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Results 101 - 150 of 2339
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Tigges Stefan - - 2012
Accurate coronary artery calcium scoring improves risk stratification in some strata of the population. We evaluated individual and combined effects of reader experience, heart rate, vessel displacement, and trajectory on computed tomography (CT) Agatston score, calcium volume, and calcium mass in a cardiac phantom model. A cardiac motion phantom was ...
Viana Fabiano F - - 2012
OBJECTIVES: A single or dual-dose strategy for myocardial protection is attractive in long operations, in avoiding the need to interrupt the procedure to re-administer cardioplegia. We hypothesized that a single administration of Bretschneider histidine-tryptophan-ketoglutarate (HTK) crystalloid solution (Custodiol) offers myocardial protection comparable with repeated tepid blood cardioplegia. METHODS: We reviewed ...
Barold S S - - 2012
This report describes a new cause of desynchronization encountered in a cardiac resynchronization device functioning in the VVIR mode. Left ventricular stimulation was inhibited when the sensor-driven rate exceeded the programmed upper tracking rate. With these devices, it is important to program the maximum tracking interval (essentially equivalent to a ...
- - 2012
The following articles are being highlighted as part of Circulation: Arrhythmia and Electrophysiology's Topic Review series. This series will summarize the most important manuscripts, as selected by the editors, published in Circulation: Arrhythmia and Electrophysiology, Circulation, and the other Circulation subspecialty journals. The studies included in this article represent the ...
Fukuda Yamato - - 2012
BACKGROUND: E/e' and s' are thought to reflect left ventricular diastolic and systolic function, respectively. However, there are no reports on the combined use of E/e' and s' in predicting the outcome in acute myocardial infarction (AMI). METHODS: For 20 months beginning in October 2006, we enrolled 65 AMI patients who ...
Motwani Manish - - 2012
BACKGROUND: Although left ventricular hypertrophy (LVH) in Fabry disease (FD) can improve with enzyme-replacement therapy (ERT), the response is difficult to predict. Furthermore, the response of other cardiac features such as aortic dilatation and ECG changes are poorly understood. METHODS: A local registry of 66 patients with FD was studied. ...
Putaala J - - 2012
AIM: To determine the functional outcome in a cohort of young adults with ischemic stroke patients, focusing on components of lipid profile. METHODS: In our registry including consecutive patients with first-ever ischemic stroke aged 15-49 from 1994 to 2007, we analyzed predictors of 3-month functional outcome (modified Rankin Scale, mRS). ...
Fesmire Francis M - - 2012
BACKGROUND: The HEART score uses elements from patient History, Electrocardiogram, Age, Risk Factors, and Troponin to obtain a risk score on a 0- to 10-point scale for predicting acute coronary syndromes (ACS). This investigation seeks to improve on the HEART score by proposing the HEARTS(3) score, which uses likelihood ratio ...
Liang Yu-Jia - - 2012
AimsThe aim of this study was to assess the contribution of left ventricular (LV) systolic dyssynchrony to functional mitral regurgitation (MR).Methods and resultsPatients (n = 136) with LV systolic dysfunction (ejection fraction <50%) and at least mild MR were prospectively recruited. The effective regurgitant orifice area (EROA) was assessed by ...
Khan Muhammad Fahad - - 2012
Obesity is a growing worldwide problem and the prevalence of heart failure is also on the rise. Obesity itself is an independent risk factor for the development of heart failure and the case of obesity-related heart failure is thought to be multifactorial. Obesity leads to increased central and total blood ...
Koyak Zeliha - - 2012
BACKGROUND: A recently developed risk score model aims to predict appropriate implantable cardioverter defibrillator (ICD) therapy for primary prevention of sudden cardiac death in tetralogy of Fallot (TOF). We assessed the validity of the proposed risk score model. METHODS: Patients included in a retrospective international cohort were stratified according to ...
Granziera Cristina - - 2012
Background: The role of the non-injured hemisphere in stroke recovery is poorly understood. In this pilot study, we sought to explore the presence of structural changes detectable by diffusion tensor imaging (DTI) in the contralesional hemispheres of patients who recovered well from ischemic stroke. Methods: We analyzed serial DTI data ...
Biondi-Zoccai Giuseppe - - 2012
Aims: We aimed to appraise the predictive accuracy of a novel and user-friendly risk score, the ACEF (age, creatinine, ejection fraction), in patients undergoing PCI for coronary bifurcations. Methods and results: A multicentre, retrospective study was conducted enrolling consecutive patients undergoing bifurcation PCI between January 2002 and December 2006 in ...
Dorosz Jennifer L - - 2012
The primary aim of this systematic review is to objectively evaluate the test performance characteristics of three-dimensional echocardiography (3DE) in measuring left ventricular (LV) volumes and ejection fraction (EF). Despite its growing use in clinical laboratories, the accuracy of 3DE has not been studied on a large scale. It is ...
Obert Philippe - - 2012
The prevalence of severe obesity is increasing worldwide in adolescents. Whether it is associated with functional myocardial abnormalities remains largely unknown, potentially because of its frequent association with other cardiovascular risk factors and also use of insensitive techniques to detect subclinical changes in myocardial function. We used 2D vector velocity ...
Weng Li - - 2012
ABSTRACT: INTRODUCTION: Left ventricular (LV) dysfunction is common in septic shock. Its association with clinical outcome is still controversial. Tissue Doppler imaging (TDI) is a useful tool to quantify LV function, however, few knowledge is available about the prognostic value of these TDI variables in septic shock. Therefore, we performed ...
Carlsen Esben A - - 2012
BACKGROUND AND PURPOSE: Recent studies have shown that the Selvester QRS score is significantly correlated with delayed enhancement-magnetic resonance imaging (DE-MRI) measured myocardial infarct (MI) size in reperfused ST elevation MI (STEMI). This study further tests the hypothesis that Selvester QRS score correlates well with MI size determined by DE-MRI ...
Stähli B E - - 2012
Coronary computed tomography angiography (CCTA) provides information regarding lesion morphology and three-dimensional coronary anatomy incremental to coronary angiography. We addressed the question whether preprocedural CCTA bears potential for guiding percutaneous coronary interventions (PCI). Sixty-six coronary lesions attempted with PCI within 6 months of preprocedural CCTA were retrospectively assessed. Lesion parameters ...
Georgoulias Panagiotis - - 2012
To evaluate the incremental prognostic value of Tc-tetrofosmin early poststress lung/heart ratio (eLHR) and to assess the optimal cut-off value. We studied 503 patients (aged 61.3 years/SD=8.6 years, 302 men) with stress/rest Tc-tetrofosmin myocardial gated-single photon emission computed tomography and coronary angiography. To evaluate myocardial ischemia, the summed stress score, ...
Prabhudesai Amar R AR Department of Cardiology, St. John's Medical College and Hospital, Bengaluru - 34, Karnataka, India. - - 2012
To validate the global registry of acute coronary events (GRACE) score in acute coronary syndromes (ACS) patients and study its angiographic correlation. Two-hundred and thirty-five ACS patients were studied for the combined endpoint of all-cause in-hospital mortality and non-fatal infarction/reinfarction. We tested the predictive accuracy of the composite GRACE score ...
Wu Chuntao - - 2012
No simplified bedside risk scores have been created to predict long-term mortality after coronary artery bypass graft surgery. The New York State Cardiac Surgery Reporting System was used to identify 8597 patients who underwent isolated coronary artery bypass graft surgery in July through December 2000. The National Death Index was ...
Shimada Yuichi J - - 2012
Left ventricular (LV) hypertrophy is a fundamental prognostic factor in a variety of cardiac diseases. Three-dimensional echocardiography (3DE) has achieved better estimation of LV mass than 2-dimensional echocardiography. However, significant underestimation has often been reported, and no previous study has synthesized these data. The aim of this meta-analysis was to ...
Zynda Todd K - - 2012
OBJECTIVE: The purpose of this study was to determine if there was a relationship between angiographic lesion complexity and the extent of lipid core plaque (LCP) identified by catheter-based near-infrared spectroscopy (NIRS). BACKGROUND: The angiographic complexity of coronary artery disease (CAD) is used to predict outcomes in patients undergoing percutaneous ...
Shafii Alexis E - - 2012
Degenerative mitral valve disease is the leading cause of mitral regurgitation in North America. Surgical intervention has hinged on the symptoms and ventricular changes that develop as compensatory ventricular remodeling occurs. In the present study, we sought to characterize the temporal response of left ventricular (LV) morphology and function to ...
Inami Toru - - 2012
BACKGROUND: Sleep disordered breathing (SDB) is highly prevalent in patients with cardiovascular disease, although it is not clear whether SDB has any link to coronary atherosclerotic burden in patients with stable coronary artery disease (CAD). This study sought to analyze the links between SDB, coronary atherosclerotic burden, and cardiac biomarkers ...
Greif Martin - - 2012
Objectives: Pericardial adipose tissue (PAT) is associated with coronary artery plaque accumulation and the incidence of coronary heart disease. We evaluated the possible incremental prognostic value of PAT for future cardiovascular events. Methods: 145 patients (94 males, age 60 ± 10 years) with stable coronary artery disease underwent coronary artery ...
Correia Luis C L - - 2012
Objective: We aimed to test the hypothesis that hemoglobin values add prognostic information to the Global Registry of Acute Coronary Events (GRACE) score at admission in patients with non-ST elevation acute coronary syndromes (ACS). Methods: A total of 225 consecutive patients with non-ST elevation ACS were studied. Hemoglobin was measured ...
Gründeman Paul F - - 2012
We presented a novel experimental aneurysm model for studies in left ventricular (LV) reconstruction techniques and assessed LV function. In eight pigs, the LV radius and geometry were enlarged surgically on the beating heart by inserting an aortic allograft construct. Haemodynamics and LV dimensions were assessed by echocardiography at baseline ...
Kane John P - - 2012
PURPOSE OF REVIEW: A negative correlation between HDL cholesterol levels and risk of coronary artery disease has long been recognized. Emerging knowledge of the molecular speciation and functional properties of HDL provides an opportunity to study the atheroprotective effects of specific metabolic processes. The discovery of the quantum particle among ...
Mannacio Vito - - 2012
BACKGROUND: This multicenter study investigated the impact of previous percutaneous coronary interventions (PCI) on postoperative outcome and 5-year survival of subsequent coronary artery bypass grafting. METHODS: Among 7,855 patients who underwent isolated first-time coronary artery bypass grafting between January 2000 and December 2005, 6,834 (87%) had no previous PCI and ...
Lindekleiv Haakon - - 2012
QT Interval and the Risk of Myocardial Infarction and All-Cause Death. Introduction: The relationship between QT interval and cardiovascular disease is controversial. Methods: All male residents aged 20-61 years and female residents aged 20-56 years were invited to the Tromsø Study in 1986-1987. A total of 15,558 participants free of heart ...
Segal Nicolas - - 2012
OBJECTIVES: Ischemic postconditioning (PC) with "stuttering" reintroduction of blood flow after prolonged ischemia has been shown to offer protection from ischemia reperfusion injury to the myocardium and brain. We hypothesized that four 20-second pauses during the first 3minutes of standard CPR would improve post resuscitation cardiac and neurological function, in ...
Ritt Luiz E - - 2012
Chagas disease is a prevalent cause of heart failure in Latin America, and its prognosis is worse than other etiologies. The Heart Failure Survival Score has been used to assess prognosis in patients with heart failure; however, this score has not yet been studied in patients with Chagas cardiopathy. The ...
Lague Sabine L - - 2012
Anoxic survival requires the matching of cardiac ATP supply (i.e. maximum glycolytic potential, MGP) and demand (i.e. cardiac power output, PO). We examined the idea that the previously observed in vivo downregulation of cardiac function during exposure to severe hypoxia in tilapia (Oreochromis hybrid) represents a physiological strategy to reduce ...
Cameli Matteo - - 2012
The incremental value of left atrial (LA) deformation analysis by speckle tracking echocardiography compared with LA volume or LA ejection fraction as a cardiovascular risk marker has not been evaluated prospectively. We sought to compare LA function by speckle tracking echocardiography to other conventional LA parameters for prediction of adverse ...
Katsikis Athanasios - - 2012
OBJECTIVES: Various types of surgical and interventional procedures have been reported to cause cardiac sympathetic denervation. We aimed at evaluating the effects of coronary artery bypass grafting (CABG) in cardiac sympathetic innervation through meta-iodobenzyl-guanidine (MIBG) imaging. METHODS: MIBG imaging was performed in 21 patients with coronary artery disease (CAD) 1 ...
Weber Roland W - - 2012
BACKGROUND: We sought to prospectively determine foetal echocardiographic factors associated with neonatal interventions in borderline hypoplastic left ventricles. METHODS: Foetuses were included who had a left ventricle that was 2-4 standard deviations below normal for length or diameter and had forward flow across the mitral and aortic valves. Factors associated ...
Alexanderson Erick - - 2012
Coronary artery disease (CAD) is the primary cause of death in adults in the United States. Only 50% of patients who present with a myocardial infarction have a prior history of CAD. Non-invasive cardiac imaging tests have been developed to diagnose CAD. Current guidelines and systematic reviews have tried to ...
Ran Hong - - 2012
Background: To evaluate whether myocardial strain under adenosine stress calculated from two-dimensional echocardiography by automatic frame-by-frame tracking of natural acoustic markers enables objective description of myocardial viability in clinic. Methods and Results: Two-dimensional echocardiography and two-dimensional speckle tracking imaging (2D STI) at rest were performed first and once again after ...
Aroney Constantine N - - 2012
Coronary risk factors are poor at predicting adverse cardiac events in the individual patient, with more than 75% of all hard coronary events occurring in persons classified as low or intermediate risk. Myocardial ischaemia testing of asymptomatic persons is an inappropriate measure of myocardial infarction risk, and is plagued by ...
Douglas Roberto A G - - 2012
Background: The controversial effects promoted by cardiac resynchronization therapy (CRT) on the ventricular repolarization (VR) have motivated VR evaluation by body surface potential mapping (BSPM) in CRT patients. Methods: Fifty-two CRT patients, mean age 58.8 ± 12.3 years, 31 male, LVEF 27.5 ± 9.2, NYHA III-IV heart failure with QRS181.5 ± 14.2 ms, underwent 87-lead BSPM ...
de Haro-del Moral F Javier - - 2012
We investigated the diagnostic accuracy of (99m)Tc-3,3-diphosphono-1,2 propanodicarboxylic acid ((99m)Tc-DPD) scintigraphy in differentiating between monoclonal immunoglobulin light chain and transthyretin-related cardiac amyloidosis. Nineteen patients with documented cardiac amyloidosis were included: 8 with transthyretin-related amyloidosis (group A) and 11 with light chain amyloidosis (group B). All the patients underwent scintigraphy with ...
Wang Shang - - 2012
BACKGROUND: The prevalence of heart failure (HF) is increasing as the population ages, but its rapid diagnosis and phenotype identification remain challenging. We sought to determine whether acoustic cardiography can accurately identify HF and its phenotypes. METHODS: Three cohorts of patients were studied [94 with hypertension, 109 with HF and ...
Macdonald Stephen Pj - - 2012
ObjectiveTo evaluate the accuracy of a 2-h serial multiple biomarker (SMB) protocol for exclusion of myocardial infarction (MI) in the Emergency Department.MethodsA prospective, multicentre, observational study enrolled patients undergoing evaluation for possible MI. Blood samples at presentation and 2 h later were analysed for myoglobin, creatinine kinase-MB, troponin-I and B-natriuretic ...
Li Haiyan - - 2012
OBJECTIVE: To assess the association of Hemoglobin A1C (HbA1c) with acute brainstem infarctions (BSIs) and to determine whether HbA1c is an independent risk factor in BSIs patients. METHODS: 96 only BSIs patients were categorized into four groups according to HbA1c as <6%, ≥6% but <7%, ≥7% but <8%, or≥8%, respectively. ...
Rana Jamal S - - 2012
The value of coronary artery calcium (CAC) scoring versus multiple biomarkers in increasing risk prediction for cardiovascular disease (CVD) remains unknown. The study group consisted of 1,286 asymptomatic participants (mean ± SD 59 ± 8 years old) with no known coronary heart disease. Mean follow-up time was 4.1 ± 0.4 ...
Tomaszuk-Kazberuk Anna - - 2012
BACKGROUND: The aim of this study was to assess the value of the angiographically-derived Synergy Between Percutaneous Coronary Intervention With Taxus and Cardiac Surgery (SYNTAX) score in predicting mortality and major adverse cardiac events (MACEs) during a 3-year follow-up of dialysis patients undergoing a percutaneous coronary intervention or coronary artery ...
Chung Sheng-Ying - - 2012
Background: The in-hospital outcome of patients with profound cardiogenic shock (CS) undergoing extracorporeal membrane oxygenation (ECMO) and prognostic predictors were analyzed. Methods and Results: Between 2003 and 2010, 134 patients with profound CS undergoing 10-15min of cardiopulmonary cerebral resuscitation (CPCR) and ECMO were prospectively recruited, including 27.6% (37) with ST-elevation ...
Kamath Atul F - - 2012
Triage to the intensive care unit (ICU) after elective total hip arthroplasty proves a complex medical and resource decision point. A total of 1259 consecutive total hip arthroplasties were reviewed; 89 patients experienced unplanned ICU admissions. Significant risk factors for ICU admission in univariate analysis were age greater than 75 ...
Verhagen Sandra N - - 2012
BACKGROUND: A myocardial bridge (MB) is a band of myocardium covering a coronary artery segment, typically located in the left anterior descending coronary artery (LAD). Bridged segments of the coronary artery are isolated from the influence of perivascular adipose tissue. The aims of this study were to investigate the relationship ...
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