly considered a strong and independent risk factor for supraventricular and ventricular arrhythmias. The presence and complexity of both supraventricular and ventricular arrhythmias influence morbidity, mortality, as well as the quality of life of patients. Diastolic dysfunction of the left ventricle, left atrial size and function, and left ...
Dedic Admir - - 2011
To determine and compare the prognostic value of cardiac computed tomographic (CT) angiography, coronary calcium scoring, and exercise electrocardiography (ECG) in patients with chest pain who are suspected of having coronary artery disease (CAD). This study complied with the Declaration of Helsinki, and the local ethics committee approved the study. ...
Elderon Larkin - - 2011
BACKGROUND- In 2008, the American Heart Association (AHA) recommended a 2-step screening method, consisting of the 2-item Patient Health Questionnaire (PHQ-2) followed by the 9-item Patient Health Questionnaire (PHQ-9), for identifying depression in cardiovascular patients. The accuracy and prognostic value of this screening method have not been evaluated. METHODS AND ...
Mahfouz Ragab A - - 2011
Background: Although coronary flow reserve (CFR) is reduced in hypertensive patients, data regarding the endothelial response of coronary vasomotion and its relation to left ventricular (LV) function in their offspring is limited. Objective: To investigate the endothelial response of coronary flow, using cold pressor test (CPT), in offspring of hypertensive ...
Park Min Jung - - 2011
Helicobacter pylori causes numerous extragastric manifestations, including coronary heart disease. The coronary artery calcification (CAC) score, measured using computed tomography (CT) has been used as a screening test for coronary atherosclerosis. This study investigated the association between H. pylori seropositivity and CAC scores in a screening population. Patients who underwent ...
López-Alvarez Jordi - - 2011
OBJECTIVES: Loss of temporal synchrony of myocardial contraction has been shown to reduce systolic function and be responsible for disease progression in people. The objective of this study is the assessment of inter- and intra ventricular synchrony in healthy Doberman Pinschers and those with dilated cardiomyopathy (DCM) by use of ...
< 1 2 3 4 5 6 7 8 9 10 >