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11,100 | Prompt and accurate diagnosis of ventricular arrhythmias with a novel index based on phase space reconstruction of ECG. | To develop a statistical index based on the phase space reconstruction (PSR) of the electrocardiogram (ECG) for the accurate and timely diagnosis of ventricular tachycardia (VT) and ventricular fibrillation (VF).</AbstractText>Thirty-two ECGs with sinus rhythm (SR) and 32 ECGs with VT/VF were analyzed using the PSR tec... |
11,101 | Prevalence of atrial fibrillation and its risk factors in rural China: a cross-sectional study. | To evaluate the prevalence of atrial fibrillation (AF) in physical laborers in rural China and identify contributing risk factors.</AbstractText>A cross-sectional study of 11,956 permanent residents of Liaoning Province in rural China≥35y of age (primarily physical laborers) was conducted between January and Aug... |
11,102 | The Outcome and Predictors of Mortality in Patients Therapeutically Cooled Postcardiac Arrest. | To review the outcomes of patients postcardiac arrest admitted to a metropolitan intensive care unit (ICU) where therapeutic hypothermia is practiced.</AbstractText>Patients admitted from 2004 to 2012 were reviewed. The management protocol included cooling to 33°C for 24 hours. The primary outcome assessed was hos... |
11,103 | Limitations of animal electrical cardiac safety models. | Human electrical safety standards are based almost exclusively on animal studies and there is an unjustified assumption that ventricular fibrillation (VF) thresholds in animals are the same as those in humans.</AbstractText>We analyzed differences between animals and humans in cardiac stimulation. A broad literature su... |
11,104 | ETD: an extended time delay algorithm for ventricular fibrillation detection. | Ventricular fibrillation (VF) is the most serious type of heart attack which requires quick detection and first aid to improve patients' survival rates. To be most effective in using wearable devices for VF detection, it is vital that the detection algorithms be accurate, robust, reliable and computationally efficient.... |
11,105 | Fusion of structural and functional cardiac magnetic resonance imaging data for studying ventricular fibrillation. | Magnetic Resonance Imaging (MRI) techniques such as Current Density Imaging (CDI) and Diffusion Tensor Imaging (DTI) provide a complementing set of imaging data that can describe both the functional and structural states of biological tissues. This paper presents a Joint Independent Component Analysis (jICA) based fusi... |
11,106 | Transthoracic cardiac stimulation thresholds for short pulses. | The most common cause of death due to electric shock is ventricular fibrillation (VF). This work reviews applicable results from the literature and provides an estimation model for the risk of VF with short-duration pulses.</AbstractText>For 1 ms pulses, the predicted current and charge thresholds required for successf... |
11,107 | The sternum as an electrical shield. | The TASER(®) conducted electrical weapon (CEW) delivers electrical pulses that can temporarily incapacitate subjects. We analyzed the distribution of TASER CEW currents in tissues posterior to the sternum to understand the likelihood of triggering cardiac arrhythmias. We also assessed the electrical `shielding' ef... |
11,108 | Electrophysiological properties under heart failure conditions in a human ventricular cell: a modeling study. | Heart failure (HF) is one of the major diseases across the world. During HF the electrophysiology of the failing heart is remodeled, which renders the heart more susceptible to ventricular arrhythmias. In this study, we quantitatively analyze the effects of electrophysiological remodeling of the major currents of human... |
11,109 | Comparison of arrhythmia prevalence in NUVANT Mobile Cardiac Telemetry System patients in the US and India. | The Corventis NUVANT™ Mobile Cardiac Telemetry System provides continuous monitoring of symptomatic and asymptomatic cardiac abnormalities to help physicians diagnose and treat non-lethal cardiac arrhythmias. Analysis of a sample of 2231 US and 1053 Indian NUVANT patients has revealed interesting statistics on t... |
11,110 | Cardiovascular effects of Adonis aestivalis in anesthetized sheep. | Adonis aestivalis (summer pheasant-eye) is an annual plant with a crimson flower, distributed in southern Europe and Asia. The plant has large buttercup-like blossoms and soft, fern-like leaves. It blooms in spring and is often found as a weed in cereal fields. Like other Adonis spp., the plant produces cardiac glycosi... |
11,111 | Ventricular dysrhythmias associated with poisoning and drug overdose: a 10-year review of statewide poison control center data from California. | Ventricular dysrhythmias are a serious consequence associated with drug overdose and chemical poisoning. The risk factors for the type of ventricular dysrhythmia and the outcomes by drug class are not well documented.</AbstractText>The aim of this study was to determine the most common drugs and chemicals associated wi... |
11,112 | Home monitoring of implantable cardioverter-defibrillators: interpretation reliability of the second-generation "IEGM Online" system. | Intracardiac electrograms (IEGMs) are essential for the assessment of implantable cardioverter-defibrillator (ICD) function. The Biotronik Home Monitoring systems transmit an 'IEGM Online' that is shorter than the full-length programmer IEGM due to technical constrains. The aim of this study was to evaluate the accurac... |
11,113 | Efficacy of cardiac resynchronization with defibrillator insertion in patients undergone coronary artery bypass graft: a cohort study of cardiac function. | Cardiac resynchronization therapy (CRT) is a proven therapeutic method in selected patients with heart failure and systolic dysfunction which increases left ventricular function and patient survival. We designed a study that included patients undergoing coronary artery bypass graft (CABG), with and without CRT-defibril... |
11,114 | Neuroanatomical correlates of atrial fibrillation: a longitudinal MRI study. | To determine baseline volume and rate of volume change of whole brain, hippocampus, and entorhinal cortex in patients with atrial fibrillation.</AbstractText>We analyzed clinical and neuroimaging data collected as part of Alzheimer's Disease Neuroimaging Initiative in the United States and Canada. Patients with atrial ... |
11,115 | Optimal conditions for cardiac catheter ablation using photodynamic therapy. | Photodynamic therapy (PDT) is based on non-thermal injury mediated by singlet oxygen species and is used clinically in cancer therapy. In our continuing efforts to apply this technology to cardiac catheter ablation, we clarified the optimal condition for creating PDT-mediated lesions using a laser catheter.</AbstractTe... |
11,116 | β-Blockers versus calcium channel blockers for acute rate control of atrial fibrillation with rapid ventricular response: a systematic review. | This is a systematic review of the literature to compare the efficacy of calcium channel blockers to β-blockers for acute rate control of atrial fibrillation with rapid ventricular response in the emergency department setting. PubMed, EMBASE, and the Cochrane Registry were searched. Relative risk (95% confidence ... |
11,117 | Negative impact of atrial fibrillation and pulmonary hypertension after mitral valve surgery in asymptomatic patients with severe mitral regurgitation: a 20-year follow-up. | The timing for mitral valve (MV) surgery in asymptomatic patients with severe mitral regurgitation (MR) and preserved left ventricular (LV) function remains controversial. We aimed at analysing the long-term outcome of asymptomatic patients with atrial fibrillation (AF) and/or pulmonary hypertension (PHT) after success... |
11,118 | Atrial fibrillation in cardiac resynchronization recipients with and without prior arrhythmic history. How much of arrhythmia is too much? | The aim of the study was to assess long-term incidence of atrial fibrillation (AF) in cardiac resynchronization (CRT) recipients with and without prior arrhythmic history, factors predisposing to arrhythmia, as well as to evaluate the prognostic power of cumulative arrhythmia burden, duration of the longest episode and... |
11,119 | Successful extracorporeal resuscitation after perioperative anaphylactic shock during living donor liver transplantation. | A 46-year-old man was admitted for emergent donor hepatectomy. His circulatory condition became unstable 75 minutes after induction and then deteriorated to ventricular fibrillation due to latex-induced anaphylaxis. Following 35 minutes of futile conventional resuscitation without spontaneous cardiac rhythm, extracorpo... |
11,120 | Incidence and risk factors of ventricular fibrillation before primary angioplasty in patients with first ST-elevation myocardial infarction: a nationwide study in Denmark. | We aimed to investigate the incidence and risk factors for ventricular fibrillation (VF) before primary percutaneous coronary intervention (PPCI) among patients with ST-segment elevation myocardial infarction (STEMI) in a prospective nationwide setting.</AbstractText>In this case-control study, patients presenting with... |
11,121 | Paradoxical carbon dioxide embolism during laparoscopic cholecystectomy as a cause of cardiac arrest and neurologic sequelae: a case report. | An 81-year-old male patient was scheduled for a laparoscopic cholecystectomy due to acute cholecystitis. About 50 minutes into the operation, the arterial blood pressure suddenly decreased and ventricular fibrillation appeared on the electrocardiography. The patient received cardiopulmonary resuscitation and recovered ... |
11,122 | Prolonged Tpeak-end and Tpeak-end/QT ratio as predictors of malignant ventricular arrhythmias in the acute phase of ST-segment elevation myocardial infarction: a prospective case-control study. | Prolonged Tpeak-end (the interval from the peak of the T wave to the end of the T wave) and Tpeak-end/QT ratio have been shown to be markers of arrhythmogenesis in various cardiac disorders.</AbstractText>The purpose of this study was to evaluate the utility of Tpeak-end and Tpeak-end/QT ratio at admission in patients ... |
11,123 | Inaccurate treatment decisions of automated external defibrillators used by emergency medical services personnel: incidence, cause and impact on outcome. | The rhythm analysis algorithm (RAA) of automated external defibrillators (AEDs) may be deceived by many factors. In this observational study we assessed RAA accuracy in prehospital interventions. For every rhythm analysis judged to be inaccurate, we looked for causal factors and estimated the impact on outcome.</Abstra... |
11,124 | Measured Lead Parameters and Electrogram Sensing Over Time in Patients With Cardiac Sarcoidosis and an Implanted Cardiac-Defibrillator. | The study sought to characterize the performance of implanted leads among a cohort of patients with cardiac sarcoidosis (CS) and implantable cardiac-defibrillators (ICDs).</AbstractText>An ICD is indicated for some patients with CS for the prevention of sudden cardiac death. CS can lead to myocardial inflammation and s... |
11,125 | Prediction of Nonarrhythmic Mortality in Primary Prevention Implantable Cardioverter-Defibrillator Patients With Ischemic and Nonischemic Cardiomyopathy. | The objective of this study was to investigate the feasibility of identifying heart failure patients who are less likely to benefit from implantable cardioverter-defibrillator (ICD) therapy among those eligible for primary prevention ICDs.</AbstractText>The cost-effectiveness of ICDs in primary prevention may be improv... |
11,126 | [Age characteristics of the cardiovascular system, depending on the thyroid function in type 2 diabetes mellitus]. | To study the features of cardiovascular system in patients with diabetes mellitus type 2 considering the thyroid pathology and age, 264 patients were examined. They were divided into three groups: 1st - patients with diffuse-nodular changes in the thyroid gland, 2nd - patients with autoimmune thyroid disease, 3rd - a c... |
11,127 | [Incidence of atrial fibrillation after cardiac surgery: Influence of the type of surgery, cardiopulmonary bypass and preoperative and perioperative predictive factors]. | Atrial fibrillation (AF) is the arrhythmia with higher incidence in postoperative period after cardiac surgery. In individuals undergoing valve replacement surgeries (VRS) it occurs in about 64% and in individuals undergoing coronary artery bypass grafting (CABG) it can occurs in about 30-40%. Its incidence in postoper... |
11,128 | Therapeutic hypothermia after cardiac arrest in Long QT syndrome: Could it be an adjunctive treatment to prevent dysrhythmias? | Therapeutic hypothermia has been used for neuroprotection following cardiac arrest presenting with ventricular tachycardia or ventricular fibrillation regardless of underlying cause. Long QT syndrome is a cause for polymorphic ventricular tachycardia, and we know that therapeutic hypothermia increases the QT interval. ... |
11,129 | Assessing the Relative Integrity of Formed Cardiac Linear Lesions by Recording Both Focal Monophasic Action Potentials and Contact Forces: A Technical Brief. | The use of therapeutic ablation in patients with atrial fibrillation has become a mainstay in the treatment of this disease, yet often these individuals require multiple procedures. In other words, successful first time treatments are impacted by challenges, including the generation of linear lesions in certain anatomi... |
11,130 | Targeted temperature management in emergency medicine: current perspectives. | Landmark trials in 2002 showed that therapeutic hypothermia (TH) after out-of-hospital cardiac arrest due to ventricular tachycardia or ventricular fibrillation resulted in improved likelihood of good neurologic recovery compared to standard care without TH. Since that time, TH has been frequently instituted in a wide ... |
11,131 | [Left Atrial Remodeling and Thromboembolic Risk in Patients With Recurrent Atrial Fibrillation]. | To assess the relationship between left ventricular and left atrial (LA) structural and functional characteristics and thromboembolic (TE) risk in patients (pts) with recurrent atrial fibrillation (AF).</AbstractText>Sixty pts (mean age 65 [61; 72] years, 42% men) with nonvalvular paroxysmal and persistent AF during si... |
11,132 | Decreased Cardiac Expression of Heat Shock Protein 27 is Associated with Atrial Fibrillation in Patients with Rheumatic Heart Disease. | The objective of this study was to compare the expression of heat shock proteins (HSPs) between rheumatic heart disease (RHD) patients with atrial fibrillation (AF) and RHD patients without AF, and its efficacy in predicting the occurrence of AF in RHD patients.</AbstractText>Ninety-five patients were enrolled in our s... |
11,133 | [ETACISIN-INDUCED BRUGADA SYNDROME IN A PATIENT WITH LONG-STANDING SUPRAVENTRICULAR EXTRASYSTOLE]. | Brugada syndrome is a commonest cause of malignant disorders of cardiac rhythm associated with sudden death. It is diagnosed based on characteristic ECG signs and ventricular arrhythmia. This paper reports a 49 year-old patient with long-standing latent BS manifest as supraventricular and transient blockade of the righ... |
11,134 | Predictors of ventricular fibrillation at reperfusion in patients with acute ST-elevation myocardial infarction treated by primary percutaneous coronary intervention. | Ventricular fibrillation (VF) during reperfusion (rVF) in ST-segment elevation myocardial infarction (STEMI) is an infrequent but serious event that complicates coronary interventions. The aim of this study was to analyze clinical predictors of rVF in an unselected population of patients with STEMI treated with percuta... |
11,135 | J Wave Syndrome: Clinical Diagnosis, Risk Stratification and Treatment. | J wave syndrome has emerged from a benign electrocardiographic abnormality to a proarrythmic state and a significant cause of idiopathic ventricular fibrillation responsible for sudden cardiac death. Electrical genesis, genetics and ionic mechanisms of J wave syndromes are active areas of research. Typically two of the... |
11,136 | Right Ventricular Outflow Tract Arrhythmias: Benign Or Early Stage Arrhythmogenic Right Ventricular Cardiomyopathy/Dysplasia? | Ventricular arrhythmias (VAs) arising from the right ventricular outflow tract (RVOT) are a common and heterogeneous entity. Idiopathic right ventricular arrhythmias (IdioVAs) are generally benign, with excellent ablation outcomes and long-term arrhythmia-free survival, and must be distinguished from other conditions a... |
11,137 | Echocardiographic Parameters Associated With Asymmetrical Structural Remodeling In Patients With Or Without Atrial Fibrillation. | Left atrial (LA) dilation can evolve into asymmetrical remodeling. The aim of this study was to determine the echocardiographic parameters associated with LA asymmetric structural remodeling (ASR) in patients with and without nonvalvular atrial fibrillation (AF).</AbstractText>A total of 170 patients with a dilated LA ... |
11,138 | Which Is The Appropriate Arrhythmia Burden To Offer RF Ablation For RVOT Tachycardias? | Premature ventricular complexes (PVCs) and ventricular tachycardia (VT) in patients with structurally normal hearts originate from the right ventricular outflow tract (RVOT) in the majority of cases. In the last few decades catheter ablation of these arrhythmias has been proven to be effective. RVOT VT/PVCs may cause d... |
11,139 | Rate Control Strategy Elevated To Primary Treatment For Atrial Fibrillation: Has The Last Word Already Been Spoken? | In the last decade, we were able to see the light shed by several trials and observational studies that dealt with the appropriate manner of treating patients with atrial fibrillation (AF). Recently the AF management by cardiologists has become more aggressive, in part because of an improved comprehension of this rhyth... |
11,140 | Importance Of Delayed Enhanced Cardiac MRI In Idiopathic RVOT-VT: Differentiating Mimics Including Early Stage ARVC And Cardiac Sarcoidosis. | A detailed understanding of cardiac anatomy and pathophysiology is necessary to optimize catheter ablation procedural success for patients with symptomatic ventricular tachycardia (VT)/premature ventricular contractions (PVCs) of outflow tract origin. Comprehensive imaging with cardiac magnetic resonance imaging (cMRI)... |
11,141 | A novel ultrasound predictor of pulmonary capillary wedge pressure assessed by the combination of left atrial volume and function: A speckle tracking echocardiography study. | We hypothesized that a development of a novel index based on the combination of left atrial volume (LAV) and left atrial (LA) function evaluated by the time-LA volume curve using speckle tracking echocardiography (STE) would be accurate and useful to estimate pulmonary capillary wedge pressure (PCWP). Our goal was to d... |
11,142 | Effects of sinus rhythm maintenance on left heart function after electrical cardioversion of atrial fibrillation: implications for tachycardia-induced cardiomyopathy. | The role of tachycardia-induced cardiomyopathy vs tachycardia-related short diastolic filling period and reduced atrial contraction in decline of left ventricular ejection fraction (LVEF) in atrial fibrillation (AF) is uncertain. We aimed to characterize left heart changes over time in patients with AF who undergo elec... |
11,143 | Inhibition of IKr potentiates development of atrial-selective INa block leading to effective suppression of atrial fibrillation. | The availability of safe and effective drugs for the management of atrial fibrillation (AF) remains an unmet medical need.</AbstractText>The purpose of this study was to test the hypothesis that the inhibition of the rapidly activating delayed rectifier potassium current (IKr) greatly potentiates the development of atr... |
11,144 | Long-term arrhythmia follow-up of patients with myotonic dystrophy. | Myotonic dystrophy (MD) is the most common muscular dystrophy in adults and is associated with sudden death. Reported predictors of sudden death in this population include atrial tachyarrhythmias, a PR interval greater than 240 milliseconds, aberrant QRS conduction, and any degree of AV block.</AbstractText>We sought t... |
11,145 | Two Cases of Ventricular Proarrhythmia from Automatic Threshold Measurement Features in a CRTD and an ICD. | The present case report presents two cases in which automatic threshold measurement features in an implantable cardiac defibrillator and in a CRTD act proarrhythmic by inducing polymorphic ventricular arrhythmia. By programming these features off the problem was solved. The mechanisms seem to be different from previous... |
11,146 | Pharmacologic inhibition of small-conductance calcium-activated potassium (SK) channels by NS8593 reveals atrial antiarrhythmic potential in horses. | Small-conductance calcium-activated potassium (SK) channels have been found to play an important role in atrial repolarization and atrial fibrillation (AF).</AbstractText>The purpose of this study was to investigate the existence and functional role of SK channels in the equine heart.</AbstractText>Cardiac biopsies wer... |
11,147 | Mechanical function of left atrium and pulmonary vein sleeves before and after their antrum isolation. | Pulmonary vein (PV) sleeves are established as the main substrate taking part in the mechanisms of atrial fibrillation (AF) initiation. However, we have extremely few data concerning their physiological role in the heart contractility. The aim of the study was to estimate the mechanical function of the left atrium (LA)... |
11,148 | Systolic blood pressure on discharge after left ventricular assist device insertion is associated with subsequent stroke. | Stroke is a significant complication in patients supported with continuous-flow left ventricular assist devices (CF-LVAD) and hypertension is a significant risk factor for stroke, but the association between blood pressure and stroke in LVAD patients is not well characterized.</AbstractText>We identified 275 consecutiv... |
11,149 | Cardiac function in types II and III spinal muscular atrophy: should we change standards of care? | In the last years, there has been increasing evidence of cardiac involvement in spinal muscular atrophy (SMA). Autonomic dysfunction has been reported in animal models and in several patients with types I and III SMA, these findings raising the question whether heart rate should be routinely investigated in all SMA pat... |
11,150 | [Anomalous origin of the left coronary artery from the pulmonary artery in infants: clinical features and the perioperative treatment strategies]. | To investigate the clinical features and individualized treatment strategies for infants with anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA).</AbstractText>Data of 25 less than 1-year-old infants with ALCAPA who presented at Guangdong Cardiovascular Institute between 2006 and 2013 were ... |
11,151 | Echocardiographic and clinical factors related to paravalvular leak incidence in low-gradient severe aortic stenosis patients post-transcatheter aortic valve implantation. | Paravalvular leak (PVL) following transcatheter aortic valve implantation (TAVI) is associated with poor outcomes. The association of clinical and echocardiographic parameters in the occurrence of even mild PVL in patients with low-gradient severe aortic stenosis (LGSAS) after TAVI and predictors of all-cause mortality... |
11,152 | Extracorporeal membrane oxygenation rewarming in the ED: an opportunity for success. | On average, approximately 1300 Americans die of hypothermia each year. Although accidental hypothermia is commonly associated with severely cold regions or mountain accident victims, hypothermia also commonly occurs in urban centers. Contributing factors often include homelessness, mental illness, and substance abuse. ... |
11,153 | Five-year outcomes of catheter ablation in patients with atrial fibrillation and left ventricular systolic dysfunction. | Catheter ablation of atrial fibrillation (AF) is an established therapy for symptomatic patients. The long-term efficacy and impact of catheter ablation among patients with severe systolic heart failure (SHF) requires additional study to understand if outcomes achieved at 1 year are maintained and mechanisms of AF recu... |
11,154 | Epidemiology and outcome of adult out-of-hospital cardiac arrest of non-cardiac origin in Osaka: a population-based study. | To evaluate epidemiological characteristics of out-of-hospital cardiac arrests (OHCAs) by detailed non-cardiac cause and factors associated with the outcomes after OHCAs of non-cardiac origin.</AbstractText>A prospective, population-based observational study.</AbstractText>The Utstein Osaka Project.</AbstractText>14,16... |
11,155 | [Relationship between E/Em ratio and exercise capacity in patients with atrial fibrillation]. | To explore the relationship between the ratio of early diastolic transmitral velocity to early diastolic mitral annular velocity (E/Em) and exercise capacity in patients with atrial fibrillation.</AbstractText>A total of 94 consecutive patients with non-valvular atrial fibrillation and preserved left ventricular ejecti... |
11,156 | The mechanisms of calcium cycling and action potential dynamics in cardiac alternans. | Alternans is a risk factor for cardiac arrhythmia, including atrial fibrillation. At the cellular level alternans manifests as beat-to-beat alternations in contraction, action potential duration (APD), and magnitude of the Ca(2+) transient (CaT). Electromechanical and CaT alternans are highly correlated, however, it ha... |
11,157 | Early Repolarization Pattern Is Associated with Increased Risk of Early Ventricular Arrhythmias during Acute ST Segment Elevation Myocardial Infarction. | Early repolarization (ER) and acute ST segment elevation myocardial infarction (STEMI) are sharing the pathophysiology of J wave syndromes. It is speculated that early ventricular arrhythmias (VAs) during STEMI may be predisposed by ER. Our aim was to study the association between ER pattern and risk of VAs during acut... |
11,158 | Can global longitudinal strain predict reduced left ventricular ejection fraction in daily echocardiographic practice? | Transthoracic echocardiography (TTE) is the most commonly used method for measuring left ventricular ejection fraction (LVEF), but its reproducibility remains a matter of controversy. Speckle tracking echocardiography assesses myocardial deformation and left ventricular systolic function by measuring global longitudina... |
11,159 | Percutaneous bi-atrial extracorporeal membrane oxygenation for acute circulatory support in advanced heart failure. | Veno-arterial extracorporeal membrane oxygenation (VA-ECMO) may improve survival after cardiac arrest by providing cardiopulmonary support. However, VA-ECMO increases left ventricular (LV) afterload, which can promote progressive LV distension and often requires a secondary approach to reduce LV pressure and volume in ... |
11,160 | Outcomes in patients with high-degree atrioventricular block as the initial manifestation of cardiac sarcoidosis. | Although high-degree atrioventricular block (AVB) is a common initial manifestation of cardiac sarcoidosis, little is known about the outcomes. The aim of this study was to assess outcomes in patients with AVB as an initial manifestation of cardiac sarcoidosis compared with those in patients with ventricular tachyarrhy... |
11,161 | Massive electrical storm at disease onset in a patient with Brugada syndrome. | Brugada syndrome (BrS) is a genetic arrhythmogenic disease characterized by ST-segment elevations in the right precordial leads of the electrocardiogram (ECG). These ECG changes may be concealed and BrS may present with electrical storm characterized by recurrent ventricular tachycardia and fibrillation.</AbstractText>... |
11,162 | Intravascular versus surface cooling speed and stability after cardiopulmonary resuscitation. | Mild therapeutic hypothermia (MTH) is used to limit neurological injury and improve survival after cardiac arrest (CA) and cardiopulmonary resuscitation, but the optimal mode of cooling is controversial. We therefore compared the effectiveness of MTH using invasive intravascular or non-invasive surface cooling with tem... |
11,163 | Sodium nitroprusside-enhanced cardiopulmonary resuscitation facilitates intra-arrest therapeutic hypothermia in a porcine model of prolonged ventricular fibrillation. | The aim of this study was to assess the effect of sodium nitroprusside-enhanced cardiopulmonary resuscitation on heat exchange during surface cooling. We hypothesized that sodium nitroprusside-enhanced cardiopulmonary resuscitation would decrease the time required to reach brain temperature less than 35°C compared... |
11,164 | Right ventricular dysfunction, but not tricuspid regurgitation, is associated with outcome late after left heart valve procedure. | Significant tricuspid regurgitation (TR) late after left heart valve procedure is frequent and associated with increased morbidity. Surgical correction carries a significant mortality risk, whereas the impact of TR on survival in these patients is unclear.</AbstractText>This study sought to assess the impact of signifi... |
11,165 | Incidence, predictors, and prognostic impact of late bleeding complications after transcatheter aortic valve replacement. | The incidence and prognostic impact of late bleeding complications after transcatheter aortic valve replacement (TAVR) are unknown.</AbstractText>The aim of this study was to identify the incidence, predictors, and prognostic impact of major late bleeding complications (MLBCs) (≥30 days) after TAVR.</AbstractTex... |
11,166 | Clinical phenotype and outcome of hypertrophic cardiomyopathy associated with thin-filament gene mutations. | Mild hypertrophy but increased arrhythmic risk characterizes the stereotypic phenotype proposed for hypertrophic cardiomyopathy (HCM) caused by thin-filament mutations. However, whether such clinical profile is different from more prevalent thick-filament-associated disease is unresolved.</AbstractText>This study aimed... |
11,167 | [The cardiological evaluation in patients undergoing to Day Surgery: when is indicated]. | Guidelines established preoperative cardiac management of the patient undergoing non-cardiac surgery in hospitalization. Regarding the patients undergoing the surgery in DS, the management is not defined. Aim of this study was to evaluate the appropriateness of the cardiological consultation requested by the patients u... |
11,168 | Age, sex, and hospital factors are associated with the duration of cardiopulmonary resuscitation in hospitalized patients who do not experience sustained return of spontaneous circulation. | Variability in the duration of attempted in‐hospital cardiopulmonary resuscitation (CPR) is high, but the factors influencing termination of CPR efforts are unknown.</AbstractText>We examined the association between patient and hospital characteristics and CPR duration in 45 500 victims of in‐hospital car... |
11,169 | [Outcome of myocardial revascularisation in patients fifty years old and younger]. | Most patients that undergo coronary artery bypass grafting (CABG) are around 70 years of age when operated on. We investigated the outcome of CABG in patients 50 years and younger, focusing on early complications, operative mortality and long-term survival.</AbstractText>A retrospective study on 1626 patients that unde... |
11,170 | Attitudes and preferences for the clinical management of hypertension and hypertension-related cardiac disease in general practice: results of the Italian Hypertension and Heart Survey. | The aim of this study was to evaluate attitudes and preferences for the clinical management of hypertensive patients with cardiac organ disease, including left ventricular hypertrophy (LVH) and coronary artery disease (CAD), in Italy. A predefined 15-item questionnaire was anonymously administered to a large community ... |
11,171 | [Ventricular fibrillation following hyperventilation and apneic underwater swimming]. | This is a case study of an 18 years old boy who lost consciousness during apneic underwater swimming. When cardiopulmonary resuscitation was initiated ventricular fibrillation was seen on cardiac monitoring. Bradycardia, atrial and ventricular premature beats are a known response to hyperventilation and apneic underwat... |
11,172 | Pulsatile venoarterial perfusion using a novel synchronized cardiac assist device augments coronary artery blood flow during ventricular fibrillation. | Patients with cardiogenic shock have a very high mortality. Here we report the first use of a percutaneous pulsatile cardiac assist device, based on a diagonal pump synchronized with the heart cycle by means of an electrocardiographic signal in adult pigs. Eight domestic pigs underwent mandatory ventilation. During sin... |
11,173 | Cheating the CHA2DS2-VASc Score: Thromboembolism in Apical Hypertrophic Cardiomyopathy. | Atrial fibrillation increases the risk of systemic thromboembolism in general and stroke in particular. Not all patients who develop atrial fibrillation are at significantly heightened risk of thromboembolic complications, however, with the development of risk scoring systems aiding clinicians in determining whether fo... |
11,174 | Protective effect of shen-fu injection on neuronal mitochondrial function in a porcine model of prolonged cardiac arrest. | Background. Shen-Fu injection (SFI) following cardiac arrest exhibits neurological effects, but its effect on neurological dysfunction is unclear. This study sought to investigate the protective effect of SFI on nerve cells in a porcine model of cardiac arrest. Methods. After eight minutes of untreated ventricular fibr... |
11,175 | Detection of occult paroxysmal atrial fibrillation. | This work introduces a novel approach to the detection of brief episodes of paroxysmal atrial fibrillation (PAF). The proposed detector is based on four parameters which characterize RR interval irregularity, P-wave absence, f-wave presence, and noise level, of which the latter three are determined from a signal produc... |
11,176 | Dilated, arrhythmogenic cardiomyopathy in emery-dreifuss muscular dystrophy due to the emerin splice-site mutation c.449 + 1G>A. | Cardiac involvement in X-linked Emery-Dreifuss muscular dystrophy (X-EDMD) usually includes arrhythmias but not dilative cardiomyopathy (dCMP). Here, we report an X-EDMD patient with severe dCMP and life-threatening ventricular arrhythmias associated with other phenotypic features unusual for X-EDMD.</AbstractText>A 46... |
11,177 | Genetically engineered SCN5A mutant pig hearts exhibit conduction defects and arrhythmias. | SCN5A encodes the α subunit of the major cardiac sodium channel Na(V)1.5. Mutations in SCN5A are associated with conduction disease and ventricular fibrillation (VF); however, the mechanisms that link loss of sodium channel function to arrhythmic instability remain unresolved. Here, we generated a large-animal mo... |
11,178 | A statistical index for early diagnosis of ventricular arrhythmia from the trend analysis of ECG phase-portraits. | In this paper, we propose a novel statistical index for the early diagnosis of ventricular arrhythmia (VA) using the time delay phase-space reconstruction (PSR) technique, from the electrocardiogram (ECG) signal. Patients with two classes of fatal VA-with preceding ventricular premature beats (VPBs) and with no VPBs-ha... |
11,179 | Endomyocardial biopsy technique for orthotopic heart transplantation and cardiac stem-cell harvesting. | Orthotopic heart transplantation (OHT) is performed using the bicaval and pulmonary venous anastomoses or the standard (biatrial) anastomoses. The special considerations of endomyocardial biopsy after OHT using the bicaval technique, and after myocardial infarction for harvesting of cardiac stem cells, have not been de... |
11,180 | Smokeless tobacco, sport and the heart. | Smokeless tobacco (snuff) is a finely ground or shredded tobacco that is sniffed through the nose or placed between the cheek and gum. Chewing tobacco is used by putting a wad of tobacco inside the cheek. Smokeless tobacco is widely used by young athletes to enhance performance because nicotine improves some aspects of... |
11,181 | [A combination of cardiac arrest and cerebral haemorrhage treated with extracorporeal membrane oxygenation]. | A 46-year-old, healthy woman with sudden hemiplegia and nausea suffered cardiac arrest during transport to the hospital. This was treated en route with LUCAS-2. A computed tomography ruled out cerebral haemorrhage, and an electricardiogramme showed inferior myocardial infarction. During percutaneous intervention the pa... |
11,182 | [Cardiac arrest with syndrome of apparent mineralocorticoid excess]. | Ventricular fibrillation is an unknown complication to the syndrome of apparent mineralocorticoid excess (SAME). This case report describes a young woman admitted with hypo-kalaemia and hypertension. Concentrations of both P-renin and P-aldosterone were low and urinary steroid metabolites revealed an abnormal excretion... |
11,183 | Preclinical evaluation of implantable cardioverter-defibrillator developed for magnetic resonance imaging use. | Many patients with an implantable cardioverter-defibrillator (ICD) have indications for magnetic resonance imaging (MRI). However, MRI is generally contraindicated in ICD patients because of potential risks from hazardous interactions between the MRI and ICD system.</AbstractText>The purpose of this study was to use pr... |
11,184 | Effects of renal denervation on atrial arrhythmogenesis. | Atrial fibrillation is the most common sustained arrhythmia and is associated with significant morbidity and mortality. In addition to mechanisms such as atrial stretch and atrial remodeling, the activity of the autonomic nervous system has also been suggested to contribute to the progression from paroxysmal to persist... |
11,185 | Full recovery case after 82 minutes out-of-hospital cardiac arrest: importance of chain of survival and predicting outcome. | A middle age man underwent immediate cardiopulmonary resuscitation (CPR) for ventricular fibrillation (VF) occurred in an ambulance. After arrival in a regional hospital, return of spontaneous circulation (ROSC) was achieved 82 minutes after the collapse. He was in coma even three hours after ROSC. So, he was transferr... |
11,186 | Probabilistic Linkage of Prehospital and Outcomes Data in Out-of-hospital Cardiac Arrest. | Lack of longitudinal patient outcome data is an important barrier in emergency medical services (EMS) research. We aimed to demonstrate the feasibility of linking prehospital data from the California EMS Information Systems (CEMSIS) database to outcomes data from the California Office of Statewide Health Planning and D... |
11,187 | Simulation Methods and Validation Criteria for Modeling Cardiac Ventricular Electrophysiology. | We describe a sequence of methods to produce a partial differential equation model of the electrical activation of the ventricles. In our framework, we incorporate the anatomy and cardiac microstructure obtained from magnetic resonance imaging and diffusion tensor imaging of a New Zealand White rabbit, the Purkinje str... |
11,188 | Randomized trial of a novel ACLS teaching tool: does it improve student performance? | Mounting evidence suggests that high-fidelity mannequin-based (HFMBS) and computer-based simulation are useful adjunctive educational tools for advanced cardiac life support (ACLS) instruction. We sought to determine whether access to a supplemental, online computer-based ACLS simulator would improve students' performa... |
11,189 | Hydrogen sulfide inhalation decreases early blood-brain barrier permeability and brain edema induced by cardiac arrest and resuscitation. | The effects of hydrogen sulfide (H2S) on blood-brain barrier (BBB) and brain edema after cardiac arrest (CA) and cardiopulmonary resuscitation (CPR) remain poorly understood. We investigated the effects of exogenous 80-p.p.m. H2S gas on BBB, brain water content, neurologic outcome, and survival rate after CA and CPR. C... |
11,190 | Differential survival for men and women from out-of-hospital cardiac arrest varies by age: results from the OPALS study. | The effect of sex on survival in out-of-hospital cardiac arrest (OHCA) is controversial. Some studies report more favorable outcomes in women, while others suggest the opposite, citing disparities in care. Whether sex predicts differential age-specific survival is still uncertain.</AbstractText>The objective was to stu... |
11,191 | Prognostic value of high-sensitivity troponin T levels in patients with ventricular arrhythmias and out-of-hospital cardiac arrest: data from the prospective FINNRESUSCI study. | Myocardial dysfunction is common after out-of-hospital cardiac arrest (OHCA) and high-sensitivity troponin T (hs-TnT) levels may provide incremental prognostic information to established risk indices.</AbstractText>A total of 155 patients with OHCA and a shockable rhythm (98% ventricular fibrillation; OHCA-VF/VT) had b... |
11,192 | Atrial fibrillation induced by commotio cordis secondary to a blunt chest trauma in a teenage boy. | Low-energy blunt chest trauma can cause commotio cordis and ventricular fibrillation (VF) in otherwise healthy young individuals. If the chest wall impact occurs during a narrow vulnerable window of ventricular repolarization, the generated premature ventricular impulse can lead to VF and sudden death. Atrial fibrillat... |
11,193 | Patient discomfort following catheter ablation and rhythm device surgery. | Proper management of post-interventional pain relieves unwarranted patient distress and enhances patient satisfaction. There have been only a limited number of investigations into patient discomfort following electrophysiological interventions. This study aims to quantify pain after interventional procedures, including... |
11,194 | Preexisting atrial fibrillation and cardiac complications after liver transplantation. | Atrial fibrillation (AF) is the most common cardiac arrhythmia, and it is associated with increased cardiovascular morbidity and all-cause mortality. Our aim was to determine the impact of preexisting AF on patients undergoing liver transplantation (LT). A retrospective case-control study was performed. Records from pa... |
11,195 | The ventricular fibrillation waveform approach to direct postshock chest compressions in a swine model of VF arrest. | In retrospective swine and human investigations of ventricular fibrillation (VF) cardiac arrest, the amplitude-spectral area (AMSA), determined from the VF waveform, can predict defibrillation and a return of spontaneous circulation (ROSC).</AbstractText>We hypothesized that an algorithm using AMSA in real time to dire... |
11,196 | Cardiac resynchronisation therapy in patients with atrioventricular nodal disease and reduced ejection fraction - can we afford it? | Recent pacing guidelines from the European Society of Cardiology recommend cardiac resynchronisation therapy (CRT) in patients with an atrioventricular (AV) nodal pacing indication and reduced ejection fraction (EF). However, concerns over added expenditure may limit its widespread implementation. We investigate the po... |
11,197 | Atrial Fibrillation and <i>SCN5A</i> Variants. | Although atrial fibrillation (AF) is clinically and genetically a highly heterogeneous disease, recent studies suggest that the arrhythmia may arise because of interactions between genetic and acquired risk factors - the so called "double-hit" hypothesis. Genome-wide association studies have identified common AF suscep... |
11,198 | Effectiveness of atrial antitachycardia pacing in the treatment of paroxysmal atrial fibrillation in patients with pacemakers. | The aim of this study was to assess the effectiveness of atrial antitachycardia pacing (ATP) in the conversion of atrial tachyarrhythmia episodes, and its impact in reducing arrhythmic burden.</AbstractText>We performed a retrospective study in the pacing laboratory of a district hospital of 57 consecutive patients imp... |
11,199 | Characteristics and outcomes of patients with advanced chronic systolic heart failure receiving care at the Veterans Affairs versus other hospitals: insights from the Beta-blocker Evaluation of Survival Trial (BEST). | Characteristics and outcomes of patients with heart failure and reduced ejection fraction receiving care at Veterans Affairs (VA) versus non-VA hospitals have not been previously reported.</AbstractText>In the randomized controlled Beta-blocker Evaluation of Survival Trial (BEST; 1995-1999), of the 2707 (bucindolol=135... |
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