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21,800 | New Features of Electrocardiogram in a Case Report of Arrhythmogenic Right Ventricular Cardiomyopathy: A Care-Compliant Article. | Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a crucial health problem. With sudden death often being the first presentation, early diagnosis for ARVC is essential. Up to date, electrocardiogram (ECG) is a widely used diagnostic method without invasive harms. To diagnose and treat ARVC as well as possible, ... |
21,801 | Calmodulin 2 Mutation N98S Is Associated with Unexplained Cardiac Arrest in Infants Due to Low Clinical Penetrance Electrical Disorders. | Calmodulin 1, 2 and 3 (CALM) mutations have been found to cause cardiac arrest in children at a very early age. The underlying aetiology described is long QT syndrome (LQTS), catecholaminergic polymorphic ventricular tachycardia (CPVT) and idiopathic ventricular fibrillation (IVF). Little phenotypical data about CALM2 ... |
21,802 | Quality of Life Experiences among Women with Atrial Fibrillation: Findings from an Online Survey. | Although atrial fibrillation (AF) is the most common abnormal heart rhythm in men and women, there are gender differences. Mortality for women with AF can be 2.5 times greater than for men. AF risk among women is also greater than in men when patients have additional conditions. Women are more likely to experience long... |
21,803 | Noninvasive measurement of cardiac output during 6-minute walk test by inert gas rebreathing to evaluate heart failure. | The objective of this study was to assess the clinical value of cardiac output (CO) measurements using the inert gas rebreathing (IGR) method during the 6-minute walk test (6MWT) in evaluation of chronic heart failure (CHF).</AbstractText>A total of 56 CHF patients in our hospital who conformed to the Framingham CHF di... |
21,804 | [The neuroprotective effect of mild therapeutic hypothermia after out-of-hospital cardiac arrest with successful reanimation - a case report]. | The use of mild therapeutic hypothermia (MTH) in adult patients remaining in a coma following cardiac arrest, regardless of its mechanism and location, is recommended by the European Resuscitation Council. The study presents a case of a 52-year-old man in whom MTH was used following successfully resuscitated out-of- ho... |
21,805 | Coronary artery vasospasms in a microminipig occurred after placing an ameroid constrictor. | A 12-month-old microminipig, weighing 12.6 kg, showed 3 repeated episodes of transient ST-segment elevation in 24 hr Holter electrocardiogram after placing an ameroid constrictor around the left anterior descending coronary artery. Ventricular fibrillation was noticed just after the cessation of the 24 hr Holter-electr... |
21,806 | Alteration of fatal 1:1 conducted atrial flutter to less conducted ratio by landiolol infusion. | An 84-year-old male patient with a past history of atrial-flutter-fibrillation and dementia underwent an urgent femoral neck fracture surgery. Preoperative electrocardiography demonstrated atrial flutter (AFL) with ventricular conduction at a ratio of 2:1-4:1, and transthoracic echocardiography showed severe left ventr... |
21,807 | Baseline and long-term gamma-glutamyltransferase, heart failure and cardiac arrhythmias in middle-aged Finnish men: Prospective study and pooled analysis of published evidence. | To assess the associations of baseline and long-term gamma-glutamyltransferase (GGT) activity with risk of heart failure (HF), ventricular arrhythmias (VAs) and atrial fibrillation (AF).</AbstractText>GGT measurements were made in a prospective cohort of 1780 men free of HF and cardiac arrhythmias at baseline. Correcti... |
21,808 | Prognostic value of tissue Doppler imaging for predicting ventricular arrhythmias and cardiovascular mortality in ischaemic cardiomyopathy. | Only 30% of patients receiving an implantable cardioverter defibrillator (ICD) for primary prevention receive appropriately therapy. We sought to investigate the value of tissue Doppler imaging (TDI) to predict ventricular tachycardia (VT), ventricular fibrillation (VF), and cardiovascular mortality (CVD) in patients w... |
21,809 | The "Pain wave": P‑wave oversensing in subcutaneous ICD. | A 46-year old man was implanted with a totally subcutaneous implantable defibrillator, after having a documented episode of cardiac arrest due to idiopathic ventricular fibrillation. During the 4‑month follow-up, an episode of inappropriate triple counting due to P‑ and T‑wave overse... |
21,810 | Heart within a Heart. | Device based closure of the left atrial appendage (LAA) has emerged as a viable approach for stroke prevention in atrial fibrillation (AF) patients with contraindications to chronic oral anticoagulation. One of the most feared complications is device related thrombus formation. We present a 66-year-old male with chroni... |
21,811 | Marine omega-3 highly unsaturated fatty acids: From mechanisms to clinical implications in heart failure and arrhythmias. | Therapeutic implications of marine omega-3 highly unsaturated fatty acids (HUFA) in cardiovascular disease are still discussed controversially. Several clinical trials report divergent findings and thus leave ambiguity on the meaning of oral omega-3 therapy. Potential prognostic indications of HUFA treatment have been ... |
21,812 | Arterial pressure, end-tidal carbon dioxide, and central venous oxygen saturation in reflecting compression depth. | We sought to investigate the utility of arterial pressure, end-tidal carbon dioxide (ETCO2 ), and central venous oxygen saturation (SCVO2 ) to guide compression depth adjustment. Thus, in a pig model of cardiac arrest, we observed these parameters during cardiopulmonary resuscitation (CPR) with optimal and suboptimal c... |
21,813 | Recent developments in the subcutaneous ICD. | The subcutaneous implantable cardioverter-defibrillator (ICD) was developed as a simple device to reduce the morbidity of ICD therapy while providing a comparable reduction in sudden death from ventricular fibrillation. This review highlights the differences compared to the traditional ICD. It includes recent data on s... |
21,814 | The Current Status of Development and Implementation of Medical Emergency Response Plan in Schools. | Automated external defibrillators (AEDs) have been widely distributed at schools in Japan. We have demonstrated that ventricular fibrillation accounted for 68% of nontraumatic sudden cardiac arrest (SCA) in schools, suggesting that a well-prepared medical emergency response plan (MERP) for schools would improve the out... |
21,815 | Double Sequential External Defibrillation and Survival from Out-of-Hospital Cardiac Arrest: A Case Report. | Patients who present in ventricular fibrillation are typically treated with cardiopulmonary resuscitation (CPR), epinephrine, antiarrhythmic medications, and defibrillation. Although these therapies have shown to be effective, some patients remain in a shockable rhythm. Double sequential external defibrillation has bee... |
21,816 | Outcome and predictors of cardiopulmonary resuscitation among patients admitted in Medical Intensive Care Unit in North India. | Outcome and predictors of survival after cardiopulmonary resuscitation (CPR) in Intensive Care Units (ICUs) have been extensively studied in western world, but data from developing countries is sparse.</AbstractText>To study the outcome and predictors of survival after CPR in a Medical ICU (MICU) of a tertiary level te... |
21,817 | Changes in left ventricular filling parameters following catheter ablation of atrial fibrillation. | Atrial fibrillation (AF) is common in the setting of abnormal ventricular relaxation. We evaluated the association between ventricular relaxation grade and atrial fibrosis and examined the change in left ventricular filling parameters following catheter ablation.</AbstractText>AF patients undergoing catheter ablation w... |
21,818 | Chest compression pauses during defibrillation attempts. | This article summarizes current knowledge of the causes and consequences of interruption of chest compressions during cardiopulmonary resuscitation.</AbstractText>Pauses in chest compressions occur during analysis of the heart rhythm, delivery of ventilation, interventions such as intubation, and gaining intravenous ac... |
21,819 | [Aortic Valve Regurgitation with Dove-coo Murmur: Report of Two Cases]. | We performed aortic valve replacement in 2 patients with aortic regurgitation (AR) in whom a "dovecoo" murmur was heard. Here we discuss the valve shape and the origin of the heart murmur. In the 1st patient, echocardiography revealed prolapse of the right coronary valve cusp toward the left ventricular outflow tract d... |
21,820 | Adjuvant Pericardial Sac Restraining in Heart Failure Treatment. A Medical Hypothesis Illustrated by a Case Report. | Ventricular constraint therapy has been used to prevent and reverse the progression of heart failure in ischemic and nonischemic cardiomyopathies. We hypothesized that ventricular restraint should be tried by closing the pericardium that was previously opened following left ventricle topographical projection. The surgi... |
21,821 | Impaired Right Ventricular-Pulmonary Arterial Coupling and Effect of Sildenafil in Heart Failure With Preserved Ejection Fraction: An Ancillary Analysis From the Phosphodiesterase-5 Inhibition to Improve Clinical Status And Exercise Capacity in Diastolic Heart Failure (RELAX) Trial. | Right ventricular (RV) dysfunction (RVD) is a poor prognostic factor in heart failure with preserved ejection fraction (HFpEF). The physiological perturbations associated with RVD or RV function indexed to load (RV-pulmonary arterial [PA] coupling) in HFpEF have not been defined. HFpEF patients with marked impairment i... |
21,822 | Outcome of left ventricular surgical remodelling after the STICH trial. | After the publication of the Surgical Treatment for Ischaemic Heart Failure (STICH) trial, surgical indications to left ventricular surgical remodelling (LVSR) have become more restrictive. The experience we report reflects the changes in the real world after the publication of STICH trial.</AbstractText>From May 2009 ... |
21,823 | Ventricular fibrillation resulting from electrolyte imbalance reveals vipoma in MEN1 syndrome. | Sporadic VIPoma is an exceedingly rare tumor with an annual incidence of 1:10 million people worldwide, yet it is described in approximately 5 % of MEN1 patients. The majority of VIPomas are malignant and radical surgery is the best therapeutic option. A 58-year-old man presented with cardiocirculatory arrest due ... |
21,824 | Late Gadolinium Enhancement in Patients with Nonischemic Dilated Cardiomyopathy. | One-third of all patients with heart failure have nonischemic dilated cardiomyopathy (NIDM). Five-year mortality from NIDM is as high as 20% with sudden cardiac death (SCD) as the cause in 30% of the deaths. Currently, the left ventricular ejection fraction (LVEF) is used as the main criteria to risk stratify patients ... |
21,825 | Intraoperative Defibrillation Testing of Subcutaneous Implantable Cardioverter-Defibrillator Systems-A Simple Issue? | The results of the recently published randomized SIMPLE trial question the role of routine intraoperative defibrillation testing. However, testing is still recommended during implantation of the entirely subcutaneous implantable cardioverter-defibrillator (S-ICD) system. To address the question of whether defibrillatio... |
21,826 | Total endoscopic ablation of patients with long-standing persistent atrial fibrillation: a randomized controlled study. | Total endoscopic ablation of atrial fibrillation is an alternative to catheter ablation, but its clinical role needs further evaluation. The aim of this study was to compare total endoscopic ablation with rate control in patients with long-standing persistent atrial fibrillation and to examine the effect of endoscopic ... |
21,827 | Role of Digoxin in Atrial Fibrillation. | Since its isolation in the 1930s, digoxin has played a pivotal role in the treatment of cardiac conditions including heart failure and supraventricular tachyarrhythmias. The parasympathomimetic activity makes digoxin a reasonable option for controlling ventricular rate in atrial fibrillation (AF). However, the unique p... |
21,828 | Several insights into the preprocessing of electrograms in atrial fibrillation for dominant frequency analysis. | Dominant frequency (DF) analysis of atrial electrograms has become an important method in characterizing atrial fibrillation (AF). As a classic method, Botteron's approach is widely used in the preprocessing of frequency analysis during AF. It includes three steps: (1) band-pass filtering at 40-250 Hz, (2) absolute val... |
21,829 | Pulmonary embolism as a complication of an electrophysiological study: a case report. | Electrophysiological studies have become an established practice in the evaluation and treatment of arrhythmias. Symptomatic pulmonary embolism as a result of deep vein thrombosis arising from multiple venous sheath femoral vein catheterization is an uncommon complication associated with it. We report the case of a 33-... |
21,830 | [Correlation of Tp-e interval and Tp-e/Q-T ratio with malignant ventricular arrhythmia in patients with implantable cardioverter-defibrillator for primary prevention]. | To investigate whether Tpeak-Tend interval (Tp-e) and Tp-e/QT ratio are associated with malignant ventricular arrhythmia in patients with implantable cardioverter-defibrillator (ICD) for primary prevention.</AbstractText>A cohort of 68 consecutive patients with chronic heart failure undergoing standard ICD for primary ... |
21,831 | High Incidence of De Novo and Subclinical Atrial Fibrillation in Patients With Hypertrophic Cardiomyopathy and Cardiac Rhythm Management Device. | Atrial fibrillation (AF) is an important prognostic parameter in patients with hypertrophic cardiomyopathy (HCM). Though cardiac rhythm management (CRM) devices (e.g., ICD, pacemaker or implantable loop recorder) can detect subclinical AF, data describing the incidence of AF are rare. We therefore investigated the inci... |
21,832 | Cardiac device therapy in patients with left ventricular dysfunction and heart failure: 'real-world' data on long-term outcomes (mortality, hospitalizations, days alive and out of hospital). | The impact on long-term outcomes of implantable cardioverter defibrillators (ICDs) and biventricular defibrillators for cardiac resynchronization (CRT-D) devices in 'real world' patients with heart failure (HF) needs to be assessed in terms of clinical effectiveness.</AbstractText>A registry including consecutive HF pa... |
21,833 | Tako-tsubo cardiomyopathy triggered by multiple shocks in electrical storm. | Tako-tsubo cardiomyopathy (TTC) is a syndrome characterized by acute transient ventricular dysfunction in the absence of obstructive coronary artery disease and is predominantly associated with exposure to sudden emotional or physical stress. Patients with TTC may develop serious in-hospital complications, including ve... |
21,834 | Prognostic Relevance of Left Atrial Dysfunction in Heart Failure With Preserved Ejection Fraction. | Left atrial (LA) size is an established marker of risk for adverse outcomes in heart failure with preserved ejection fraction (HFpEF). However, the independent prognostic importance of LA function in HFpEF is not known.</AbstractText>We assessed LA function measured by speckle-tracking echocardiography in 357 patients ... |
21,835 | The combined effects of ranolazine and dronedarone on human atrial and ventricular electrophysiology. | Pharmacological rhythm control of atrial fibrillation (AF) in patients with structural heart disease is limited. Ranolazine in combination with low dose dronedarone remarkably reduced AF-burden in the phase II HARMONY trial. We thus aimed to investigate the possible mechanisms underlying these results.</AbstractText>Pa... |
21,836 | [Safety and efficacy of Cox-maze Ⅲ procedure for patients with atrial fibrillation associated with rheumatic mitral valve disease]. | To evaluate the safety and efficacy of cut-and-sew Cox-Maze (CM) Ⅲ procedure for patients with atrial fibrillation associated with rheumatic mitral valve disease.</AbstractText>Patients received mitral valve replacement and CM procedure between January 2007 and July 2015, were 1∶1 matched and assigned to ... |
21,837 | Defibrillation time intervals and outcomes of cardiac arrest in hospital: retrospective cohort study from Get With The Guidelines-Resuscitation registry. | To describe temporal trends in the time interval between first and second attempts at defibrillation and the association between this time interval and outcomes in patients with persistent ventricular tachycardia or ventricular fibrillation (VT/VF) arrest in hospital.</AbstractText>Retrospective cohort study</AbstractT... |
21,838 | A clinical approach to obstructive sleep apnea as a risk factor for cardiovascular disease. | Obstructive sleep apnea (OSA) is associated with cardiovascular risk factors, cardiovascular diseases, and increased mortality. Epidemiological studies have established these associations, and there are now numerous experimental and clinical studies which have provided information on the possible underlying mechanisms.... |
21,839 | The Influence of Perioperative Dexmedetomidine on Patients Undergoing Cardiac Surgery: A Meta-Analysis. | The use of dexmedetomidine may have benefits on the clinical outcomes of cardiac surgery. We conducted a meta-analysis comparing the postoperative complications in patients undergoing cardiac surgery with dexmedetomidine versus other perioperative medications to determine the influence of perioperative dexmedetomidine ... |
21,840 | ECMO Used in a Refractory Ventricular Tachycardia and Ventricular Fibrillation Patient: A National Case-Control Study. | Refractory cardiac arrhythmia, which has a poor response to defibrillation and antiarrhythmia medication, is a complicated problem for clinical physicians during resuscitation. Extracorporeal membrane oxygenation (ECMO) may be used to sustain life in this situation. ECMO is useful for cardiopulmonary resuscitation amon... |
21,841 | STRUCTURAL AND FUNCTIONAL BASES OF CARDIAC FIBRILLATION. DIFFERENCES AND SIMILARITIES BETWEEN ATRIA AND VENTRICLES. | Evidence accumulated over the last 25 years suggests that, whether in the atria or ventricles, fibrillation may be explained by the self-organization of the cardiac electrical activity into rapidly spinning rotors giving way to spiral waves that break intermittently and result in fibrillatory conduction. The dynamics a... |
21,842 | Spinal Anaesthesia is Safe in a Patient with Wolff-Parkinson-White Syndrome Undergoing Evacuation of Molar Pregnancy. | Wolff-Parkinson-White (WPW) syndrome is an uncommon cardiac condition where there is an abnormal band of atrial tissue connecting atria and ventricles which can electrically bypass atrioventricular node. The anaesthetic management in these patients is challenging as life threatening complications can occur perioperativ... |
21,843 | 2,3-Butanedione monoxime facilitates successful resuscitation in a dose-dependent fashion in a pig model of cardiac arrest. | Ischemic contracture compromises the hemodynamic effectiveness of cardiopulmonary resuscitation (CPR) and resuscitability from cardiac arrest. In a pig model of cardiac arrest, 2,3-butanedione monoxime (BDM) attenuated ischemic contracture. We investigated the effects of different doses of BDM to determine whether incr... |
21,844 | Compound Mutations Cause Increased Cardiac Events in Children with Long QT Syndrome: Can the Sequence Homology-Based Tools be Applied for Prediction of Phenotypic Severity? | Long QT syndrome (LQTS) can cause syncope, ventricular fibrillation, and death. Recently, several disease-causing mutations in ion channel genes have been identified, and compound mutations have also been detected. It is unclear whether children who are carriers of compound mutations exhibit a more severe phenotype tha... |
21,845 | Thyrotoxic Periodic Paralysis: A Concise Review of the Literature. | Thyrotoxic periodic paralysis (TPP) is a rare disease entity highlighted by hypokalemia, flaccid paralysis, and thyrotoxicosis. It usually presents as sudden profound muscle weakness manifested as almost complete immobility and can affect proximal and distal limb muscles, respiratory musculature as well as the cardiac ... |
21,846 | Energy conserving chemical defibrillation of ventricular fibrillation: A randomized two phase controlled blinded trial. | Potassium cardioplegia-induced transient asystole may conserve myocardial energy, foster chemical defribrillation, and improve VF arrest outcome. A trial of potassium infusion with or without calcium reversal was conducted to test for improvement in intra-arrest VF waveform and post-ROSC hemodynamics.</AbstractText>Eig... |
21,847 | A case of brugada syndrome presenting with ventricular fibrillation storm and prominent early repolarization. | A 21-year-old man developed ventricular fibrillation (VF) while drinking alcohol and was admitted to our hospital. An electrocardiogram (ECG) on admission revealed remarkably prominent slurs on the terminal part of QRS complexes in the left precordial leads and a coved type ST elevation at higher intercostal spaces. Af... |
21,848 | Arrhythmogenic cardiomyopathy. | Arrhythmogenic cardiomyopathy (AC) is a heart muscle disease clinically characterized by life-threatening ventricular arrhythmias and pathologically by an acquired and progressive dystrophy of the ventricular myocardium with fibro-fatty replacement. Due to an estimated prevalence of 1:2000-1:5000, AC is listed among ra... |
21,849 | Catheter Ablation of Recurrent Ventricular Fibrillation: A Literature Review and Case Examples. | Ventricular fibrillation (VF) electrical storm is a serious and life-threatening event, and is often triggered by premature ventricular complexes (PVCs). Catheter ablation of these PVC triggers have been described in a variety of clinical situations, including post-myocardial infarction (MI), patients with structurally... |
21,850 | Functional and Transcriptional Characterization of Histone Deacetylase Inhibitor-Mediated Cardiac Adverse Effects in Human Induced Pluripotent Stem Cell-Derived Cardiomyocytes. | Histone deacetylase (HDAC) inhibitors possess therapeutic potential to reverse aberrant epigenetic changes associated with cancers, neurological diseases, and immune disorders. Unfortunately, clinical studies with some HDAC inhibitors displayed delayed cardiac adverse effects, such as atrial fibrillation and ventricula... |
21,851 | Prognostic significance of fever-induced Brugada syndrome. | In Brugada syndrome (BrS), spontaneous type 1 electrocardiogram (ECG) is an established risk marker for fatal arrhythmias whereas drug-induced type 1 ECG shows a relatively benign prognosis. No study has analyzed the prognosis of fever-induced type 1 ECG (F-type1) in a large BrS cohort.</AbstractText>The objectives of ... |
21,852 | Neonatal ventricular fibrillation and an elusive ALCAPA: things are not always as they seem. | An anomalous left coronary artery from the pulmonary artery (ALCAPA) is a rare congenital cardiac condition that typically presents with poor feeding and failure to thrive from progressive myocardial ischaemia. Previous reports of ALCAPA presenting with ventricular fibrillation (VF) have suggested a causative relations... |
21,853 | Epidemiology of hyperkalemia: an update. | Hyperkalemia represents one of the most important acute electrolyte abnormalities, due to its potential for causing life-threatening arrhythmias. In individuals with normal kidney function hyperkalemia occurs relatively infrequently, but it can be much more common in patients who have certain predisposing conditions. P... |
21,854 | Pre-Procedural Serum Atrial Natriuretic Peptide Levels Predict Left Atrial Reverse Remodeling After Catheter Ablation in Patients With Atrial Fibrillation. | This study aimed to investigate the role of atrial natriuretic peptide (ANP) levels to predict left atrial (LA) reverse remodeling in atrial fibrillation (AF) patients.</AbstractText>Although LA reverse remodeling after radiofrequency catheter ablation (RFCA) for AF was reported to be associated with favorable outcomes... |
21,855 | See through ECG technology during cardiopulmonary resuscitation to analyze rhythm and predict defibrillation outcome. | Automated external defibrillators require preshock interruptions in cardiopulmonary resuscitation (CPR) to perform rhythm analysis. Artifact filtering technology may provide the opportunity to visualize the underlying ECG trace during CPR. Moreover, a continuous ventricular fibrillation analysis may be performed such t... |
21,856 | [Acute anterior myocardial infarction after rituximab]. | A 36-year-old man with a history of PR3-ANCA positive granulomatosis with polyangiitis presented with chest pain at the emergency department. Due to his underlying disease, he was treated with Rituximab in regular intervals. The last Rituximab infusion was admitted one day before presentation.</AbstractText>The ECG sho... |
21,857 | Systematic Review of Defibrillation Threshold Testing at De Novo Implantation. | Recent results from the largest multicenter randomized trial (Shockless IMPLant Evaluation [SIMPLE]) on defibrillation threshold (DFT) testing suggest that while shock testing seems safe, it does not reduce the risk of failed shocks or prolong survival. A contemporary systematic review of DFT versus no-DFT testing at t... |
21,858 | Improved Ventricular Function after TEE-guided Cardioversion of Atrial Arrhythmias in Patients after the Fontan Operation. | Atrial tachyarrhythmias frequently develop after the Fontan operation. Patients with Fontan physiology rely on atrial contribution to cardiac output, and thus control of atrial arrhythmias is important. Outcomes after cardioversion in patients after Fontan have not been reported. We sought to determine if cardioversion... |
21,859 | [Heart rate and outcome in patients with acute and chronic heart failure]. | Heart rate (HR) is not only a physical sign but also a biomarker. High HR in several cardiac disorders is associated with increased mortality. In heart failure (HF), HR represents an important therapeutic target, both in the acute and chronic phase. Beta-blockers are a milestone of recommended treatments in HF patients... |
21,860 | [The Pacemaker and Implantable Cardioverter-Defibrillator Registry of the Italian Association of Arrhythmology and Cardiac Pacing--Annual report 2014]. | The pacemaker (PM) and implantable cardioverter-defibrillator (ICD) Registry of the Italian Association of Arrhythmology and Cardiac Pacing (AIAC) monitors the main epidemiological data in real-world practice. The survey for the 2014 activity collects information about demographics, clinical characteristics, main indic... |
21,861 | Ablation Versus Amiodarone for Treatment of Persistent Atrial Fibrillation in Patients With Congestive Heart Failure and an Implanted Device: Results From the AATAC Multicenter Randomized Trial. | Whether catheter ablation (CA) is superior to amiodarone (AMIO) for the treatment of persistent atrial fibrillation (AF) in patients with heart failure is unknown.</AbstractText>This was an open-label, randomized, parallel-group, multicenter study. Patients with persistent AF, dual-chamber implantable cardioverter defi... |
21,862 | A case of pregnancy-associated acute myocardial infarction with refractory ventricular fibrillation and heart failure. | Acute myocardial infarction (AMI) is rare among women of childbearing age. Spontaneous coronary artery dissection (SCAD), a rare cause of AMI, is the leading cause of pregnancy-associated acute myocardial infarction (PAMI), and is associated with critical complications, including pump failure, ventricular arrhythmias, ... |
21,863 | Two adult cases of Bland-White-Garland syndrome with lethal arrhythmia due to coronary steal phenomenon during physical or mental stress. | We experienced two adult cases of anomalous origin of the left coronary artery from the pulmonary artery, so-called Bland-White-Garland (BWG) syndrome, that presented with ventricular tachycardia (VT) and ventricular fibrillation during exertion in daily life. They presented to our hospital with syncope due to VT, and ... |
21,864 | ß-2 microglobulin level is negatively associated with global left ventricular longitudinal peak systolic strain and left atrial volume index in patients with chronic kidney disease not on dialysis. | There are many factors related to high left atrial volume index (LAVI) and global left ventricular longitudinal peak systolic strain (GLS-%) decline in chronic kidney disease. The purpose of our study is to investigate the relation between the ß-2 microglobulin (ß-2µ ) and GLS-% and LAVI in patients with... |
21,865 | [Resuscitation - Adult advanced life support]. | Enhanced measures for resuscitation of adults are based on basic measures of resuscitation. The central elements are highly effective chest compressions and avoidance of disruptions that are associated with poor patient outcomes that occur within seconds. The universal algorithm distinguishes the therapy for ventricula... |
21,866 | Impact of Additional Transthoracic Electrical Cardioversion on Cardiac Function and Atrial Fibrillation Recurrence in Patients with Persistent Atrial Fibrillation Who Underwent Radiofrequency Catheter Ablation. | Backgrounds and Objective. During the procession of radiofrequency catheter ablation (RFCA) in persistent atrial fibrillation (AF), transthoracic electrical cardioversion (ECV) is required to terminate AF. The purpose of this study was to determine the impact of additional ECV on cardiac function and recurrence of AF. ... |
21,867 | Impact of Diastolic Function Parameters on the Risk for Left Atrial Appendage Thrombus in Patients with Nonvalvular Atrial Fibrillation: A Prospective Study. | In patients with nonvalvular atrial fibrillation (NVAF), the impact of left ventricular diastolic function on the risk for left atrial appendage (LAA) thrombus has not been prospectively studied.</AbstractText>At two academic medical centers, patients with NVAF were prospectively enrolled to undergo investigational tra... |
21,868 | Increased platelet mitochondrial respiration after cardiac arrest and resuscitation as a potential peripheral biosignature of cerebral bioenergetic dysfunction. | Cardiac arrest (CA) results in a sepsis-like syndrome with activation of the innate immune system and increased mitochondrial bioenergetics.</AbstractText>To determine if platelet mitochondrial respiration increases following CA in a porcine pediatric model of asphyxia-associated ventricular fibrillation (VF) CA, and i... |
21,869 | Reducing ICD Test Shocks with a Simplified Upper Limit of Vulnerability. | Determination of an adequate defibrillation safety margin or defibrillation threshold can be a challenge in patients with implantable defibrillators (ICDs). The upper limit of vulnerability (ULV) has been shown to be highly correlated with measured defibrillation thresholds. The peak of the latest peaking monophasic T ... |
21,870 | An Automatic Algorithm Based on Morphological Stability During Fast Ventricular Arrhythmias Predicts Successful Antitachycardia Pacing in ICD Patients: A Multicenter Study. | Different types of ventricular arrhythmias (monomorphic ventricular tachycardia [VT], polymorphic VT, or ventricular fibrillation) can be detected by implantable cardiac defibrillators (ICDs) in fast VT zone. The efficacy of antitachycardia pacing (ATP) depends on the type of the treated arrhythmia. We hypothesized tha... |
21,871 | Omega-3 Fatty Acids Do Not Protect Against Arrhythmias in Acute Nonreperfused Myocardial Infarction Despite Some Antiarrhythmic Effects. | Ventricular arrhythmias are an important cause of mortality in the acute myocardial infarction (MI). To elucidate the effect of the omega-3 polyunsaturated fatty acids (PUFAs) on ventricular arrhythmias in acute nonreperfused MI, rats were fed with normal or eicosapentaenoic acid (EPA) or docosahexaenoic acid (DHA)-enr... |
21,872 | Paced QRS fragmentation is associated with spontaneous ventricular fibrillation in patients with Brugada syndrome. | Conduction abnormalities are involved in the pathogenesis of ventricular fibrillation (VF) in patients with Brugada syndrome (BrS).</AbstractText>We investigated whether right ventricular apical pacing (RVAP) could enhance the conduction abnormality and predict the susceptibility to VF in patients with BrS.</AbstractTe... |
21,873 | Aortic Regurgitation With Markedly Reduced Left Ventricular Function Is Not a Contraindication for Aortic Valve Replacement. | The current study assesses outcomes and risk factors for aortic valve replacement (AVR) for aortic regurgitation (AR) in the setting of markedly reduced left ventricular (LV) function compared with moderately reduced LV function and preserved LV function.</AbstractText>Between January 2002 and June 2013, 485 consecutiv... |
21,874 | Development of a Chest Wall Protector Effective in Preventing Sudden Cardiac Death by Chest Wall Impact (Commotio Cordis). | Commotio cordis, sudden death with chest impact, occurs clinically despite chest wall protectors worn in sports. In an experimental model of commotio cordis, commercially available chest wall protectors failed to prevent ventricular fibrillation (VF). The goal of the current investigation was to develop a chest wall pr... |
21,875 | Successful recovery of tachycardia-induced cardiomyopathy with severely depressed left ventricular systolic function by catheter ablation with mechanical hemodynamic support: a case report. | We describe the case that persistent atrial fibrillation refractory to rhythm control by pharmacotherapy and electrical cardioversions caused tachycardia-induced cardiomyopathy with low ejection fraction and hemodynamic instability. Mechanical hemodynamic support using an intra-aortic balloon pump is one of the choices... |
21,876 | Tachyarrhythmia Cycle Length in Appropriate versus Inappropriate Defibrillator Shocks in Brugada Syndrome, Early Repolarization Syndrome, or Idiopathic Ventricular Fibrillation. | Implantable cardioverter-defibrillators (ICDs) are indicated in patients with Brugada syndrome (BS), early repolarization syndrome (ERS), or idiopathic ventricular fibrillation (IVF) who are at high risk for sudden cardiac death. The optimal ICD programming for reducing inappropriate shocks in these patients remains to... |
21,877 | A New Electrocardiographic Marker of Sudden Death in Brugada Syndrome: The S-Wave in Lead I. | Risk stratification in asymptomatic patients remains by far the most important yet unresolved clinical problem in the Brugada syndrome (BrS).</AbstractText>This study sought to analyze the usefulness of electrocardiographic parameters as markers of sudden cardiac death (SCD) in BrS.</AbstractText>This study analyzed da... |
21,878 | Risk Factors for Lacunar Strokes with Visible Cerebral Lesions on Computed Tomography Scan. | The aim of this study was the detection of risk factors for lacunar strokes with visible lesions on computed tomography (CT) scan, considering in particular clinical characteristics, echocardiographic parameters, and carotid-femoral pulse wave velocity (PWV, a marker of large-artery stiffness). Lacunar strokes with ver... |
21,879 | Assessment of Atrial Electromechanical Delay and Left Atrial Mechanical Functions in Patients with Ulcerative Colitis. | Ulcerative colitis (UC) is a common inflammatory bowel disease causing systemic inflammation, which may also affect the cardiovascular system, as well as other organ systems. The aim of the current study was to evaluate left atrial (LA) mechanical functions and duration of atrial electromechanical delay (AEMD) with ech... |
21,880 | The role of pharmacotherapy in the prevention of sudden cardiac death in patients with heart failure. | Sudden cardiac death remains a significant threat to the survival of patients with heart failure. Long-term cardiac remodeling predisposes these patients to develop malignant ventricular arrhythmias. Permanent implantable and temporary external defibrillators remain a mainstay for the prevention of sudden cardiac death... |
21,881 | Does Antiarrhythmic Drug During Cardiopulmonary Resuscitation Improve the One-month Survival: The SOS-KANTO 2012 Study. | Antiarrhythmic drugs (AAD) are often used for fatal ventricular arrhythmias during cardiopulmonary resuscitation (CPR). However, the efficacy of initial AAD administration during CPR in improving long-term prognosis remains unknown. This study retrospectively evaluated the effect of AAD administration during CPR on 1-m... |
21,882 | Atrial Rate-Responsive Pacing and Incidence of Sustained Atrial Arrhythmias in Patients with Implantable Cardioverter Defibrillators. | Atrial rate-responsive pacing (RRP) has proved to be safe in pacemaker recipients with chronotropic incompetence. Although RRP is available in all current implantable cardioverter defibrillators (ICDs), the outcomes of this pacing mode in ICD patients are unknown. The aim is to evaluate the relationship between atrial ... |
21,883 | Relationship Between the Duration of Cardiopulmonary Resuscitation and Favorable Neurological Outcomes After Out-of-Hospital Cardiac Arrest: A Prospective, Nationwide, Population-Based Cohort Study. | The determination of appropriate duration of in-the-field cardiopulmonary resuscitation (CPR) for out-of-hospital cardiac arrest (OHCA) patients is one of the biggest challenges for emergency medical service providers and clinicians. The appropriate CPR duration before termination of resuscitation remains unclear and m... |
21,884 | Long-term echocardiographic follow-up of untreated 2+ functional tricuspid regurgitation in patients undergoing mitral valve surgery. | Concomitant tricuspid valve surgery with mitral valve surgery is recommended for patients with severe functional tricuspid regurgitation (TR). However, the treatment for 2+ TR (mild TR) remains controversial. Here, we evaluated the long-term results of untreated 2+ TR in patients undergoing mitral valve surgery.</Abstr... |
21,885 | Myocardial reverse remodeling: how far can we rewind? | Heart failure (HF) is a systemic disease that can be divided into HF with reduced ejection fraction (HFrEF) and with preserved ejection fraction (HFpEF). HFpEF accounts for over 50% of all HF patients and is typically associated with high prevalence of several comorbidities, including hypertension, diabetes mellitus, p... |
21,886 | Therapeutic targeting of two-pore-domain potassium (K(2P)) channels in the cardiovascular system. | The improvement of treatment strategies in cardiovascular medicine is an ongoing process that requires constant optimization. The ability of a therapeutic intervention to prevent cardiovascular pathology largely depends on its capacity to suppress the underlying mechanisms. Attenuation or reversal of disease-specific p... |
21,887 | Implantable Cardiac Defibrillator Lead Failure and Management. | The implantable-cardioverter defibrillator (ICD) lead is the most vulnerable component of the ICD system. Despite advanced engineering design, sophisticated manufacturing techniques, and extensive bench, pre-clinical, and clinical testing, lead failure (LF) remains the Achilles' heel of the ICD system. ICD LF has a bro... |
21,888 | Extended detection time to reduce shocks is safe in secondary prevention patients: The secondary prevention substudy of PainFree SST. | Prolonged ventricular fibrillation (VF) detection has been shown to reduce implantable cardioverter-defibrillator (ICD) therapies and improve prognosis in primary prevention ICD patients. Data in secondary prevention patients are limited.</AbstractText>The PainFree SST secondary prevention study is the largest trial of... |
21,889 | Association of Increased Epicardial Adipose Tissue Thickness With Adverse Cardiovascular Outcomes in Patients With Atrial Fibrillation. | The thickness of epicardial adipose tissue (EAT) was reported to be highly associated with the incidence and severity of atrial fibrillation (AF). This study was conducted to analyze the ability of EAT thickness in predicting adverse cardiovascular (CV) events in AF. In 190 persistent AF patients, we performed a compre... |
21,890 | Mechanisms and Clinical Management of Ventricular Arrhythmias following Blunt Chest Trauma. | Nonpenetrating, blunt chest trauma is a serious medical condition with varied clinical presentations and implications. This can be the result of a dense projectile during competitive and recreational sports but may also include other etiologies such as motor vehicle accidents or traumatic falls. In this setting, the ma... |
21,891 | Is It Possible to Maintain Consciousness and Spontaneous Ventilation with Chest Compression in the Early Phase of Cardiac Arrest? | Chest compression is important in cardiopulmonary resuscitation. However, life support algorithms do not specify when chest compression should be initiated in patients with persistent spontaneous normal breathing in the early phase after cardiac arrest. Here we describe the case of a 69-year-old man who underwent femor... |
21,892 | Recurrent AICD shocks in a 60-year-old man. | We present the case of a 60-year-old man with history of non-ischaemic cardiomyopathy with left ventricular ejection fraction of 40%. His baseline surface 12-lead ECG shows sinus rhythm with PR interval of 170 ms, no evidence of pre-excitation and a normal QT interval. He had a single-chamber automated implantab... |
21,893 | Disturbances of cardiac wavelength and repolarization precede Torsade de Pointes and ventricular fibrillation in Langendorff perfused rabbit hearts. | Drug-induced proarrhythmia is strongly focused on Torsade de Pointes (TdP), and QT prolongation is commonly used as a surrogate for TdP. This surrogate may be of limited value, as it produces false positives and false negatives. Cardiac electrophysiological parameters were obtained from monophasic action potentials rec... |
21,894 | Sudden cardiac arrest following ventricular fibrillation attributed to anabolic steroid use in an adolescent. | Anabolic androgenic steroids are synthetic derivatives of testosterone that promote the growth of skeletal muscles and have many recognised cardiovascular effects. We report the clinical presentation and pathological findings of an adolescent male whose sudden cardiac arrest following ventricular fibrillation was attri... |
21,895 | Loeffler endocarditis: silent right ventricular myocardium! | We present the case of a 54-year-old male patient with Loeffler endocarditis. It is a rare disorder characterized by fibrous thickening of the endocardium leading to apical obliteration and restrictive cardiomyopathy resulting in heart failure, thromboembolic events or atrial fibrillation. To the best of our knowledge,... |
21,896 | Out-of-hospital Cardiac Arrest Patient Characteristics: Comparing ventricular arrhythmia and Pulseless Electrical Activity. | The proportion of patients suffering out-of-hospital cardiac arrest presenting with ventricular arrhythmias/ventricular fibrillation (VT/VF) is decreasing, while the proportion presenting with pulseless electrical activity (PEA) is increasing. Cardiac arrest interventions target VT/VF and survival rates from PEA are mu... |
21,897 | Impact of cardiac reverse remodeling after cardiac resynchronization therapy assessed by myocardial perfusion imaging on ventricular arrhythmia. | Although cardiac resynchronization therapy (CRT) has been a useful treatment of heart failure, patients with CRT are still in risk of sudden cardiac death due to ventricular arrhythmia. The aim of this study was to investigate the impact of cardiac reverse remodeling after CRT on the prevalence of ventricular tachycard... |
21,898 | Risk of Cardiovascular Hospitalizations from Exposure to Coarse Particulate Matter (PM10) Below the European Union Safety Threshold. | The association between exposure to air pollution and acute cardiovascular (CV) events is well documented; however, limited data are available evaluating the public health safety of various "doses" of particular matter (PM) below currently accepted safety thresholds. We explored the cross-sectional association between ... |
21,899 | The Wearable Cardioverter Defibrillator in Nonischemic Cardiomyopathy: A US National Database Analysis. | The wearable cardioverter defibrillator (WCD) is often used in patients at risk of sudden cardiac death (SCD) who are not yet candidates for an implantable cardioverter defibrillator (ICD). Newly diagnosed cardiomyopathy may be reversible, and a WCD may protect patients during the initial period of risk. We evaluate th... |
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