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Results 101 - 150 of 1757
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Mrdovic Igor - - 2013
OBJECTIVES: The present trial aims at examining whether antiplatelet regimen modification, guided by assessment of the on-treatment platelet reactivity, might result with clinical benefit in moderate to high-risk patients with ST-elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (PPCI). BACKGROUND: High platelet reactivity has been associated with an increased ...
Reddy Pramod - - 2013
ABSTRACT: Left ventricular failure (LVF) is a clinical syndrome caused by abnormal systolic or diastolic function failing to meet the metabolic requirements of the body. It is important to diagnose and manage LVF in the earliest stages to prevent mortality and morbidity. This article extensively reviews the diagnostic, therapeutic, and ...
Menon Venu V Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, OH, USA. - - 2013
We hypothesized that the insensitivity of the electrocardiogram in identifying acute circumflex occlusion would result in differences in the distribution of the infarct-related artery (IRA) between patients with non-ST-segment elevation myocardial infarction (NSTEMI) and STEMI enrolled in the Occluded Artery Trial. We also sought to evaluate the effect of percutaneous ...
Hausenloy Derek J DJ The Hatter Cardiovascular Institute, University College London, 67 Chenies Mews, London WC1E 6HX, UK. - - 2013
Coronary heart disease (CHD) is the leading cause of death and disability worldwide. Despite current therapy, the morbidity and mortality for patients with CHD remains significant. The most important manifestations of CHD arise from acute myocardial ischaemia-reperfusion injury (IRI) in terms of cardiomyocyte death and its long-term consequences. As such, ...
Lanza Gaetano A - - 2013
A growing amount of data is increasingly showing the relevance of coronary microvascular dysfunction (CMVD) in several clinical contexts. This article reviews techniques and clinical investigations of the main noninvasive and invasive methods proposed to study coronary microcirculation and to identify CMVD in the presence of normal coronary arteries, also ...
Talan Mark I - - 2013
Extensive research during the last decade demonstrated that a single systemic administration of -erythropoietin (EPO) lead to significant attenuation of myocardial infarction (MI) induced in animals, mostly small rodents, either by a myocardial ischemia followed by reperfusion or by a permanent ligation of a coronary artery. Both methods are critically ...
De Torres-Alba Fernando - - 2013
Coronary artery disease (CAD) and obstructive sleep apnea (OSA) are both complex and significant clinical problems. The pathophysiological mechanisms that link OSA with CAD are complex and can influence the broad spectrum of conditions caused by CAD, from subclinical atherosclerosis to myocardial infarction. OSA remains a significant clinical problem among ...
de Vries Arjen E - - 2013
Although telemonitoring is increasingly used in heart failure care, data on expectations, experiences, and organizational implications concerning telemonitoring are rarely addressed, and the optimal profile of patients who can benefit from telemonitoring has yet to be defined. To assess the actual status of use of telemonitoring and to describe the ...
Smith Rachel Ruckdeschel - - 2013
Cardiosphere-derived cells (CDCs) are under clinical development and are currently being tested in a clinical trial enrolling patients who have undergone a myocardial infarction. CDCs are presently administered via infusion into the infarct-related artery and have been shown in early clinical trials to be effective agents of myocardial regeneration. This ...
Draman M S MS Department of Endocrinology Royal College of Surgeons in Ireland, Connolly Hospital, Blanchardstown Dublin - - 2013
Silent myocardial ischaemia (SMI), defined as objective evidence of myocardial ischaemia in the absence of symptoms, has important clinical implications for the patient with coronary artery disease. We present a dramatic case of SMI in a diabetes patient who attended annual review clinic with ST elevation myocardial infarction. His troponin ...
Pride Yuri B - - 2012
Patients with myocardial infarction (MI) generally present with chest pain or pressure at rest or minimal exertion and have associated electrocardiographic changes and/or elevation of the biomarkers of myocardial necrosis. A subset of patients, however, experience little chest discomfort or do not present to medical attention despite experiencing symptoms. Unrecognized ...
Bakal Jeffrey A - - 2012
AimsThe selection of optimal endpoints for cardiovascular clinical trials continues to be challenging. We examined an alternative interpretation of a series of trials when the individual event severity is considered.Methods and resultsWe analysed three contemporary myocardial infarction (MI) trials of early percutaneous coronary intervention after fibrinolysis, using a weighted composite ...
Schmidt Michael R - - 2012
Early and successful restoration of myocardial reperfusion following an ischemic event is the most effective strategy to reduce final infarct size and improve clinical outcome. However, revascularization per se may induce further myocardial damage by myocardial ischemia-reperfusion injury and worsen clinical outcome. Therefore, new therapeutic strategies are required to protect ...
Park Seung-Jung - - 2012
PURPOSE OF REVIEW: To address the clinical benefit of fractional flow reserve (FFR) measurement in stable coronary artery disease (CAD) patients. RECENT FINDINGS: The efficacy of revascularization in patients with stable CAD has been debatable. However, there has been consensus that revascularization for ischemic-producing lesions may improve clinical outcomes. FFR ...
Vranckx Pascal - - 2012
BACKGROUND: Globalisation in coronary stent research calls for harmonization of clinical endpoint definitions and event adjudication. Little has been published about the various processes used for event adjudication or their impact on outcome reporting. METHODS AND RESULTS: We performed a validation of the clinical event committee (CEC) adjudication process on ...
Boyle Kimberly L - - 2012
To review the pharmacology, research developments, and clinical uses of pimobendan Original research articles and clinical studies from 1984 to August 2011. Pimobendan is approved for use in dogs for the treatment of congestive heart failure (CHF) secondary to chronic valvular heart disease (CVHD) and dilated cardiomyopathy (DCM). Expert-based veterinary ...
Jacquemart Caroline - - 2012
We report the case of a child with catecholaminergic polymorphic ventricular tachycardia, who had inappropriate electric shocks by an implantable cardioverter defibrillator and from recurrence of arrhythmias despite an appropriate β-blocking treatment. An additional treatment by flecainide completely suppressed inappropriate shocks due to sinusal tachycardia and ventricular tachyarrhythmias. We briefly ...
Hasdemir Can - - 2012
We present a case of 38-year-old woman with stress cardiomyopathy presenting to the emergency department with a 1-week history of recurrent syncope due to sustained polymorphic ventricular tachycardia. (PACE 2012;00:e1-e3).
Kazemi Ahmad - - 2012
The impact of platelet collagen receptor polymorphisms in the pathogenesis of myocardial infarction at young age remains unknown. To determine whether either of the two platelet collagen receptor polymorphisms (GP VI T13254C and GP Ia C807T) was associated with premature acute myocardial infarction. One hundred patients with premature acute myocardial ...
Wang L P - - 2012
Activation of the peroxisome proliferator-activated receptor g (PPARg) improves insulin sensitivity and inhibits atherosclerosis. Whether PPARg2 Pro12Ala polymorphism affects myocardial infarction is not clearly understood. We investigated a possible association of PPARg2 Pro12Ala polymorphism with obesity and myocardial infarction in Han Chinese in Hohhot, Inner Mongolia, China. We included 121 ...
Nascimento Bruno Costa do - - 2012
BACKGROUND: The sympathetic nervous system is of great importance in the pathogenesis of atrial fibrillation in systolic heart failure. The identification of polymorphisms in the beta1-adrenergic receptor gene (ADBR1) represents an important step in understanding this pathogenesis. OBJECTIVE: This study assessed the association between the two functional polymorphisms of the ...
Huemer Martin - - 2012
We present a patient with polymorphic ventricular tachycardia and subsequent ventricular fibrillation with acquired long QT syndrome secondary to herpes encephalitis.
Chang Wei-To - - 2012
Acute myocardial infarction is a highly prevalent cardiovascular disease in Taiwan. Among several etiological risk factors, obesity and inflammation are strongly associated with the frequency of hypertension, cardiovascular disease, diabetes, and myocardial infarction. To discriminate obesity- and inflammation-related genes and the onset of acute myocardial infarction (AMI), a case-control study ...
Wu Katherine C - - 2012
Microvascular obstruction (MO) or no-reflow phenomenon is an established complication of coronary reperfusion therapy for acute myocardial infarction. It is increasingly recognized as a poor prognostic indicator and marker of subsequent adverse LV remodeling. Although MO can be assessed using various imaging modalities including electrocardiography, myocardial contrast echocardiography, nuclear scintigraphy, ...
Wang Xiao X Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, - - 2011
The coronary slow flow phenomenon (CSFP) is an important, angiographic entity characterized by delayed progression of the injected contrast medium through the coronary tree. It is a frequent finding, typically observed in patients presenting with acute coronary syndromes. Although it is well known to interventional cardiologists for approximately four decades, ...
De Mattia Luca - - 2011
A 54-year-old patient with episodes of paroxysmal supraventricular tachycardia developed non-sustained polymorphic ventricular tachycardia during Valsalva manoeuvre.
Alidoosti Mohammad - - 2011
OBJECTIVES: To evaluate the association between collateral formation and some environmental factors along with a polymorphism in HIF-1A gene in selected Iranian patients with CAD. DESIGN AND METHODS: Patients with ≥70% narrowing in at least one coronary vessel according to coronary angiography were enrolled. The patients' demographic, clinical and biochemical ...
Simon T - - 2011
Paraoxonase-1 (PON1) Q192R polymorphism was recently suggested to determine per se clopidogrel response on major cardiovascular events (MACEs). We assessed the impact of PON1, CYP2C19, and ABCB1 polymorphisms on MACE in clopidogrel-treated acute myocardial infarction (AMI) patients (N = 2,210), including those undergoing percutaneous coronary intervention (PCI) (n = 1,538). ...
Gloria-Bottini Fulvia - - 2011
INTRODUCTION:: Recently, there has been a surge of interest on the possible relationship between p53 polymorphism and coronary atherosclerosis. The authors have investigated the possible association of p53 codon 72 polymorphism with left ventricular ejection fraction (LVEF) in subjects with and without coronary artery disease (CAD). METHODS:: The authors have ...
Moro C - - 2011
Leptin is known to exert cardiodepressive effects and to induce left ventricular (LV) remodelling. Nevertheless, the autocrine and/or paracrine activities of this adipokine in the context of post-infarct dysfunction and remodelling have not yet been elucidated. Therefore, we have investigated the evolution of myocardial leptin expression following myocardial infarction (MI) ...
Wang Xianli - - 2011
HF (heart failure) after MI (myocardial infarction) is a major cause of morbidity and mortality worldwide. Recent studies have shown that hydrogen sulfide (H2S) has cardioprotective effects. Hence, we aimed to elucidate the potential effects of H2S on HF after MI in rats. The HF model after MI was made ...
Winkler Sebastian - - 2011
BACKGROUND: Telemedical approaches targeting cardiac outpatients try to include electrocardiogram (ECG) analysis. Increasing numbers of monitored patients require automated preanalysis of the ECG to prioritize the evaluation for the clinical professional to enable an efficient intervention. METHODS: ECGs were recorded from 60 patients, both with a standard 12-lead ECG and ...
Nakatani Satoshi - - 2011
The left ventricle twists in systole storing potential energy and untwists (recoils) in diastole releasing the energy. Twist aids left ventricular ejection and untwist aids relaxation and ventricular filling. Therefore, rotation and torsion are important in cardiac mechanics. However, the methodology of their investigations is limited to invasive techniques or ...
Arya Arash - - 2011
Role of ECG in Localization of OT-VT. Background: Different kinds of the surface ECG limb electrode positions may affect the limb lead vector and therefore the accuracy of the 12-lead ECG in localization of outflow tract ventricular tachycardia (OTVT). This study was intended to evaluate and compare the accuracy of ...
Sert Ahmet - - 2011
Tricyclic antidepressants (TCAs) account for approximately 3% of all pediatric hospitalizations due to poisoning. TCAs remain a common cause of fatal drug poisoning because of their cardiovascular toxicity as manifested by electrocardiogram (ECG) abnormalities, arrhythmias, and hypotension. We report a 15-year-old girl with junctional escape rhythm and resistant hypotension caused ...
Hu Chuangjia - - 2011
: Cardiac hypertrophy is a risk factor for QT prolongation and cardiac sudden death. In this study, the authors examined the expressional regulation on the rat human ether-a-go-go-related gene (HERG), which encodes a structural subunit of the rapid component of the delayed rectifier potassium current (IKr), during myocardial hypertrophy using ...
Kim Yun Mi - - 2011
Traumatic ventricular septal defect (VSD) resulting from blunt chest injury is a very rare event. The mechanisms of traumatic VSD have been of little concern to dateuntil now, but two dominant theories have been described. In one, the rupture occurs due to acute compression of the heart; in the other, ...
Pan Zhenwei - - 2011
Interstitial fibrosis plays a causal role in the development of heart failure after chronic myocardial infarction (MI), and anti-fibrotic therapy represents a promising strategy to mitigate this pathological process. The purpose of this study was to investigate the effect of long-term administration of scutellarin (Scu) on cardiac interstitial fibrosis of ...
Salvi Vaibhav - - 2011
The investigators analyzed 85133 electrocardiograms (ECGs) recorded in 484 subjects from 5 thorough QT/QTc studies (3 using Holter devices, 2 using 12-lead ECGs) for inadvertent limb lead interchanges using a dedicated quality control process in a central ECG laboratory. Limb lead interchanges were present in 2919 (3.4%) ECGs in 17.9% ...
White Rebekah C - - 2011
A self-touch paradigm is used to create the illusion that one is touching one's own left elbow when one is actually touching the examiner's arm. Our new self-touch illusion is sensitive to the anatomical structure of the body: you can touch your left elbow with your right index finger but ...
Benes Jiri J - - 2011
Chronic volume overload leads to cardiac hypertrophy and later to heart failure (HF), which are both associated with increased risk of cardiac arrhythmias. The goal of this study was to describe changes in myocardial morphology and to characterize arrhythmogenic substrate in rat model of developing HF due to volume overload. ...
Weaver James C - - 2011
Grade 3 ischemia during ST elevation myocardial infarction (STEMI) is defined as ST elevation with distortion of the terminal portion of the QRS on electrocardiogram (ECG). The aim of this study was to evaluate the effect of ischemic grade on cardiac magnetic resonance (CMR) imaging infarct characteristics such as infarct ...
Rüssel Iris K - - 2011
Increased left ventricular (LV) torsion has been observed in patients with manifest familial hypertrophic cardiomyopathy (HCM), and is thought to be caused by subendocardial dysfunction. We hypothesize that increased LV torsion is already present in healthy mutation carriers with normal wall thickness. Seventeen carriers with an LV wall thickness <10 ...
McDonough Kathleen H - - 2010
HIV-1 infection has been associated with cardiomyopathy in a subset of patients. In order to determine whether HIV-1 alters myocardial function or the myocardial response to stress, transgenic mice that express the HIV-1 protein Tat were used. Heart function was assessed using the isolated working heart preparation. Response to infection ...
Galasso Gennaro - - 2010
Several studies have shown that muscle mass loss is an important pathogenic issue in heart failure (HF). Atrogin-1 is a F-box protein selectively expressed in cardiac and skeletal muscle tissue, which plays a pivotal role in muscle wasting regulation. The aim of this study was to investigate the expression of ...
Hwang Hyosook - - 2010
Zoledronate (Zol), one of the class of bisphophonate drugs, is commonly used to treat postmenopausal osteoporosis. Treatment of liposomal bisphosphonates has been shown to worsen myocardial infarct repair in an experimental model. The purpose of this study was to investigate the effect of Zol in the repair of chronically infarcted ...
Doroszko Adrian A Department of Pharmacology, University of Saskatchewan, Saskatoon, Saskatchewan, - - 2010
Hypoxia followed by reoxygenation (H-R) observed during perinatal asphyxia is a serious complication with high mortality and morbidity rates that may cause adverse cardiovascular effects in neonates. Our aim was to determine if oxidative stress related to H-R induces peroxynitrite-dependent modifications of the cardiac contractile protein, myosin regulatory light chain ...
McBrien Angela - - 2011
We present a case of tetralogy of Fallot with progressive restriction of the ventricular septal defect (VSD) by tricuspid valve tissue. The report includes echocardiographic and catheter images of this rare complication of tetralogy of Fallot. Restriction of the VSD in tetralogy of Fallot is associated with increased surgical-related mortality.
Chen Yue-Feng YF Cardiovascular Health Research Center, Sanford Research/University of South Dakota, 1100 East 21st Street, Suite 700, Sioux Falls, SD 57105, - - 2011
Previous studies have shown gender differences in left ventricular remodeling after myocardial infarction. Results are varied, however, and reliable, comprehensive data for changes in cardiac myocyte shape are not available. Young adult female and male Sprague-Dawley rats were used in this study and randomly assigned to the myocardial infarction and ...
Higuchi Takahiro - - 2010
The renin-angiotensin system (RAS) mediates proapoptotic, profibrotic, and proinflammatory processes in maladaptive conditions. Activation after myocardial infarction may initialize and promote cardiac remodeling. Using a novel positron-emitting ligand, we sought to determine the presence and time course of regional myocardial upregulation of the angiotensin II type 1 receptor (AT1R) and ...
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