Search Results
Results 101 - 150 of 1119
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Erlinge David - - 2012
Aims: Prior evaluations of endovascular cooling during primary percutaneous coronary intervention (PCI) for acute myocardial infarction (AMI) have suggested variability in treatment effect related to core temperature at the time of reperfusion, to infarct location and time from symptom onset to reperfusion. Recent results from a randomised feasibility study suggest ...
Higuchi Ko - - 2012
PURPOSE: To investigate myocardial viability in chronic ischemic heart disease by myocardial perfusion and regional contraction analysis using 256-slice MSCT coronary angiography (CCTA). METHODS: In 30 patients with prior myocardial infarction (MI), CCTA with retrospective ECG-gating and stress-redistribution thallium-201 SPECT were performed. Using the same raw data as used for ...
Lupi Alessandro - - 2012
Background: Biodegradable polymer drug eluting stents (BP-DES) have been developed to overcome the limitations of first generation durable polymer DES (DP-DES) but the clinical results of different BP-DES are not consistent. We performed a meta-analysis to compare the outcomes of BP-DES and DP-DES in the treatment of coronary artery disease ...
Altiok Ertunc - - 2012
AIMS: Separate analysis of endocardial and epicardial myocardial layer deformation has become possible using strain-encoded cardiovascular magnetic resonance (SENC) and 2D-dimensional speckle tracking echocardiography (Echo). This study evaluated and compared both modalities for the assessment of infarct transmurality as defined by late gadolinium enhancement (LGE) cardiovascular magnetic resonance (CMR). METHODS ...
Mastandrea Paolo - - 2012
Abstract Heart failure with normal ejection fraction (HFNEF) accounts for approximately 50% of heart failure (HF) cases. To establish the utility of brain natriuretic peptide (BNP) in differentiating HF-related severe dyspnea from non-HF-related acute dyspnea, we used an estimation formula (eF) that was obtained from a series of three meta-regressions. ...
Zhang Ziheng - - 2012
A high-temporal resolution 2D flow pathline analysis method to study early diastolic filling is presented. Filling patterns in normal volunteers (n = 8) and canine animals [baseline (n = 1) and infarcted (n = 6)] are studied. Data are acquired using spatial modulation of magnetization with polarity alternating velocity encoding, ...
Falcão Sandra Nivea Dos Reis Saraiva - - 2012
BACKGROUND: Recently, multimodality imaging has been demonstrated to improve the sensitivity of dobutamine stress for the diagnosis of coronary artery disease (CAD). Objective: We sought to determine the additional value of myocardial perfusion (MP) over wall-motion (WM) analysis for detecting CAD, using real time myocardial contrast echocardiography (RTMCE) and cardiovascular ...
Bozbeyoglu Emrah - - 2012
INTRODUCTION: A rapid restoration of epicardial coronary flow in acute myocardial infarction is crucial for saving jeopardized myocardium. The no-reflow phenomenon is one of the major problems in a primary percutaneous coronary intervention (PCI) and may be defined as an outcome of different pathological pathways. Our aim was to evaluate ...
Zeb Irfan - - 2012
Regional ejection fraction (REF) provides important functional information of the left ventricular regional myocardium. We aimed to test the diagnostic accuracy of computerized REF analysis for detecting the ischemia and significant stenosis with multidetector CT angiography (MDCT). This is a retrospective study including 155 patients who underwent MDCT scans for ...
Cho Yasunori - - 2012
We retrospectively analysed the long-term results and mid-term features of the surgical procedures on left ventricular (LV) volume, geometry, function and mitral regurgitation (MR) in patients with ischaemic cardiomyopathy (antero-septal dominant) who underwent LV reconstruction (LVR). The LVR was mainly accomplished by the Dor procedure, modified by the Fontan stitch ...
Wu Xiaofan - - 2012
BACKGROUNDS: Vessel expansion and axial plaque redistribution or distal plaque embolization contribute to the increase in lumen dimensions after stent implantation. METHODS AND RESULTS: Pre-intervention and post-intervention grayscale volumetric intravascular ultrasound was used to study 43 de novo native coronary lesions treated with TAXUS or Express bare metal stents in ...
Menon Shaji C - - 2012
The objective of this study was to compare histopathological changes in hypoplastic left heart syndrome right ventricles (RV) of patients undergoing Sano and modified Blalock-Taussig (MBT) shunt and correlate them with echocardiographic findings. Myocardial tissue samples were obtained from hearts with Sano or MBT shunts after transplantation or at autopsy. ...
Jeong Ji-Wook - - 2012
We suggest a sequential algorithm for the detection of the ventricular fibrillation (VF) and ventricular tachycardia (VT) of a rate above 180 bpm, so called shockable rhythms. The built-in algorithm for ECG analysis embedded in the portable bio-signal sensing module is aimed to discriminate between shockable and non-shockable rhythms and ...
Lu Jingjun J Department of Emergency Medicine, Renmin Hospital of Wuhan University, Wuhan, China. - - 2012
It is assumed that acute myocardial infarction affects renal function. To study the mechanism, we used mice following permanent ligation of their left coronary artery that results in extensive myocardial infarction. Soon after ligation, there was a marked rise in circulating pro-inflammatory cytokines and malondialdehyde (thiobarbituric acid-positive evidence of lipid ...
DeSimone Christopher V CV Departments of Internal Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, - - 2012
Radiofrequency ablation for atrial fibrillation (AF) frequently involves energy delivery at the ostia of the thoracic veins. Detailed evaluation of the myocardium extending into the caval veins, vein of Marshall, as well as at the pulmonary vein ostia has not been completely evaluated. Post-mortem assessment of 620 formalin-fixed hearts (mean ...
Duran Jason M JM Temple University School of Medicine, Cardiovascular Research Center, Temple University, PA, - - 2012
Novel therapies for myocardial infarction (MI) involving stem cells, gene therapy, biomaterials, or revascularization strategies have shown promise in animal studies and clinical trials, but results have been limited partially due to the injection of therapeutics into ischemic myocardium that cannot support their mechanism of action. Accurate targeting of therapeutics ...
Wilms Heath R - - 2012
To evaluate police and autopsy reports in sudden unexplained deaths in 0-40 year olds. A structured, blind review of police and autopsy reports send to a cardiac genetic service from before (February 2006-December 2007) and after (January-December 2009) new best practice guidelines were introduced in Australia and New Zealand was performed. ...
Boolani Hemant - - 2012
Heart failure (HF) is a common cause of pleural effusion. Atrial tachyarrhythmias (ATa) can precipitate HF. ATa precipitating unilateral pleural effusion (PLE) has not been reported. We report a case of ATa in a patient with hypertrophic cardiomyopathy with recurrent unilateral rightsided PLE and resolution of effusion with catheter ablation ...
van der Weg Kirian - - 2012
PURPOSE: The objective of this study was to assess the involvement and extent of lateral wall myocardial infarction (MI) in patients with a first nonanterior wall MI, as reflected by changes in precordial leads. Delayed enhancement cardiac magnetic resonance imaging was as used a gold standard to localize and quantify ...
Tastekin Ebru - - 2012
Hepatocellular carcinoma (HCC) is the most common primary tumor of the liver.(1,2) The most common extrahepatic metastatic sites are lung, abdominal lymph nodes and bone, while its cardiac metastasis is rare.(2,3) Metastasis of HCC into the cardiac cavity is mostly caused by direct tumor invasion of vena cava inferior with ...
Farooqi Kanwal M - - 2012
Myocardial infarction in a neonate is rare. We describe the case of a full-term male who presented with respiratory distress. A chest radiograph demonstrated cardiomegaly. An electrocardiogram revealed ST segment changes suggestive of ischemia. Cardiac enzymes were elevated and an echocardiogram revealed a regional wall motion abnormality. Cardiac catheterization was ...
Khoueiry Georges - - 2012
Cardiac papillary fibroelastomas are the most common primary valvular tumors. Generally benign, they account only for about 10% of all primary cardiac neoplasms, can occur in normal or diseased hearts, and are associated strongly with open heart surgery and radiotherapy. They are, in most cases, incidental findings, but can be ...
Varga-Szemes Akos - - 2012
OBJECTIVES: To develop an MRI compatible, percutaneous technique for the generation of non-reperfused myocardial infarct (MI). BACKGROUND: Modeling non-treated MI has major importance in the development and preclinical testing of new therapeutic strategies for patients missing the time window suitable for revascularization following MI. METHODS: In 31 male swine, non-reperfused ...
Modica Maddalena - - 2012
To evaluate the psychological characteristics of coronary heart disease (CHD) patients after coronary artery bypass grafting (CABG) by cluster analysis of Minnesota Multiphasic Personality Inventory (MMPI-2) questionnaires and to assess the impact of the profiles obtained on long-term outcome. 229 CHD patients admitted to cardiac rehabilitation filled in self-administered MMPI-2 ...
Ma Jianying - - 2012
Although coronary microembolization (CME) is a frequent phenomenon in patients undergoing percutaneous coronary intervention, few data are available on the changes in left ventricular ejection fraction (LVEF) and coronary flow reserve (CFR) after CME. In this study, six miniature swine of either sex (body weight 21-25 kg) were used to ...
Legutko Jacek - - 2012
An occlusion or severe stenosis (angiographic culprit lesion) of the infarct-related artery is frequently located at the site of the maximum thrombus burden, whereas the origin of the plaque rupture (the true culprit) can be situated proximal or distal to it. The aim of this study was to examine stent ...
Birner Christoph - - 2012
Heart failure causes electrophysiological changes in the heart. Downregulation of repolarizing K+-currents leads to a prolongation of the cardiac action potential. Nevertheless, little is known about the differential expression of atrial and ventricular K+-channels in the failing heart. Ten rabbits underwent progressive rapid right ventricular pacing for 30 days. Digitized ECGs ...
Gilbert Kevin C - - 2012
BACKGROUND: We report a rare case of a mediastinal goiter confined to the thoracic inlet and cavity presenting with ventricular tachycardia as the sole clinical manifestation. METHODS AND RESULTS: The patient did not have any of the typical features of a mediastinal goiter such as neck swelling, dysphagia, or respiratory ...
Gelsomino Sandro - - 2012
OBJECTIVESThe effects of operational modes of intra-aortic balloon pumping (IABP) on coronary haemodynamics and oxygen delivery/demand ratio are unknown and were investigated in an experimental model of myocardial ischaemia reperfusion.METHODSHealthy swine (n = 24) underwent 120-minute ligation of the left anterior descending coronary artery followed by 24 h of reperfusion and were randomly ...
Wilhelm Matthias - - 2012
Long-term endurance sports are associated with atrial remodeling and an increased risk for atrial fibrillation (AF) and atrial flutter. Pro-atrial natriuretic peptide (pro-ANP) is a marker of atrial wall tension and elevated in patients with AF. The aim of this study was to test the hypothesis that atrial remodeling would ...
Louzada Paulo Roberto - - 2012
Background: Ventricular over-drainage is a common complication of dysfunctional ventriculoperitoneal devices. Subdural haematomas are usually the most common lesions associated with that complication. Such lesions may arise after ventricular collapse and bridging veins disruption that follows over-drainage, thus contributing to distortion of brain parenchyma, increased intracranial hypertension and neurological decline. ...
Hunter Jonathan Michael - - 2012
We report the case of an immunocompetent 83-year-old man with metastatic neoplastic infiltration of the heart from primary squamous cell carcinoma (SCC) of the skin. Death was from cardiopulmonary collapse due to left ventricular failure with features of right ventricular inflow tract obstruction. Metastatic tumours involving the heart rarely originate ...
Sidhu Maninder - - 2012
Holter electrocardiogram recording revealed symptomatic prolonged ventricular standstill lasting for about two minutes which terminated without any external cardiopulmonary resuscitation. Ann Noninvasive Electrocardiol 2012;17(1):61-62.
Ker James - - 2012
Thyroid hormone exerts numerous effects on the cardiovascular system. Hypothyroidism can lead to various electrocardiographic and mechanical changes in the heart and blood vessels.The potential risk for sudden cardiac death in patients with hypothyroidism have never been properly explored. However, numerous reports of various electrocardiographic changes indicative of such a ...
Morioka Hiroshi - - 2012
We describe a case of 78-year-old woman with a 1-week history of fever and left hemiparesis. Head magnetic resonance imaging showed a small infarct. After admission, she showed altered consciousness and another small infarct. She finally had diagnoses of miliary tuberculosis (miliary-TB) and tuberculous meningitis (TBM). She recovered after receiving ...
Lodi-Junqueira Lucas - - 2012
The role of intravascular ultrasound (IVUS) in percutaneous coronary interventions (PCI) is still controversial despite several previously published meta-analyses. A meta-analysis to evaluate the controversial role of IVUS-guided PCI with bare-metal stenting was performed and a previous published meta-analysis was re-evaluated in order to clarify the discrepancy between results ...
Russo Alessia - - 2012
Leukocyte telomere length (LTL) provides a potential marker of biological age, closely related to the endothelial dysfunction and consequently to the atherosclerotic process. To investigate the relationship between the LTL and the risk of premature acute myocardial infarction and to evaluate the predictive value of LTL on the onset of ...
Boštjančič Emanuela - - 2012
Cardiac sarco(endo)plasmic reticulum calcium ATPase-2 (SERCA2) plays one of the central roles in myocardial contractility. Both, SERCA2 mRNA and protein are reduced in myocardial infarction (MI), but the correlation has not been always observed. MicroRNAs (miRNAs) act by targeting 3'-UTR mRNA, causing translational repression in physiological and pathological conditions, including ...
Wang Yunji Y Department of Electrical and Computer Engineering, University of Texas at San Antonio, San Antonio, - - 2012
About 6 million Americans suffer from heart failure and 70% of heart failure cases are caused by myocardial infarction (MI). Following myocardial infarction, increased cytokines induce two major types of macrophages: classically activated macrophages which contribute to extracellular matrix destruction and alternatively activated macrophages which contribute to extracellular matrix construction. ...
Lee Dae In - - 2011
We report a case of thymic carcinoma that was initially detected by echocardiography in an 80-year-old male who visited the emergency room for chest pain and had a history of myocardial infarction and percutaneous coronary intervention. Transthoracic echocardiography showed a huge extracardiac mass that was located in the anterior mediastinum ...
Motoki Koichiro - - 2011
Double Chamber Tachycardias Originating from the Aortic Sinus of Valsalva. Monomorphic ventricular tachycardia is basically a benign phenomenon in patients without structural heart disease. The focal source of the tachycardia is usually located in the right ventricular outflow tract and more rarely in the left ventricular outflow tract. Aortic sinus ...
Matsuyama Taka-Aki - - 2011
Atrial Septum, Coronary Sinus, and Atrioventricular Node. Introduction: The tissues in the posteroinferior atrioventricular (AV) junction around the AV node are important in procedures for ablating and manipulation of catheters in and around the coronary sinus (CS). However, information with regard to the histological arrangement of perinodal myocardium relative to ...
Palmer Christopher - - 2011
At 2:10 pm, a 40-year-old Caucasian woman with no known medical history called 911 complaining of substernal, crushing chest pain that had started 2 to 3 hours before she called emergency medical services (EMS). EMS arrived at 2:24 pm and obtained a 12-lead electrocardiogram (ECG) diagnostic of ST-segment elevation myocardial ...
Radojevic Nemanja - - 2012
It is well known that atrial infarctions are rare comparing to the ventricular. They cannot easily be verified on ECG and the standard autopsy technique does not include a detailed review of the atrial wall, so the atrial infarction often remains undiagnosed. A 63-year-old male was treated and died in ...
Di Bella G - - 2011
Cardiac allograft vasculopathy (CAV) is an accelerated form of coronary artery disease affecting both intramyocardial and epicardial coronary arteries and is observed in patients during long-term survival after cardiac transplantation. We report a case of CAV complicated with silent transmural myocardial infarction and massive left ventricular thrombus formation associated with ...
Lim Hoong Sern - - 2011
A secondary r' wave in V(1) on surface electrocardiogram (ECG) has been described in association with left ventricular preexcitation via an accessory pathway. We present a case that demonstrates the mechanism for this ECG observation. Ann Noninvasive Electrocardiol 2011;16(4):407-408.
Stöllberger Claudia - - 2011
BACKGROUND: Left ventricular hypertrabeculation/noncompaction (LVNC) is a cardiac abnormality whose echocardiographic criteria are still controversial. Cooperation between echocardiographic laboratories may contribute to uniformly accepted criteria, as illustrated by the following pilot study. METHODS AND RESULTS: Echocardiograms proposed for inclusion into a registry were reviewed. Three experts with 17-26years experience with ...
Payne Alexander R AR National Heart, Lung, and Blood Institute, National Institutes of Health, DHHS, Bethesda, MD 20892-1061, - - 2011
Myocardial hemorrhage after myocardial infarction (MI) usually goes undetected. We investigated the diagnostic accuracy of bright-blood T(2)-weighted cardiac MRI for myocardial hemorrhage in experimental MI. MI was created in swine by occluding the left anterior descending (n=10) or circumflex (n=5) coronary arteries for 90 minutes followed by reperfusion for ≤3 ...
Ohrui Nobuhiro - - 2011
Cardiovascular diseases can lead to sudden in-flight incapacitation and long-term disability in aircraft pilots. Electrocardiogram (ECG) has been widely used to screen for these diseases in routine aeromedical examinations. Several ECG changes such as complete left bundle-branch block (CLBBB) and left ventricular hypertrophy (LVH) have been associated with increased likelihood ...
Nimmermark Magnus O - - 2011
The study purpose is to determine whether numeric and/or graphic ST measurements added to the display of the 12-lead electrocardiogram (ECG) would influence cardiologists' decision to provide myocardial reperfusion therapy. Twenty ECGs with borderline ST-segment deviation during elective percutaneous coronary intervention and 10 controls before balloon inflation were included. Only ...
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