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14,100 | Heart failure epicardial fat increases atrial arrhythmogenesis. | Obesity is an important risk factor for atrial fibrillation (AF) and heart failure (HF). The effects of epicardial fat on atrial electrophysiology were not clear. This study was to evaluate whether HF may modulate the effects of epicardial fat on atrial electrophysiology.</AbstractText>Conventional microelectrodes reco... |
14,101 | Aggressive cardiovascular phenotype of aneurysms-osteoarthritis syndrome caused by pathogenic SMAD3 variants. | The purpose of this study was describe the cardiovascular phenotype of the aneurysms-osteoarthritis syndrome (AOS) and to provide clinical recommendations.</AbstractText>AOS, caused by pathogenic SMAD3 variants, is a recently described autosomal dominant syndrome characterized by aneurysms and arterial tortuosity in co... |
14,102 | Circulating matrix metalloproteinases in adolescents with hypertrophic cardiomyopathy and ventricular arrhythmia. | Myocardial fibrosis is a hallmark of hypertrophic cardiomyopathy (HCM) and a risk factor for ventricular arrhythmia. Fibrosis can be reflected in circulating matrix remodeling protein concentrations. We explored differences in circulating markers of extracellular matrix turnover between young HCM patients with versus w... |
14,103 | Dynamicity of the J-wave in idiopathic ventricular fibrillation with a special reference to pause-dependent augmentation of the J-wave. | This study evaluated the pause-dependency of the J-wave to characterize this phenomenon in idiopathic ventricular fibrillation (VF).</AbstractText>The J-wave can be found in apparently healthy subjects and in patients at risk for sudden cardiac death, and risk stratification is therefore needed.</AbstractText>Forty pat... |
14,104 | Rocuronium and sugammadex used effectively for electroconvulsive therapy in a patient with Brugada syndrome. | We report the successful anesthetic management of a patient with Brugada syndrome who underwent electroconvulsive therapy to treat bipolar disorder. Suxamethonium and neostigmine were contraindicated to avoid the vagotonic effects that can precipitate ventricular fibrillation during anesthesia in patients with Brugada ... |
14,105 | Two distinct electrocardiographic forms of idiopathic ventricular arrhythmia originating in the vicinity of the His bundle. | The objective is to assess electrocardiographic characteristics predicting the precise location of ventricular arrhythmia (VA) origin within the right ventricle (RV) close to the His bundle (HB) region.</AbstractText>Twenty-five patients (14 men, age 65 ± 14 years) underwent successful catheter ablation of para-Hi... |
14,106 | [Does a woman's heart beat faster?]. | Recent publications have identified a different epidemiological prevalence related to sex in some of the most common supraventricular and ventricular arrhythmias. This fact is attributed to the effect of sex hormones on myocardial cell electrophysiology. Women, in particular, have a higher prevalence than males with re... |
14,107 | Impact of preoperative atrial fibrillation on mortality and cardiovascular outcomes of mechanical mitral valve replacement for rheumatic mitral valve disease. | The prognostic significance of preoperative atrial fibrillation on mitral valve replacement remains unclear. The aim of this study was to explore the effects of the presence of preoperative atrial fibrillation on mortality and cardiovascular outcomes of mitral valve replacement for rheumatic valve disease.</AbstractTex... |
14,108 | Successful surgical removal of an entrapped intravascular ultrasonography catheter in the left circumflex coronary artery. | Entrapment of an intravascular ultrasonography (IVUS) catheter is an infrequent but serious complication associated with percutaneous coronary intervention (PCI). A 67-year-old man who presented with exertional chest pain had an angiographic finding of 99 % stenosis of left circumflex coronary artery. PCI with stent im... |
14,109 | Recrudescent digoxin toxicity treated with plasma exchange: a case report and review of literature. | A 53-year-old woman presented with digitalis toxicity caused by acute overdose that manifested as atrial tachycardia with block, sinus pauses, and competing AV junctional rhythm with atrial fibrillation. Patient admitted to overdosing with digoxin 15-20 h before presentation with intent to commit suicide. Serum digoxin... |
14,110 | Is it worth placing ventricular pacing wires in all patients post-coronary artery bypass grafting? | A best evidence topic in cardiac surgery was written according to a structured protocol. The question addressed was whether ventricular pacing wires should be placed routinely in all patients undergoing coronary artery bypass grafting (CABG) regardless of immediate post-cardiopulmonary bypass (CPB) rhythm status. Using... |
14,111 | [Systolic and diastolic intraventricular asynchrony of the left ventricular myocardium in patients with pacemaker]. | To study intraventricular asynchrony and effects of pacemaker implantation on asynchrony severity in patients with rhythm and conduction disorders.</AbstractText>The study of 46 patients with cardiac arrhythmia (atrial fibrillation, sick sinus syndrome, AB-block of the third degree) included such examinations as echoca... |
14,112 | Improvement of P-wave dispersion is associated with a lower incidence of atrial fibrillation after cardiac resynchronization therapy. | P-wave dispersion (PWD) is a useful predictor of paroxysmal atrial fibrillation (AF). The effect of cardiac resynchronization therapy (CRT) on PWD and the prognostic implications of the improvement in PWD remain undefined. The aim of the study was to explore the clinical significance of the improvement of PWD after CRT... |
14,113 | Enhanced transmural dispersion of repolarization in patients with J wave syndromes. | Recently, great attention has been paid to the risk stratification of asymptomatic patients with an electrocardiographic early repolarization (ER) pattern. We investigated several repolarization parameters including the Tpeak-Tend interval and Tpeak-Tend/QT ratio in healthy individuals and patients with J wave syndrome... |
14,114 | Prevalence of QT interval prolongation in patients admitted to cardiac care units and frequency of subsequent administration of QT interval-prolonging drugs: a prospective, observational study in a large urban academic medical center in the US. | Cardiac arrest due to torsades de pointes (TdP) is a rare but catastrophic event in hospitals. Patients admitted to cardiac units are at higher risk of drug-induced QT interval prolongation and TdP, due to a preponderance of risk factors. Few data exist regarding the prevalence of QT interval prolongation in patients a... |
14,115 | Thrombo-embolism and antithrombotic therapy for heart failure in sinus rhythm. A joint consensus document from the ESC Heart Failure Association and the ESC Working Group on Thrombosis. | Chronic heart failure (HF) with either reduced or preserved ejection fraction is common and remains an extremely serious disorder with a high mortality and morbidity. Many complications related to HF can be related to thrombosis. Epidemiological and pathophysiological data also link HF to an increased risk of thrombosi... |
14,116 | Meta-analysis of cardiovascular outcomes with dronedarone in patients with atrial fibrillation or heart failure.<Pagination><StartPage>607</StartPage><EndPage>613</EndPage><MedlinePgn>607-13</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.amjcard.2012.04.034</ELocationID><Abstract><AbstractTex... | Dronedarone is a benzofuran derivative approved by the Food and Drug Administration to decrease the risk of cardiovascular hospitalization in patients with paroxysmal or persistent atrial fibrillation (AF) and associated cardiovascular risk factors who are in sinus rhythm or will undergo cardioversion. There has been r... |
14,117 | Accidental intrathecal injection of tranexamic Acid. | Tranexamic acid (TXA) is a popular antifibrinolytic drug that is commonly used in patients with bleeding disorder. Major morbidities and mortalities have been reported following inadvertent intrathecal injection of TXA. In this paper, inadvertent intrathecal injection of TXA has resulted from similarities in appearance... |
14,118 | ECG telemonitoring during home-based cardiac rehabilitation in heart failure patients. | We assessed ECGs recorded during home-based telemonitored cardiac rehabilitation (HTCR) in stable patients with heart-failure. The study included 75 patients with heart failure (NYHA II, III), with a mean age of 56 years. They participated in an eight-week programme of home cardiac rehabilitation which was telemonitore... |
14,119 | Tension pneumoperitoneum complicated with tension pneumothorax in a patient with diaphragmatic eventration. | Tension pneumothorax complicating a pneumoperitoneum is a rare but known entity. However, all previously published articles report an air leak through defects in the diaphragm connecting the pneumoperitoneum and the pneumothorax. Here, the case of a 36-year-old man in whom the pneumoperitoneum acted like a tension pneu... |
14,120 | Causes of in-hospital cardiac arrest and influence on outcome. | To evaluate the relationship between cause and outcome of in-hospital cardiac arrest.</AbstractText>Retrospective analysis of resuscitation data, causes of cardiac arrest and outcome with a follow-up to 6 months of a cardiac arrest registry in an emergency department of a tertiary care hospital, covering a 17.5-year pe... |
14,121 | [Computer modeling of ventricular fibrillation]. | Electrical activity of a heart in ventricular fibrillation was modeled as a sum of independent pulse streams with various amplitude-frequency and phase characteristics. Results of computer experiments were compared with those of real physiological experiments on rabbits. Identification of the model was carried out by m... |
14,122 | Ventricular muscarinic receptor remodeling in patients with and without primary ventricular fibrillation. An imaging study. | Vagal innervation modulates the electrical stability of the left ventricle (LV) during ischemia. Thus, abnormal parasympathetic activity in myocardial infarction (MI) patients with primary ventricular fibrillation (FV) can account for their arrhythmic disorders. We evaluated LV muscarinic receptor density (B (max)) aft... |
14,123 | Extracorporeal membrane oxygenation-assisted primary percutaneous coronary intervention may improve survival of patients with acute myocardial infarction complicated by profound cardiogenic shock. | The aim of this study was to evaluate the impact of extracorporeal membrane oxygenation (ECMO) assistance on the clinical outcome of patients with acute myocardial infarction (AMI) that is complicated by profound cardiogenic shock (CS) who received primary percutaneous coronary intervention (PCI).</AbstractText>We coll... |
14,124 | Recurrence of ventricular fibrillation in a patient with non-type 1 Brugada electrocardiographic morphology. | A healthy 25-year-old man suffered from loss of consciousness due to ventricular fibrillation (VF). Emergency services required multiple cardioversion to restore sinus rhythm. Repeated electrocardiographic (ECG) recordings after admission showed non-type 1 Brugada ST-segment elevation in V1 and V2. Intravenous pilsicai... |
14,125 | Sudden death of cardiac origin and psychotropic drugs. | Mortality rate is high in psychiatric patients versus general population. An important cause of this increased mortality is sudden cardiac death (SCD) as a major side-effect of psychotropic drugs. These SCDs generally result from arrhythmias occurring when the posology is high and may attain a toxic threshold but also ... |
14,126 | Adverse effects of permanent atrial fibrillation on heart failure in patients with preserved left ventricular function and chronic right apical pacing for complete heart block. | The impact of atrial fibrillation (AF) on heart failure (HF) was evaluated in patients with preserved left ventricular (LV) function and long-term right ventricular (RV) pacing for complete heart block.</AbstractText>Clinical, echocardiographic, and laboratory parameters of HF were assessed in 35 patients with establis... |
14,127 | Novel computed tomography indexes of left atrial appendage stasis. | Contrast enhanced multi-detector computed tomography (MDCT) may detect left atrial appendage (LAA) thrombus; however, its ability to qualify LAA stasis has not been studied. We sought to identify MDCT derived LAA radiographic parameters which could qualify LAA stasis as defined by established transesophageal echocardio... |
14,128 | Xanthine oxidase inhibition prevents atrial fibrillation in a canine model of atrial pacing-induced left ventricular dysfunction. | Oxidative stress could be a possible mechanism and a therapeutic target of atrial fibrillation (AF). Xanthine oxidase (XO) inhibition reduces oxidative stress, but the effects of XO inhibitor on AF have not been evaluated. Hence, we assessed the effects of XO inhibitor, allopurinol, on progression of atrial vulnerabili... |
14,129 | Low rate of atrial fibrillation recurrence verified by implantable loop recorder monitoring following a convergent epicardial and endocardial ablation of atrial fibrillation. | Evaluate long-term outcomes in patients undergoing the Convergent procedure (CP) for the treatment of atrial fibrillation (AF).</AbstractText>The CP provides a multidisciplinary approach, combining endoscopic creation of epicardial linear lesions followed by endocardial mapping and ablation and targets persistent and l... |
14,130 | The prevalence of early repolarization in patients with noncompaction cardiomyopathy presenting with malignant ventricular arrhythmias. | Early Repolarization in Noncompaction Cardiomyopathy. </AbstractText>Early repolarization (ER) is associated with malignant ventricular arrhythmias, including ventricular fibrillation (VF) and sudden cardiac death (SCD). One possible mechanism is increased trabeculation with deep intramyocardial invagination, ca... |
14,131 | Defects in cytoskeletal signaling pathways, arrhythmia, and sudden cardiac death. | Ankyrin polypeptides are cellular adapter proteins that tether integral membrane proteins to the cytoskeleton in a host of human organs. Initially identified as integral components of the cytoskeleton in erythrocytes, a recent explosion in ankyrin research has demonstrated that these proteins play prominent roles in cy... |
14,132 | Neural control of ventricular rate in ambulatory dogs with pacing-induced sustained atrial fibrillation. | We hypothesize that inferior vena cava-inferior atrial ganglionated plexus nerve activity (IVC-IAGPNA) is responsible for ventricular rate (VR) control during atrial fibrillation (AF) in ambulatory dogs.</AbstractText>We recorded bilateral cervical vagal nerve activity (VNA) and IVC-IAGPNA during baseline sinus rhythm ... |
14,133 | [Sudden cardiac death of rhythmic origin in athletes: literature review]. | The sudden death in athletes is, in the vast majority of cases, related to ventricular fibrillation, often in a subject with unknown cardiovascular abnormality; this dramatic event has a significant impact on society and the medical profession. We conducted through a literature review an analysis of data on sudden card... |
14,134 | QRS prolongation induced by cardiac resynchronization therapy correlates with deterioration in left ventricular function. | The benefits of cardiac resynchronization in inducing reverse ventricular remodeling in patients with left ventricular (LV) systolic dysfunction have been well established. Still, up to 30% of the patients fail to derive significant improvement from this therapy. A subset of "nonresponders" experience deterioration in ... |
14,135 | Transthoracic Echocardiography with Doppler Tissue Imaging predicts weaning failure from mechanical ventilation: evolution of the left ventricle relaxation rate during a spontaneous breathing trial is the key factor in weaning outcome. | There is growing evidence to suggest that transthoracic echocardiography (TTE) should be used to identify the cardiac origin of respiratory weaning failure.</AbstractText>first, to evaluate the ability of transthoracic echocardiography, with mitral Doppler inflow E velocity to annular tissue Doppler Ea wave velocity (E... |
14,136 | A low tilt waveform in the transthoracic defibrillation of ventricular arrhythmias during cardiac arrest. | Most commercially available defibrillators utilise a high tilt waveform. Work in atrial fibrillation has shown improved defibrillation success using low tilt waveforms. We hypothesise that a novel low tilt biphasic waveform will be non-inferior to a standard tilt waveform whilst delivering lower energy for the defibril... |
14,137 | Long-term results of the Maze procedure in patients with mechanical valve. | The advantage of the Maze procedure concomitant with the mechanical valve implantation is unclear. This study evaluated the long-term results of mechanical valve implantation either alone or concomitant with the Maze procedure.</AbstractText>Between 1990 and 2005, 208 patients underwent mitral valve replacement with a ... |
14,138 | Catheter ablation for atrial fibrillation. | Atrial fibrillation (AF) is the most common clinically important cardiac arrhythmia. It is an important cause of stroke, contributes to the burden of heart failure and is a major contributor to health expenditure. Percutaneous catheter ablation is superior to medical therapy in reducing AF recurrences. It has an import... |
14,139 | Association of heart rate and outcomes in a broad spectrum of patients with chronic heart failure: results from the CHARM (Candesartan in Heart Failure: Assessment of Reduction in Mortality and morbidity) program. | The aim of this study was to explore the relationship between baseline resting heart rate and outcomes in patients with chronic heart failure (HF) according to baseline left ventricular ejection fraction (LVEF) and cardiac rhythm.</AbstractText>Elevated resting heart rate is associated with worse outcomes in patients w... |
14,140 | Ventricular arrhythmias in the absence of structural heart disease. | Ventricular arrhythmia (VA) in structurally normal hearts can be broadly considered under non-life-threatening monomorphic and life-threatening polymorphic rhythms. Monomorphic VA is classified on the basis of site of origin in the heart, and the most common areas are the ventricular outflow tracts and left ventricular... |
14,141 | Use of rate control medication before cardioversion of recent-onset atrial fibrillation or flutter in the emergency department is associated with reduced success rates. | It is believed that when patients present to the emergency department (ED) with recent-onset atrial fibrillation or flutter (RAFF), controlling the ventricular rate before cardioversion improves the success rate. We evaluated the influence of rate control medication and other variables on the success of cardioversion.<... |
14,142 | Correlation between left atrial volume index and pulmonary artery pressure in patients with chronic severe mitral regurgitation. | Left atrial dilatation is a response to volume overload in chronic mitral regurgitation (MR). Left atrium volume index (LAVI) was associated with mortality, heart failure and atrial fibrillation in patients with MR. The authors do not know the association between LAVI and pulmonary artery pressure in patients with chro... |
14,143 | Effect of spironolactone on ventricular arrhythmias in patients with left ventricular systolic dysfunction and implantable cardioverter defibrillators. | <AbstractText Label="AIMS/OBJECTIVES" NlmCategory="OBJECTIVE">Patients with implantable cardioverter defibrillators (ICD) often receive an adjunctive anti-arrhythmic therapy. We propose that an addition of spironolactone will reduce the number of clinically significant ventricular arrhythmias and ICD-related therapies.... |
14,144 | Importance of the underlying substrate in determining thrombus location in atrial fibrillation: implications for left atrial appendage closure. | The left atrial appendage (LAA) has been suggested to be the dominant location of thrombus in atrial fibrillation (AF) and has led to the development of LAA occlusion as a therapeutic modality to reduce stroke risk. However, the patient populations that would benefit most from this therapy are not well defined.</Abstra... |
14,145 | Upregulation of CaMKIIδ during ischaemia-reperfusion is associated with reperfusion-induced arrhythmias and mechanical dysfunction of the rat heart: involvement of sarcolemmal Ca2+-cycling proteins. | Although Ca(2+)/calmodulin-dependent protein kinase II delta (CaMKIIδ) has been implicated in development of different phenotypes of myocardial ischaemia-reperfusion injury, its involvement in arrhythmogenesis and cardiac stunning is not sufficiently elucidated. Moreover, the mechanisms by which CaMKIIδ med... |
14,146 | [The analysis of ECG of different state based on approximate entropy]. | In this study, ECG signals of normal sinus rhythm (NSR), ventricular tachycardia (VT) and ventricular fibrillation (VF) were taken out to extract the RR interval series. Approximate entropy (ApEn) values of the RR interval series were calculated and compared among the three groups by ANOVA methods. It was found that th... |
14,147 | [The results of off-pump coronary artery bypass grafting for patients with malignant disease]. | We performed off-pump coronary artery bypass grafting (OPCAB) operations in 95 patients between April 2007 and September 2010, 6 of whom had malignant disease. The malignancies were multiple myeloma (1 patient), malignant lymphoma (1 patient), lung cancer (1 patient), breast cancer (1 patient), stomach cancer (1 patien... |
14,148 | [Forensic medical diagnostics of chronic narcotic intoxication based on the morphological findings]. | The objective of the present work was to develop the forensic medical criteria for chronic narcotic intoxication based on the results of morphological studies. The internal organs from 179 cadavers were available for the examination following death from acute poisoning with narcotic substances or as a result of chronic... |
14,149 | [Assessment of risk factors of atrial fibrillation in patients with metabolic syndrome]. | The aim of the work was to identify risk factors of atrial fibrillation (AF) in 151 patients with metabolic syndrome (MS, IDF 2005); 88 of them presented with the recurrent form of AE 63 had no arrhythmia. Practically all patients suffered from arterial hypertension. The groups were comparable in terms of age, concomit... |
14,150 | Mild functional ischemic mitral regurgitation following acute coronary syndrome: a retrospective study. | Ischemic mitral regurgitation is a frequent complication of acute coronary syndrome. It primarily occurs in patients with a prior myocardial infarction but also may be seen with acute ischemia, a setting in which the MR typically resolves after the ischemia resolves. The vast majority of patients have "functional" isch... |
14,151 | Hemodynamic findings in severe tricuspid regurgitation. | Tricuspid regurgitation (TR) most commonly occurs in response to right ventricular (RV) dilation with structural abnormalities in the tricuspid valve being rarer. In addition to RV size and valvular integrity, the amount of TR is influenced by RV preload and afterload, the respiratory cycle, left heart function and atr... |
14,152 | Successful percutaneous coronary intervention in a case of acute aortic dissection complicated with malperfusion of the left main coronary artery after replacement of the ascending aorta. | A 75-year-old female was admitted to our hospital with sudden back pain and right leg ischemia. Computed tomography showed acute type A aortic dissection with the occlusion of the right common iliac artery. The patient was treated with ascending aorta replacement and femoro-femoral bypass. Three hours after the operati... |
14,153 | Marine omega-3 fatty acids and coronary heart disease. | To provide an overview of the key earlier intervention studies with marine omega-3 fatty acids and to review and comment on recent studies reporting on mortality outcomes and on selected underlying mechanisms of action.</AbstractText>Studies relating marine omega-3 fatty acid status to current or future outcomes contin... |
14,154 | A case of sudden infant death due to a primary cardiac sarcoma. | The case reported herein concerns the unexpected death of a 3-month-old female newborn who suddenly collapsed in her mother's arms and was dead on arrival at the hospital. The clinical histories of the baby and her parents were negative for symptoms or signs of illness, even those of cardiovascular origin. Furthermore,... |
14,155 | Safety and efficacy of intracoronary adenosine administration in patients with acute myocardial infarction undergoing primary percutaneous coronary intervention: a meta-analysis of randomized controlled trials. | Studies evaluating intracoronary administration of adenosine for prevention of microvascular dysfunction and ischemic-reperfusion injury in patients with acute myocardial infarction (AMI) undergoing primary percutaneous coronary intervention (PCI) have yielded mixed results. Therefore, we performed a meta-analysis of t... |
14,156 | A KCNJ8 mutation associated with early repolarization and atrial fibrillation. | The Kir 6.1 K(atp) channel is believed to play an important role in ventricular repolarization as determined from both functional and genetic studies of the potassium inwardly-rectifying channel, subfamily J, member 8 (KCNJ8)-S422L missense mutation in patients with J-wave syndromes. Although Kir6.1 is also present in ... |
14,157 | Correlation between coronary perfusion pressure and quantitative ECG waveform measures during resuscitation of prolonged ventricular fibrillation. | The ventricular fibrillation (VF) waveform is dynamic and predicts defibrillation success. Quantitative waveform measures (QWMs) quantify these changes. Coronary perfusion pressure (CPP), a surrogate for myocardial perfusion, also predicts defibrillation success. The relationship between QWM and CPP has been preliminar... |
14,158 | Morphological abnormalities in baseline ECGs in healthy normal volunteers participating in phase I studies. | <AbstractText Label="BACKGROUND & OBJECTIVES" NlmCategory="OBJECTIVE">Morphological abnormalities in 12-lead electrocardiograms (ECGs) are seen in subgroups of healthy individuals like athletes and air-force personnel. As these populations may not truly represent healthy individuals, we assessed morphological abnor... |
14,159 | Arrhythmia discrimination using hemoglobin spectroscopy in humans. | Inappropriate therapies are frequently delivered by implantable cardioverter-defibrillators (ICDs). We have investigated muscle perfusion as a means of augmenting arrhythmia discrimination by using implanted near-infrared spectroscopy.</AbstractText>To evaluate hemodynamic stability by monitoring muscle perfusion from ... |
14,160 | Engaging a whole community in resuscitation. | Survival after out-of-hospital cardiac arrest (OHCA) is influenced by each link in the chain of survival. On the Danish island of Bornholm (population 42,000, area 588 km2) none survived an OHCA in 2001-2003. Therefore, we designed a multifaceted community-based approach aiming at strengthening each link in the chain o... |
14,161 | Spatiotemporally controlled cardiac conduction block using high-frequency electrical stimulation. | Methods for the electrical inhibition of cardiac excitation have long been sought to control excitability and conduction, but to date remain largely impractical. High-amplitude alternating current (AC) stimulation has been known to extend cardiac action potentials (APs), and has been recently exploited to terminate ree... |
14,162 | Spinal cord stimulation protects against atrial fibrillation induced by tachypacing. | Spinal cord stimulation (SCS) has been shown to modulate atrial electrophysiology and confer protection against ischemia and ventricular arrhythmias in animal models.</AbstractText>To determine whether SCS reduces the susceptibility to atrial fibrillation (AF) induced by tachypacing (TP).</AbstractText>In 21 canines, u... |
14,163 | Subcutaneous implantable cardioverter defibrillator in a patient with pectus excavatum. | Sudden cardiac arrest in young healthy adults has concerned the medical and social communities due to its fatal effect. Implantable cardioverter defibrillator (ICD) has been demonstrated to be an effective measure for prevention of sudden death in patients at risk of ventricular arrhythmia. Subcutaneous ICD has been de... |
14,164 | [Basic cardiopulmonary resuscitation: knowledge, practical skills and effectiveness of maneuvers of general physicians]. | General physicians should be adequately trained to deliver effective resuscitation during ventricular fibrillation (VF).</AbstractText>To assess the degree of knowledge, skills and practical effectiveness in cardiopulmonary resuscitation (CPR) of Chilean general physicians.</AbstractText>Forty eight general physicians ... |
14,165 | Serum amyloid a and C-reactive protein independently predict the recurrences of atrial fibrillation after cardioversion in patients with preserved left ventricular function. | Subclinical inflammation and atrial stretch have been recognized as important contributors to atrial fibrillation (AF) onset and perpetuation. The aim of the study was to compare the predictive role of serum inflammatory markers (serum amyloid A [SAA], and C-reactive protein [CRP]) and N-terminal pro brain natriuretic ... |
14,166 | Direct protective effects of dexmedetomidine against myocardial ischemia-reperfusion injury in anesthetized pigs. | Systemic administration of α2-adrenergic agonists has been shown to protect ischemic myocardium, but the direct effects on ischemia-reperfused myocardium have not yet been clarified. This study was carried out to determine the effects of intracoronary dexmedetomidine (DEX) on the myocardial ischemia-reperfusion i... |
14,167 | Use of implantable cardioverter defibrillators in patients with left ventricular assist devices. | Patients with left ventricular assist devices (LVADs) are at high risk of sustained ventricular arrhythmias, but these may be remarkably well tolerated and the association with sudden death is unclear. Many patients who receive an LVAD already have an implantable cardioverter defibrillator (ICD). While it is standard p... |
14,168 | Sudden cardiac arrest and death following application of shocks from a TASER electronic control device. | The safety of electronic control devices (ECDs) has been questioned. The goal of this study was to analyze in detail cases of loss of consciousness associated with ECD deployment.</AbstractText>Eight cases of TASER X26 ECD-induced loss of consciousness were studied. In each instance, when available, police, medical, an... |
14,169 | A multicentre, randomized study of telmisartan versus carvedilol for prevention of atrial fibrillation recurrence in hypertensive patients. | Atrial remodelling, leading to atrial fibrillation (AF), is mediated by the renin-angiotensin-aldosterone system.</AbstractText>Mild hypertensive outpatients (systolic/diastolic blood pressure 140-159/90-99 mmHg) in sinus rhythm who had experienced ≥ 1 electrocardiogram (ECG)-documented AF episode in the previou... |
14,170 | Effectiveness of Public Access Defibrillation with AEDs for Out-of-Hospital Cardiac Arrests in Japan. | In Japan, about 60,000 out-of-hospital cardiac arrests of cardiac etiology occur annually. Early initiation of cardiopulmonary resuscitation (CPR) and early defibrillation with public access automated external defibrillators (AEDs) by bystanders is the key to increasing survival after an out-of-hospital cardiac arrest ... |
14,171 | Comparison of cardiac stem cells and mesenchymal stem cells transplantation on the cardiac electrophysiology in rats with myocardial infarction. | Whether transplanted cardiac stem cells (CSCs) and mesenchymal stem cells (MSCs) improved ventricular fibrillation threshold (VFT) similarly is still unclear. We sought to compare the effects of the CSC and MSC transplantation on the electrophysiological characteristics and VFT in rats with myocardial infarction (MI).<... |
14,172 | [Video-assisted thoracoscopic removal of esophageal leiomyomas with intraoperative tumor location by endoscopy]. | To summarize our experience with video-assisted thoracoscopic (VATS) removal of esophageal leiomyoma located with endoscopy during operation.</AbstractText>Between January 2006 and December 2010, 55 patients with esophageal leiomyoma underwent VATS enucleation. The surgical procedure was similar to that of open thoraco... |
14,173 | Acute effects of right ventricular apical pacing on left atrial remodeling and function. | The acute effects of right ventricular apical (RVA) pacing on left atrial (LA) function in patients with normal ejection fraction are not clear.</AbstractText>A total of 94 patients (age 68.1 ± 11.1 years, 26 men) with implanted RVA-based dual-chamber pacemakers were recruited into this study. Patients who were pa... |
14,174 | [Coronary ventricular fistula as a late complication of permanent pacing]. | A coronary angiography performed for the occurrence of atypical chest pain allowed us to discover a coronary-right ventricular fistula as a rare complication of myocardial penetration by a tined ventricular catheter implanted some years earlier. |
14,175 | [Cardiac resynchronization therapy: mortality, rehospitalization, and procedure-related complications. A three-year single-center observational study within the Italian Health System]. | The aim of this study was to evaluate whether the benefit of cardiac resynchronization therapy with an implantable defibrillator (CRT-D) may differ among classes of indications to device therapy.</AbstractText>All-cause mortality, first hospitalization for non-fatal heart failure, stable improvement of NYHA functional ... |
14,176 | Protective role of simvastatin on isolated rabbit atrioventricular node during experimental atrial fibrillation model: role in rate control of ventricular beats. | The purpose of the present study was to determine (1) whether simvastatin (SV) modifies the rate-dependent conduction time and refractoriness of the atrioventricular (AV) node and (2) how it can change the protective mechanism of the AV node during atrial fibrillation (AF). Predefined stimulation protocols were applied... |
14,177 | Comparison of standard versus orthogonal ECG leads for T-wave alternans identification. | T-wave alternans (TWA), an electrophysiologic phenomenon associated with ventricular arrhythmias, is usually detected from selected ECG leads. TWA amplitude measured in the 12-standard and the 3-orthogonal (vectorcardiographic) leads were compared here to identify which lead system yields a more adequate detection of T... |
14,178 | Spontaneous termination of ventricular fibrillation in a patient with congenital coronary anomaly. | Sudden death is common in patients with congenital coronary artery anomalies mainly when the left main coronary artery originates from the right coronary sinus. Ventricular fibrillation in these patients is irreversible unless defibrillation can be rapidly performed. We describe a 57-year-old male with an anomalous ori... |
14,179 | Early repolarization is an independent predictor of occurrences of ventricular fibrillation in the very early phase of acute myocardial infarction. | Recent evidence has linked early repolarization (ER) to idiopathic ventricular fibrillation (VF) in patients without structural heart disease. However, no studies have clarified whether or not there is an association between ER and the VF occurrences after the onset of an acute myocardial infarction (AMI).</AbstractTex... |
14,180 | Mild hypothermia attenuates mitochondrial oxidative stress by protecting respiratory enzymes and upregulating MnSOD in a pig model of cardiac arrest. | Mild hypothermia is the only effective treatment confirmed clinically to improve neurological outcomes for comatose patients with cardiac arrest. However, the underlying mechanism is not fully elucidated. In this study, our aim was to determine the effect of mild hypothermia on mitochondrial oxidative stress in the cer... |
14,181 | Effect of female sex on cardiac arrhythmias. | We performed a systematic literature review to examine the effect of female sex on cardiac electrophysiology and arrhythmias. Women have faster resting heart rates yet longer QTc intervals. Women also have shorter PR and QRS intervals; these are presumed to be due to the small heart size of women and hormonal effects o... |
14,182 | Current and emerging indications for implantable cardiac monitors. | Implantable cardiac monitors (ICMs) continuously monitor the patient's electrocardiogram and perform real-time analysis of the heart rhythm, for up to 36 months. The current clinical use of ICMs involves the evaluation of transitory symptoms of possible arrhythmic origin, such as unexplained syncope and palpitations. M... |
14,183 | Cortical infarction of the right parietal lobe and neurogenic heart disease: A report of three cases. | Three male patients were diagnosed with new cortical infarctions of the right parietal lobe on the basis of head magnetic resonance imaging; high-intensity signals indicating lesions in the right parietal lobe were noted on diffusion-weighted images at admission. Two of them presented with left hand weakness, and one e... |
14,184 | Population-attributable risks for ischemic stroke in a community in South Brazil: a case-control study. | Risk factors for ischemic stroke are mostly known, but it is still unclear in most countries, what are their combined population-attributable risk percent (PAR%). In a case-control study the individual odds ratios (ORs) and the individual and combined PAR%, including risk factors not addressed in previous studies were ... |
14,185 | Omega-3 Fatty acids: anti-arrhythmic, pro-arrhythmic, or both? | This review focuses on developments after 2008, when the topic was last reviewed by the author. Pertinent publications were found by medline searches and in the author's personal data base. Prevention of atrial fibrillation (AF) was investigated in a number of trials, sparked by one positive report on the effects of ei... |
14,186 | Mexiletine differentially restores the trafficking defects caused by two brugada syndrome mutations. | The human cardiac sodium channel Na(v)1.5 encoded by the SCN5A gene plays a critical role in cardiac excitability and the propagation of action potentials. Na(v)1.5 dysfunctions due to mutations cause cardiac diseases such as the LQT3 form of long QT syndrome, conduction disorders, and Brugada syndrome (BrS). They have... |
14,187 | Case report: an unusual heart rhythm associated with organophosphate poisoning. | Organophosphate pesticides have emerged as a common cause of poisoning, particularly in developing countries. The most common electrocardiographic abnormalities observed in organophosphate poisoning are sinus tachycardia, QT interval prolongation, and, very rarely, ventricular arrhythmias. We report a case of organopho... |
14,188 | [Early repolarisation syndrome and sudden cardiac death A.D. 2012. Early repolarisation or delayed depolarisation syndrome?]. | Early repolarisation syndrome (ERS) appears in 2-7% of general population, mainly seen in young men, athletes and blacks. Recent publications change the benign character of ERS. It was suggested that ERS can be associated with sudden cardiac death, idiopathic ventricular fibrillation. This article described history and... |
14,189 | Selective inhibitors of cardiac ADPR cyclase as novel anti-arrhythmic compounds. | ADP-ribosyl cyclases (ADPRCs) catalyse the conversion of nicotinamide adenine dinucleotide to cyclic adenosine diphosphoribose (cADPR) which is a second messenger involved in Ca(2+) mobilisation from intracellular stores. Via its interaction with the ryanodine receptor Ca(2+) channel in the heart, cADPR may exert arrhy... |
14,190 | [Prehospital cardiac arrest. Therapeutic hypothermia in adults]. | Therapeutic hypothermia is one of the few advances in recent years that has improved survival and neurological outcome of survivors of cardiac arrest. Therapeutic hypothermia is part of current guidelines and, therefore, should be part of the routine procedure in postresuscitation care of patients still comatose after ... |
14,191 | Atrial fibrillation: the rate versus rhythm management controversy. | The fundamental management strategy for atrial fibrillation (AF) is still debated. There is no doubt that those patients at risk of thromboembolic events should be offered anticoagulant therapy. However, it is uncertain whether rhythm control (restoration and maintenance of sinus rhythm) or rate control (adjustment to ... |
14,192 | Combination of opium smoking and hypercholesterolemia augments susceptibility for lethal cardiac arrhythmia and atherogenesis in rabbit. | Opium consumption is increasing in some eastern societies, where it is grown. We investigated the effect of opium smoking on plasma atherogenic index and incidence of lethal cardiac arrhythmia, i.e. ventricular tachycardia (VT) and ventricular fibrillation (VF) in rabbits. Animals were divided into two-, normo- and hyp... |
14,193 | Atrioventricular node functional remodeling induced by atrial fibrillation. | The atrioventricular node (AVN) plays a vital role in determining the ventricular rate during atrial fibrillation (AF). AF results in profound electrophysiological and structural remodeling in the atria as well as the sinus node. However, it is unknown whether AVN undergoes remodeling during AF.</AbstractText>To determ... |
14,194 | Managing atrial fibrillation in the CRT patient: controversy or consensus? | The cumulative incidence of new onset atrial fibrillation (AF) in patients undergoing cardiac resynchronization therapy (CRT) is substantial, exceeding 25% in multiple recent studies. Although AF patients undergoing CRT show improved echocardiographic parameters, functional status, and quality of life in, they benefit ... |
14,195 | Ischemic postconditioning at the initiation of cardiopulmonary resuscitation facilitates functional cardiac and cerebral recovery after prolonged untreated ventricular fibrillation. | 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-s pauses during the first 3 min of standard CPR would improve post resuscitation cardiac an... |
14,196 | Transapical aortic valve implantation in Rouen: four years' experience with the Edwards transcatheter prosthesis. | The first French transapical transcatheter aortic valve implantation (TAVI) was performed in July 2007 in our department.</AbstractText>To report 4-year outcomes of transapical implantation with the Edwards transcatheter bioprosthesis.</AbstractText>We prospectively evaluated consecutive patients who underwent transapi... |
14,197 | Cryoablation during left ventricular assist device implantation reduces postoperative ventricular tachyarrhythmias. | The number of patients undergoing implantation of a HeartMate II left ventricular assist device (LVAD; Thoratec Corporation, Pleasanton, Calif) is rising. Ventricular tachyarrhythmia (VA) after placement of the device is common, especially among patients with preoperative VA. We sought to determine whether intraoperati... |
14,198 | Effect of lipid lowering on new-onset atrial fibrillation in patients with asymptomatic aortic stenosis: the Simvastatin and Ezetimibe in Aortic Stenosis (SEAS) study. | Lipid-lowering drugs, particularly statins, have anti-inflammatory and antioxidant properties that may prevent atrial fibrillation (AF). This effect has not been investigated on new-onset AF in asymptomatic patients with aortic stenosis (AS).</AbstractText>Asymptomatic patients with mild-to-moderate AS (n = 1,421) were... |
14,199 | Long QT syndrome and dilated cardiomyopathy with SCN5A p.R1193Q polymorphism: cardioverter-defibrillator implantation at 27 months. | Cardiac sodium channel dysfunction associated with the SCN5A gene presents with mixed phenotypes, including long QT syndrome type 3, sinus node dysfunction, and dilated cardiomyopathy (DCM). We report a Korean case of an overlap syndrome of cardiac sodium channelopathy with SCN5A p.R1193Q polymorphism, treated by the p... |
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