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9,900 | Amitriptyline poisoning in a 2-year old. | We describe a case of a 2-year-old boy who ingested 35 mg.kg(-1) of amitriptyline. He developed central nervous system toxicity, as demonstrated by coma and seizures and cardiac toxicity (cardiac arrest) within 1 h of ingestion. The cardiac toxicity was refractory to standard therapy. His cardiac rhythm alternated betw... |
9,901 | Clinical course of acute myocardial infarction in the hypertensive patient in Eastern Spain: the PRIMVAC registry. | The study's objective was to analyze the acute complications and prognosis of acute myocardial infarction (AMI) in hypertensive patients in Spain.</AbstractText>Complications and early mortality were recorded among the patients with AMI admitted to the coronary care units of the 17 hospitals in the Valencia Community (... |
9,902 | Monomorphic ventricular tachycardia due to Brugada syndrome successfully treated by hydroquinidine therapy in a 3-year-old child. | Mutations in the SCN5A gene can cause Brugada syndrome, a genetically inherited form of idiopathic ventricular fibrillation. We describe the case of a 3-year-old child with a structurally normal heart presenting with monomorphic ventricular tachycardia. Her electrocardiogram suggested a Brugada syndrome and the diagnos... |
9,903 | Myocardial revascularization in patients with low ejection fraction < or =35%: effect of pump technique on early morbidity and mortality. | Left ventricular dysfunction is an important predictor of in-hospital mortality. Surgical risk among these patients remains high. The present study is conducted to evaluate the difference in early morbidity and mortality among patients with compromised left ventricular function (LVF) after myocardial revascularization ... |
9,904 | Intracellular sodium increase and susceptibility to ischaemia in hearts from type 2 diabetic db/db mice. | <AbstractText Label="AIMS/HYPOTHESIS" NlmCategory="OBJECTIVE">An important determinant of sensitivity to ischaemia is altered ion homeostasis, especially disturbances in intracellular Na(+) (Na(i)(+)) handling. As no study has so far investigated this in type 2 diabetes, we examined susceptibility to ischaemia-reperfus... |
9,905 | Association of nocturnal arrhythmias with sleep-disordered breathing: The Sleep Heart Health Study. | Sleep-disordered breathing recurrent intermittent hypoxia and sympathetic nervous system activity surges provide the milieu for cardiac arrhythmia development.</AbstractText>We postulate that the prevalence of nocturnal cardiac arrhythmias is higher among subjects with than without sleep-disordered breathing.</Abstract... |
9,906 | Hemodynamic significance of mitral stenosis: use of a simple, novel index by 2-dimensional echocardiography. | We sought to assess the hemodynamic significance of mitral stenosis (MS) using a new index.</AbstractText>We studied 88 patients with MS. Maximum separation of mitral leaflet tips in diastole in parasternal long-axis and apical 4-chamber views was measured. These two parameters were averaged to yield the mitral leaflet... |
9,907 | Clinical predictors and prognostic significance of electrical storm in patients with implantable cardioverter defibrillators. | Insufficient data exists regarding predictors of electrical storms (ES) and clinical outcome in patients treated with an implantable cardioverter defibrillator (ICD). The purpose of this study was to delineate a subgroup of patients likely to experience ES and to determine the impact of ES on mortality in ICD recipient... |
9,908 | Vasopressin improves outcome in out-of-hospital cardiopulmonary resuscitation of ventricular fibrillation and pulseless ventricular tachycardia: a observational cohort study. | An increasing body of evidence from laboratory and clinical studies suggests that vasopressin may represent a promising alternative vasopressor for use during cardiac arrest and resuscitation. Current guidelines for cardiopulmonary resuscitation recommend the use of adrenaline (epinephrine), with vasopressin considered... |
9,909 | The changing incidence of ventricular fibrillation in Milwaukee, Wisconsin (1992-2002). | To investigate the changes in annual incidence and survival of out-of-hospital cardiac-etiology arrests of different initial rhythms, particularly ventricular fibrillation (VF) and ventricular tachycardia (VT), among adults (> 21 years old) in Milwaukee County between 1992 and 2002 and establish correlations with pa... |
9,910 | Actions of flecainide on susceptibility to phase-2 ventricular arrhythmias during infarct evolution in rat isolated perfused hearts. | The mechanism of flecainide-induced unexpected death remains uncertain. Phase-2 ventricular arrhythmias occur during infarct evolution. We examined whether flecainide (0.74 and 1.48 microM, representing the peak unbound plasma and total blood concentrations, respectively, at 'therapeutic' dosage) has proarrhythmic acti... |
9,911 | The prevalence and prognosis of a Brugada-type electrocardiogram in a population of middle-aged Japanese-American men with follow-up of three decades. | The Brugada syndrome is an inherited arrhythmogenic and nonstructural heart disease associated with an increased risk of sudden cardiac death from ventricular fibrillation. There are conflicting data about its prevalence and prognosis. Particularly, population-based studies are lacking in the United States and other co... |
9,912 | Common sodium channel promoter haplotype in asian subjects underlies variability in cardiac conduction. | Reduced cardiac sodium current slows conduction and renders the heart susceptible to ventricular fibrillation. Loss of function mutations in SCN5A, encoding the cardiac sodium channel, are one cause of the Brugada syndrome, associated with slow conduction and a high incidence of ventricular fibrillation, especially in ... |
9,913 | T-wave alternans and the susceptibility to ventricular arrhythmias. | T-wave alternans (TWA) reflects beat-to-beat fluctuations in the electrocardiographic T-wave, and is associated with dispersion of repolarization and the mechanisms for sudden cardiac arrest (SCA). This review examines the bench-to-bedside literature that, over decades, has linked alternans of repolarization in cellula... |
9,914 | Sudden death is less common than might be expected in underprivileged ethnic minorities at high cardiovascular risk. | Sudden cardiac death can be the presenting feature of coronary disease. Limited epidemiological studies from the US suggest an increased prevalence of sudden death in the African-American community. There are no reports in UK minority communities. We present sudden death data from an area with a high density of underpr... |
9,915 | Does atrial fibrillation in very elderly patients with chronic systolic heart failure limit the use of carvedilol? | It is well known that beta-blockers are useful in patients with chronic heart failure (CHF). These favourable effects have recently been observed even in elderly CHF patients. Objectives of the present study were to evaluate the feasibility, tolerability and safety of carvedilol therapy in a cohort of patients > 70 ... |
9,916 | Is there progress in the autopsy diagnosis of sudden unexpected death in adults? | Sudden death is now currently described as natural unexpected death occurring within 1h of new symptoms. Most studies on the subject focused on cardiac causes of death because most of the cases are related to cardiovascular disease, especially coronary artery disease. The incidence of sudden death varies largely as a f... |
9,917 | [Effects of tetramethylpyrazine on fibrosis of atrial tissue and atrial fibrillation in a canine model of congestive heart failure induced by ventricular tachypacing]. | To explore the effects of tetramethylpyrazine (TMP) on fibrosis of atrial tissue and atrial fibrillation in a canine model of congestive heart failure (CHF) induced by ventricular tachypacing.</AbstractText>Twenty-one healthy mongrel dogs were randomly divided into three groups, which were normal control group, untreat... |
9,918 | Comparison of beta-blockers, amiodarone plus beta-blockers, or sotalol for prevention of shocks from implantable cardioverter defibrillators: the OPTIC Study: a randomized trial. | Implantable cardioverter defibrillator (ICD) therapy is effective but is associated with high-voltage shocks that are painful.</AbstractText>To determine whether amiodarone plus beta-blocker or sotalol are better than beta-blocker alone for prevention of ICD shocks.</AbstractText><AbstractText Label="DESIGN, SETTING, A... |
9,919 | Conversion of atriopulmonary Fontan to extracardiac total cavopulmonary connection improves cardiopulmonary function. | Experimental studies showed that extracardiac total cavopulmonary connection provides superior hemodynamics than atriopulmonary Fontan.</AbstractText>We prospectively assessed the impact of conversion of atriopulmonary Fontan to extracardiac total cavopulmonary connection on exercise capacity and cardiac function in 6 ... |
9,920 | Integrated electroanatomic mapping with three-dimensional computed tomographic images for real-time guided ablations. | New ablation strategies for atrial fibrillation or nonidiopathic ventricular tachycardia are increasingly based on anatomic consideration and require the placement of ablation lesions at the correct anatomic locations. This study sought to evaluate the accuracy of the first clinically available image integration system... |
9,921 | Calcium instabilities in mammalian cardiomyocyte networks. | The degeneration of a regular heart rhythm into fibrillation (a chaotic or chaos-like sequence) can proceed via several classical routes described by nonlinear dynamics: period-doubling, quasiperiodicity, or intermittency. In this study, we experimentally examine one aspect of cardiac excitation dynamics, the long-term... |
9,922 | The kinetics of spontaneous calcium oscillations and arrhythmogenesis in the in vivo heart during ischemia/reperfusion. | The correlation between spontaneous calcium oscillations (S-CaOs) and arrhythmogenesis has been investigated in a number of theoretical and experimental in vitro models. There is an obvious lack of studies that directly investigate how the kinetics of S-CaOs correlates with a specific arrhythmia in the in vivo heart.</... |
9,923 | Increased risk of paroxysmal atrial fibrillation episodes associated with acute increases in ambient air pollution. | We reported previously that 24-hr moving average ambient air pollution concentrations were positively associated with ventricular arrhythmias detected by implantable cardioverter defibrillators (ICDs). ICDs also detect paroxysmal atrial fibrillation episodes (PAF) that result in rapid ventricular rates. In this same co... |
9,924 | First documented rhythm and clinical outcome from in-hospital cardiac arrest among children and adults. | Cardiac arrests in adults are often due to ventricular fibrillation (VF) or pulseless ventricular tachycardia (VT), which are associated with better outcomes than asystole or pulseless electrical activity (PEA). Cardiac arrests in children are typically asystole or PEA.</AbstractText>To test the hypothesis that childre... |
9,925 | Reconfirmation algorithms should be the standard of care in automated external defibrillators. | Non-sustained and self-terminating arrhythmias pose a significant challenge during resuscitation. Delivery of a defibrillation shock to a non-shockable rhythm has a poorly understood effect on the heart. The importance of assessing rhythm right up until the delivery of a shock is of increased importance when "blind" sh... |
9,926 | Advanced electrophysiologic mapping systems: an evidence-based analysis. | To assess the effectiveness, cost-effectiveness, and demand in Ontario for catheter ablation of complex arrhythmias guided by advanced nonfluoroscopy mapping systems. Particular attention was paid to ablation for atrial fibrillation (AF).</AbstractText>Tachycardia Tachycardia refers to a diverse group of arrhythmias ch... |
9,927 | Improved graft patency rates and mid-term outcome of diabetic patients undergoing total arterial myocardial revascularization. | Diabetes negatively affects the outcome of patients undergoing percutaneous transluminal coronary angioplasty (PTCA) or coronary surgery. However, data are lacking with respect to the impact of arterial revascularization in the diabetic population.</AbstractText>Between 1999 and 2003, 100 of 491 diabetics underwent cor... |
9,928 | Determinants of brain natriuretic peptide levels in patients with lone atrial fibrillation. | Although brain natriuretic peptide (BNP) is increasingly being used for screening and monitoring of congestive heart failure, its utility in patients with lone atrial fibrillation (AF) is unclear.</AbstractText>Plasma BNP levels were measured and comprehensive transthoracic echocardiography was performed in 96 subjects... |
9,929 | Prediction of paroxysmal atrial fibrillation using nonlinear analysis of the R-R interval dynamics before the spontaneous onset of atrial fibrillation. | New methods based on nonlinear theory have been developed to give more insight into complex heart rate (HR) dynamics. This study was designed to test the hypothesis that altered HR dynamics, as analyzed with complexity and fractal measures, may precede the spontaneous onset of paroxysmal atrial fibrillation (PAF). Seco... |
9,930 | Prolonged QRS duration and severity of mitral regurgitation are unfavorable prognostic markers of heart failure in patients with nonischemic dilated cardiomyopathy. | The goal of the present study was to identify predictors of event-free survival in nonischemic dilated cardiomyopathy (NIDCM) patients after administration of angiotensin-converting enzyme inhibitors (ACEI)/angiotensin receptor blockers (ARB) and beta-blockers.</AbstractText>The study group comprised 78 consecutive pat... |
9,931 | Can nifekalant hydrochloride be used as a first-line drug for cardiopulmonary arrest (CPA)? : comparative study of out-of-hospital CPA with acidosis and in-hospital CPA without acidosis. | Early defibrillation of ventricular tachycardia and fibrillation (VT/VF) is an urgent and most important method of resuscitation for survival in cardiopulmonary arrest (CPA). We have previously reported that nifekalant (NIF), a specific I(Kr) blocker developed in Japan, is effective for lidocaine (LID) resistant VT/VF ... |
9,932 | Out-of-hospital resuscitation in Estonia: a bystander-witnessed sudden cardiac arrest. | To evaluate the results of the first epidemiological study on out-of-hospital resuscitation in Estonia.</AbstractText>A prospective cohort study of 2108 consecutive standardized reports on out-of-hospital resuscitation attempts from 1 January 1999 to 31 December 2002 was conducted according to the Utstein style.</Abstr... |
9,933 | Increased prevalence of coronary artery disease, silent myocardial ischemia, complex ventricular arrhythmias, atrial fibrillation, left ventricular hypertrophy, mitral annular calcium, and aortic valve calcium in patients with chronic renal insufficiency. | Cardiovascular morbidity and mortality is high in patients with chronic renal insufficiency. Patients with chronic renal insufficiency have an increased prevalence of coronary artery disease, silent myocardial ischemia, complex ventricular arrhythmias, atrial fibrillation, left ventricular hypertrophy, mitral annular c... |
9,934 | Unmasking of Brugada syndrome by an antiarrhythmic drug in a patient with septic shock. | Asymptomatic Brugada syndrome patients often display concealed Brugada-type electrocardiogram patterns that result in under-diagnosis of this syndrome. These patients include individuals of both genders and a wide range of ages. They are as likely as non-Brugada patients to have normal longevity or to suffer from a cri... |
9,935 | Outcomes of cardiopulmonary resuscitation and predictors of survival in patients undergoing coronary angiography including percutaneous coronary interventions. | We studied the outcome of cardiopulmonary resuscitation (CPR) in patients undergoing coronary angiography (CA) and/or percutaneous coronary interventions (PCI). Of 51,985 CA and PCI patients treated between January 1, 1990, and December 31, 2000, 114 required CPR. Records were reviewed for relationships between patient... |
9,936 | Microwave ablation for atrial fibrillation: dose-response curves in the cardioplegia-arrested and beating heart. | Microwave ablation has been used to replace the traditional incisions used in the surgical treatment of atrial fibrillation. However, dose-response curves have not been established in surgically relevant models. The purpose of this study was to develop dose-response curves for the Flex 10 (Guidant, Inc) microwave devic... |
9,937 | Surgery for paroxysmal atrial fibrillation in the setting of mitral valve disease: a role for pulmonary vein isolation? | It is unknown whether pulmonary vein isolation or a complete Cox-Maze procedure is needed to ablate paroxysmal atrial fibrillation in patients with mitral valve disease. Our objective was to assess the impact of different surgical treatments for this arrhythmia in patients undergoing mitral valve surgery.</AbstractText... |
9,938 | [Pharmacotherapy of supraventricular arrhythmias. What comes, what remains, what goes?]. | Supraventricular tachycardias consist of AV-nodal-reentrant-tachycardias, atrioventricular tachycardias with accessory pathways (WPW-syndrome), atrial tachycardias, atrial fibrillation and atrial flutter. Only specific ECG interpretation with an exact arrhythmia classification offers the way to perform modern different... |
9,939 | Implantable cardioverter defibrillator (ICD) in children. | Implantable cardioverter defibrillators (ICD) proved to be effective in the prevention of sudden cardiac death in adults. In children, the experience of ICD therapy is limited. This retrospective study was undertaken to review our experience with ICD implantation in children with special consideration of psychosocial i... |
9,940 | Risk factors for arrhythmia and late death in patients with right ventricle to pulmonary artery conduit repair--Japanese multicenter study. | Arrhythmia and late cardiac deaths are thought to be major complications in patients after right ventricle (RV) to pulmonary artery (PA) conduit repair, although the incidence and predictors of these complications remain unknown. The aim of this study was to clarify the incidence and risk factors for arrhythmia and lat... |
9,941 | The short QT syndrome as a paradigm to understand the role of potassium channels in ventricular fibrillation. | The recently discovered hereditary channelopathy, the Short QT Syndrome (SQTS), is an important advance in clinical and molecular cardiology that has opened new doors for investigating the manner in which alterations in excitability and action potential morphology may facilitate the occurrence of ventricular fibrillati... |
9,942 | Risk factors of ventricular tachyarrhythmias after coronary artery bypass grafting.<Pagination><StartPage>201</StartPage><EndPage>208</EndPage><MedlinePgn>201-8</MedlinePgn></Pagination><Abstract><AbstractText Label="BACKGROUND" NlmCategory="BACKGROUND">Ventricular arrhythmias are rare and represent the most serious ar... | Myocarditis is most often induced by cardiotropic viruses and often resolves with minimal cardiac remodelling and without discernable prognostic impact. Acute myocarditis has a highly diverse clinical presentation (asymptomatic, infarct-like presentation, atrioventricular (AV)-block, atrial fibrillation, sudden death d... |
9,943 | Cardiac video analysis using Hodge-Helmholtz field decomposition. | The critical points (also known as phase singularities) in the heart reflect the pathological change of the heart tissue, and hence can be used to describe and analyze the dynamics of the cardiac electrical activity. As a result, the detection of these critical points can lead to correct understanding and effective the... |
9,944 | Low-K+ dependent QT prolongation and risk for ventricular arrhythmia in anorexia nervosa. | QT prolongation and ventricular arrhythmia have been proposed as the mechanism for sudden death in anorexia nervosa. The prevalence and the cause of QT prolongation remain controversial.</AbstractText>1) to evaluate ventricular repolarization in patients with anorexia; 2) to evaluate factors that may influence repolari... |
9,945 | Frequency of atrial fibrillation and factors related to its development in dialysis patients. | The frequency of atrial fibrillation is increased in patients with end-stage renal disease. In this study, we sought to determine the incidence of persistent and paroxysmal atrial fibrillation in patients with end-stage renal disease and to identify the risk factors associated with this arrhythmia.</AbstractText>Two hu... |
9,946 | Sleep disorders in systolic heart failure: a prospective study of 100 male patients. The final report. | Heart failure is a highly prevalent disorder. The main aims of this study were to determine the prevalence, consequences and markers of sleep apnea and the periodic limb movements (PLMS) in heart failure.</AbstractText>This is a prospective study of 100 of 114 consecutive eligible patients with heart failure and LVEF &... |
9,947 | [Mitral regurgitation]. | Mitral regurgitation is the second most frequent reason for valve surgery. The most important causes of mitral regurgitation are degenerative valve disease (mitral valve prolapse), left ventricular impairment and dilatation (in coronary artery disease or dilated cardiomyopathy), and infective endocarditis. The regurgit... |
9,948 | Normoxic resuscitation after cardiac arrest protects against hippocampal oxidative stress, metabolic dysfunction, and neuronal death. | Resuscitation and prolonged ventilation using 100% oxygen after cardiac arrest is standard clinical practice despite evidence from animal models indicating that neurologic outcome is improved using normoxic compared with hyperoxic resuscitation. This study tested the hypothesis that normoxic ventilation during the firs... |
9,949 | Bayesian evidence synthesis to extrapolate survival estimates in cost-effectiveness studies. | This paper is concerned with survival extrapolation that represents an integral part of cost-effectiveness analysis. In the absence of long-term survival estimates from randomized clinical trials or meta-analysis we show how age-sex matched U.K. population data can additionally be used to estimate survival patterns. We... |
9,950 | A fuzzy clustering neural network architecture for classification of ECG arrhythmias. | Accurate and computationally efficient means of classifying electrocardiography (ECG) arrhythmias has been the subject of considerable research effort in recent years. This study presents a comparative study of the classification accuracy of ECG signals using a well-known neural network architecture named multi-layered... |
9,951 | Surgical Treatment of Posterior Mitral Valve Prolapse: Towards 100% Repair. | The study aim was to evaluate the immediate and long-term results of surgical treatment of isolated posterior mitral valve leaflet prolapse (PLP), focusing on survival and freedom from recurrent mitral regurgitation (MR).</AbstractText>Between January 1998 and December 2012, a total of 492 consecutive patients (375 mal... |
9,952 | Atrial Fibrillation in Cardiac Sarcoidosis. | Sarcoidosis is a systemic granulomatous disease that affects the myocardium. Although ventricular arrhythmias are well known manifestations of cardiac involvement, there is increasing evidence that a significant proportion of patients with cardiac sarcoidosis (CS) also have atrial arrhythmias, atrial fibrillation being... |
9,953 | Electrical Storm: Incidence, Prognosis and Therapy. | The term "electrical storm" indicates a life-threatening clinical condition characterized by the recurrence of hemodynamically unstable ventricular tachycardia and/or ventricular fibrillation, in particular in patients with ICD implanted for primary or secondary prevention. Although there isn't a shared definition of e... |
9,954 | Proarrhythmic Effects Of Antiarrhythmic Drugs: Case Study Of Flecainide Induced Ventricular Arrhythmias During Treatment Of Atrial Fibrillation. | Flecainide is a class 1C antiarrhythmic drug especially used for the management of supraventricular arrhythmia. Flecainide also has a recognized proarrhythmic effect in patients treated for ventricular tachycardia. It is used to treat a variety of cardiac arrhythmias including paroxysmal atrial fibrillation, paroxysmal... |
9,955 | Incidence of arrhythmias in a large cohort of patients with current implantable cardioverter-defibrillators in Spain: results from the UMBRELLA Registry. | The benefit of implantable cardioverter-defibrillators (ICDs) in patients at risk of sudden death has been established in randomized clinical trials (RCTs) using the ICD models available at the time. However, observational large-scale data on the incidence of arrhythmias in up-to-date ICDs implanted according to the cu... |
9,956 | Sensor fusion methods for reducing false alarms in heart rate monitoring. | Automatic patient monitoring is an essential resource in hospitals for good health care management. While alarms caused by abnormal physiological conditions are important for the delivery of fast treatment, they can be also a source of unnecessary noise because of false alarms caused by electromagnetic interference or ... |
9,957 | ECG as a first step in the detection of left ventricular systolic dysfunction in the elderly. | Due to the demographic development there is an increasing number of senior citizens with left ventricular systolic dysfunction (LVSD), defined as ejection fraction (EF) < 40%. Unfortunately there are under-diagnosis and under-treatment in the elderly of this serious condition. Echocardiography is the g... |
9,958 | Autonomic and cardio-respiratory responses to exercise in Brugada Syndrome patients. | Imbalances of the autonomic nervous (ANS), the cardiovascular system, and ionics might contribute to the manifestation of The Brugada Syndrome (BrS). Thus, this study has aimed to investigate the cardio-respiratory fitness and the responses of the ANS both at rest and during a sub-maximal exercise stress test, in BrS p... |
9,959 | Congenitally unguarded tricuspid valve orifice with right ventricular apical isolation in an adult. | Congenitally unguarded tricuspid valve (TV) orifice, a variant of TV dysplasia, is a rare malformation with protean manifestations. This report describes a symptomatic adult male with gross right heart failure and atrial fibrillation, who was found to have an unguarded TV orifice with isolation of the trabecular apical... |
9,960 | Citalopram-Induced Long QT Syndrome and the Mammalian Dive Reflex. | While SCUBA diving, a 44-year-old Caucasian patient had an abnormal cardiac rhythm, presumably Torsade de Pointes (TdP), during the initial descent to depth. Upon surfacing, she developed ventricular fibrillation and died. The patient had been treated for mild depression for nearly a year with citalopram 60 mg per... |
9,961 | Early Amiodarone-Induced Pulmonary Toxicity after Endovascular Aneurysm Repair: A Case Report. | Amiodarone is an antiarrhythmic drug that has been commonly used to treat supraventricular and ventricular arrhythmias. This drug is an iodine-containing compound that tends to accumulate in several organs, including the lungs. Especially, its main metabolically active metabolite desethylamiodarone can adversely affect... |
9,962 | Mechanical Chest Compressions in Prolonged Cardiac Arrest due to ST Elevation Myocardial Infarction Can Cause Myocardial Contusion. | Acute coronary syndrome is a common cause of sudden cardiac death. We present a case report of a 60-year-old man without a history of coronary artery disease who presented with ST-elevation myocardial infarction. During transportation to the hospital, he developed ventricular fibrillation (VF) and later pulseless elect... |
9,963 | Salbutamol Abuse is Associated with Ventricular Fibrillation. | Salbutamol-induced cardiac complications are well-established. Herein, we describe a case of a 24-year female who was admitted to the emergency department because of a suicide attempt with salbutamol (76 mg). Salbutamol abuse induced the development of supraventricular tachycardia and ventricular fibrillation. Regular ... |
9,964 | [Regularity of agonal respiration after untreated cardiac arrest in a swine model]. | To explore the regularity of incidence of agonal respiration (AR) and agonal respiration frequency rate (ARFR) during untreated cardiac arrest (CA) after ventricular fibrillation (VF) in a swine model.</AbstractText>Ten healthy male domestic pigs weighing (25.0 ± 3.0) kg were employed in this experiment. VF was in... |
9,965 | [Effects and risks of hypothermia during blood purification in the treatment of postoperative cardiogenic shock in valvular heart diseases]. | To implement hypothermia during blood purification to investigate its effect and risk in the treatment of postoperative cardiogenic shock in valvular heart disease.</AbstractText>A non-blinded prospective randomized controlled trial (RCT) was conducted. Patients with valvular heart disease suffering from postoperative ... |
9,966 | Heart Failure with Preserved Ejection Fraction - Concept, Pathophysiology, Diagnosis and Challenges for Treatment. | Heart failure (HF) with preserved left ventricular (LV) ejection fraction (HFpEF) occurs in 40 to 60% of the patients with HF, with a prognosis which is similar to HF with reduced ejection fraction (HFrEF). HFpEF pathophysiology is different from that of HFrEF, and has been characterized with diastolic dysfunction. Dia... |
9,967 | Cardiac Resynchronization Therapy May Be Antiarrhythmic Particularly in Responders: A Systematic Review and Meta-Analysis. | This study sought to study the effect of echocardiographic response to cardiac resynchronization therapy (CRT) on ventricular arrhythmias (VA). The effect of CRT-defibrillator on sustained VA was compared with implantable cardioverter-defibrillator (ICD)-only therapy.</AbstractText>CRT is an effective adjunctive therap... |
9,968 | Right Ventricular Pacing-Induced Heart Failure after Mitral Valve Replacement. | It is an unfortunate fact that pacing-induced heart failure after cardiac surgery is frequently ignored by medical professionals. A 60-year-old woman with chronic atrial fibrillation with a single-lead right ventricular permanent pacemaker for a prolonged ventricular pause underwent mitral valve replacement 6 months la... |
9,969 | [Antiarrhythmic effect of oligonucleotides accompanied by activation of HSP70 protein in the heart of rats]. | The mechanisms of the protective effect of oligonucleotides (OGN) during pathological processes are poorlyunderstood. The goal of this work was to study the effect of OGN on arrhythmias induced by myocardial ischemia and reperfusion, and the HSP70 level in the heart. As a source of OGN was used the drug "Derinat" ("Tec... |
9,970 | Practical applicability of landiolol, an ultra-short-acting β1-selective blocker, for rapid atrial and ventricular tachyarrhythmias with left ventricular dysfunction. | Landiolol effectively controls rapid heart rate in atrial fibrillation or flutter (AF/AFL) patients with left ventricular (LV) dysfunction. However, predicting landiolol Responders and Non-Responders and patients who will experience adverse effects remains a challenge. The aim of this study was to clarify the potential... |
9,971 | [Wearable Automatic External Defibrillators]. | Defibrillation is the most effective method of treating ventricular fibrillation(VF), this paper introduces wearable automatic external defibrillators based on embedded system which includes EGG measurements, bioelectrical impedance measurement, discharge defibrillation module, which can automatic identify VF signal, b... |
9,972 | Characteristics of syncope in patients with dilated cardiomyopathy. | Syncope carries a poor prognosis among patients with dilated cardiomyopathy (DCM).</AbstractText>To assess the prevalence, describe the underlying mechanisms and to identify risk factors for syncope in patients with DCM.</AbstractText>One thousand six hundred and ten medical files of 897 patients with a diagnosis of DC... |
9,973 | N-terminal-pro-brain natriuretic peptide, a surrogate biomarker of combined clinical and hemodynamic outcomes following percutaneous transvenous mitral commissurotomy. | To examine the relationship between plasma levels of N-terminal-proB type natriuretic peptide (NT-proBNP) and various echocardiographic and hemodynamic parameters in patients with mitral stenosis undergoing percutaneous transvenous mitral commissurotomy (PTMC).</AbstractText>The study population consisted of 100 patien... |
9,974 | Global Survey of Esophageal Injury in Atrial Fibrillation Ablation: Characteristics and Outcomes of Esophageal Perforation and Fistula. | This study sought to assess the incidence, operator demographics, clinical characteristics, procedural factors, and prognosis of esophageal perforation and fistula after atrial fibrillation ablation.</AbstractText>Esophageal injury is a feared complication of atrial fibrillation ablation.</AbstractText>An Internet-base... |
9,975 | Neopterin and interleukin-6 as predictors of recurrent atrial fibrillation. | Available evidence suggests that inflammation may be associated with atrial fibrillation (AF). This prospective and observational study aimed to assess whether plasma neopterin (NPT) and interleukin-6 (IL-6) levels before and after electrical cardioversion (CV) predict AF recurrence.</AbstractText>The study was designe... |
9,976 | [Placenta percreta--a severe obstetric complication despite correct diagnosis--a case report]. | This paper presents a case of a pregnant woman with a history of two cesarean sections. The patient was admitted to the hospital because of vaginal bleeding. The ultrasound revealed a placenta covering the internal os. The placenta was characterized by heterogeneous echogenicity with visible irregular hypoechogenic are... |
9,977 | [Long-term outcome after cardioverter-defibrillator implantation in patients with Brugada syndrome]. | To observe the long-term outcome of implantable cardioverter-defibrillator (ICD) implantation in Brugada syndrome patients and to explore how to reduce the frequency of ICD nappropriate schocks.</AbstractText>This study included 14 symptomatic patients (mean age (44.3 ± 8.3) years old; all males) with Brugada synd... |
9,978 | An overlap of Brugada syndrome and arrhythmogenic right ventricular cardiomyopathy/dysplasia. | Overlapping characteristics of Brugada syndrome (BrS) and arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D) have been reported in recent studies, but little is known about the overlapping disease state of BrS and ARVC/D. A 36-year-old man, hospitalized at our institution for syncope, presented with thi... |
9,979 | An appropriate shock of the wearable cardioverter-defibrillator in an outpatient setting. | The wearable cardioverter-defibrillator (WCD) represents an alternative clinical approach to prevent sudden cardiac death as a bridge to therapy when making a final decision regarding the need for an implantable cardioverter defibrillator (ICD), especially in patients who are in the so-called gray zone according to ICD... |
9,980 | Measurement of diffuse ventricular fibrosis with myocardial T1 in patients with atrial fibrillation. | Atrial fibrillation (AF) is associated with cardiac fibrosis, which can now be measured noninvasively using T1-mapping with cardiac magnetic resonance imaging (CMRI). This study aimed to assess the impact of AF on ventricular T1 at the time of CMRI.</AbstractText>Subjects with AF scheduled for AF ablation underwent CMR... |
9,981 | An inappropriate defibrillator shock during ventricular tachycardia. | Ventricular oversensing in patients with defibrillators is an infrequent but deleterious condition. We report a patient with a cardiac resynchronization-defibrillation device that presented with hyperkalemia and syncope. Device interrogation revealed ventricular double-counting within the QRS of a slow ventricular tach... |
9,982 | Dual chamber pacing mode in an atrial antitachycardia pacing device without a ventricular lead - A necessary evil. | We present a case of a single chamber atrial pacemaker implanted for sinus node dysfunction and treatment of macroreentrant atrial tachycardias with atrial antitachycardia pacing. The patient presented with sustained atrial tachycardia above the detection rate, however, the device was unable to detect the tachycardia a... |
9,983 | Delayed AICD therapy and cardiac arrest resulting from undersensing of ventricular fibrillation in a subject with hypertrophic cardiomyopathy-A case report. | Defibrillation testing is no longer routinely performed after automatic implantable cardioverter-defibrillator (AICD) implantation. However, certain subjects undergoing AICD implantation may be at higher risk of undersensing of ventricular arrhythmias resulting in potentially fatal outcomes. We present the case of a 30... |
9,984 | Direct His-Bundle Pacing Improved Left Ventricular Function and Remodelling in a Biventricular Pacing Nonresponder. | The optimal pacing modality after atrioventricular junction (AVJ) ablation remains unclear. Herein, we describe the case of a heart failure patient who had AVJ ablation for chronic atrial fibrillation and received a cardiac resynchronization therapy defibrillator device. Because of the lack of clinical response to bive... |
9,985 | Heart Transplant in Patients with Predominantly Rheumatic Valvular Heart Disease. | International records indicate that only 2.6% of patients with heart transplants have valvular heart disease. The study aim was to evaluate the epidemiological and clinical profile of patients with valvular heart disease undergoing heart transplantation.</AbstractText>Between 1985 and 2013, a total of 569 heart transpl... |
9,986 | Natural history of coexistent mitral regurgitation after aortic valve replacement. | The long-term evolution of coexistent mitral regurgitation (MR) after aortic valve replacement (AVR) for aortic stenosis remains poorly defined. Prior studies have demonstrated that acute improvement in MR after AVR is modest, and more aggressive approaches have been advocated. This study examines the evolution of MR a... |
9,987 | Practice Patterns for Outpatients With Stable Coronary Artery Disease: A Case Vignette-based Survey Among French Cardiologists. | Although medical management of patients with coronary artery disease (CAD) is often based on scientific guidelines, a number of everyday clinical situations are not specifically covered by recommendations or the level of evidence is low. The aim of this study was to assess practice patterns regarding routine management... |
9,988 | Effects of Shen-Fu injection on coagulation-fibrinolysis disorders in a porcine model of cardiac arrest. | The objective of the study is to investigate the effects of Shen-Fu injection (SFI) on coagulation-fibrinolysis disorders in a porcine model of cardiac arrest.</AbstractText>Thirty Wuzhishan pigs were randomly assigned into the sham operation group (SO group, n = 6), epinephrine group (EP group, n = 12), and SFI group ... |
9,989 | Blunted rate-dependent left atrial pressure response during isoproterenol infusion in atrial fibrillation patients with impaired left ventricular diastolic function: a comparison to pacing. | A heart rate (HR)-dependent haemodynamic linkage between peak left atrial (LA) pressure during sinus rhythm (LAPpeak) and estimated left ventricular (LV) filling pressure (E/Em) has not yet been explored. We hypothesized that rate-dependent LAPpeak response differs depending on E/Em in patients with atrial fibrillation... |
9,990 | The role of variability in night-time mean heart rate on the prediction of ventricular arrhythmias and all-cause mortality in implantable cardioverter defibrillator patients. | This study was to use implantable cardioverter defibrillator (ICD) home monitoring (HM) feature to evaluate the role of mean night-time heart rate (MNHR) in the occurrence of ventricular arrhythmias (VAs) and mortality.</AbstractText>This study retrospectively analysed clinical and ICD device data in 318 ICD patients. ... |
9,991 | First clinical experience of the safety and feasibility of total subcutaneous implantable defibrillator in an Asian population. | The safety and feasibility of a subcutaneous implantable cardioverter-defibrillator (S-ICD) has been demonstrated in the treatment of life-threatening ventricular tachyarrhythmias (VT). Nonetheless, its safety and feasibility in an Asian population with smaller body-build is unclear.</AbstractText>Twenty-one Asian pati... |
9,992 | Sudden cardiac death in China: current status and future perspectives. | Sudden cardiac death (SCD) is a major cause of mortality worldwide. Similar to the number of SCDs in western countries including the USA, the number of SCDs in China is ∼544,000 annually. However, there are significant differences in patient characteristics between Chinese primary prevention population and U.S. ... |
9,993 | Electrical Injury-Induced Complete Atrioventricular Block: Is Permanent Pacemaker Required? | A considerable percentage of electrical injuries occur as a result of work activities. Electrical injury can lead to various cardiovascular disorders: acute myocardial necrosis, myocardial ischemia, heart failure, arrhythmias, hemorrhagic pericarditis, acute hypertension with peripheral vasospasm, and anomalous, nonspe... |
9,994 | Early Repolarisation - What Should the Clinician Do? | The early repolarisation (ER) pattern is a common ECG finding. Most individuals with the ER pattern are at minimal risk for arrhythmic events. In others, ER increases the arrhythmic risk of underlying cardiac pathology. Rarely ER syndrome will manifest as a primary arrhythmogenic disorder causing ventricular fibrillati... |
9,995 | Contemporary Mapping Techniques of Complex Cardiac Arrhythmias - Identifying and Modifying the Arrhythmogenic Substrate. | Cardiac electrophysiology has moved a long way forward during recent decades in the comprehension and treatment of complex cardiac arrhythmias. Contemporary electroanatomical mapping systems, along with state-of-the-art technology in the manufacture of electrophysiology catheters and cardiac imaging modalities, have si... |
9,996 | Long-Term Prognostic Role of the Diagnostic Criteria for Arrhythmogenic Right Ventricular Cardiomyopathy/Dysplasia. | The aim of this study was to evaluate the long-term prognostic role of the 2010 task force criteria (TFC)-based scoring in patients with arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D).</AbstractText>Categories of the 2010 TFC include the risk factors for cardiovascular mortality and sudden cardiac d... |
9,997 | [Hypertrophic cardiomyopathy with midventricular obstruction of the left ventricle (MVO)--case report]. | A 76-year old woman with a history of stage 3 arterial hypertension, paroxysmal atrial fibrillation, hypercholesterolemia and type 2 diabetes mellitus. Ventricular tachycardia was the first clinical manifestation of the disease. Echocardiography revealed hypertrophic cardiomyopathy with a high intraventricular gradient... |
9,998 | [Occurrence and clinical characteristics of sleep apnea syndrome in heart failure patients with atrial fibrillation]. | To evaluate the occurrence and clinical characteristics of sleep apnea syndrome (SAS) in heart failure (HF) patients with atrial fibrillation (AF).</AbstractText>From HF patients hospitalized in the First Affiliated Hospital of Nanjing Medical University during June 2012 and June 2014, subjects were recruited based on ... |
9,999 | Epidemiology of Out-of-Hospital Cardiac Arrests Among Japanese Centenarians: 2005 to 2013. | Although the number of centenarians has been rapidly increasing in industrialized countries, no clinical studies evaluated their characteristics and outcomes from out-of-hospital cardiac arrests (OHCAs). This nationwide, population-based, observation of the whole population of Japan enrolled consecutive OHCA centenaria... |
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