Unnamed: 0 int64 0 2.34M | titles stringlengths 5 21.5M | abst stringlengths 1 21.5M |
|---|---|---|
10,200 | Sudden Death After Transcatheter Aortic Valve Implantation. Are Bradyarrhythmias Always The Cause? | Transcatheter Aortic-Valve Implantation (TAVI) is considered to be highly effective in the treatment of high-risk patients with severe aortic stenosis. After TAVI, the rate of pacemaker implantation is 6.5%-40%. Some reports of sudden death after TAVI are mostly attributed to bradyarrhythmias. We report the case of thr... |
10,201 | Heart Failure With Reduced Ejection Fraction And A Narrow QRS Complex: Combination Of A Subcutaneous Defibrillator With Cardiac Contractility Modulation. | Cardiac contractility modulation (CCM) is a relatively new electrical therapy for heart failure patients with reduced ejection fraction. The majority of patients eligible for CCM will also need an implantable cardioverter-defibrillator (ICD). To-date, three pacing electrodes are mandatory for CCM therapy because the cu... |
10,202 | A Novel Approach to Improve Time to First Shock in Prehospital STEMI Complicated by Ventricular Fibrillation. | Lethal cardiac arrhythmias such as ventricular fibrillation and pulseless ventricular tachycardia (VF/pVT) complicate up to 6% of all out-of-hospital STEMIs. Typically, paramedics respond to this by applying defibrillation pads and delivering a shock as soon as possible. A recently introduced "pads-on" protocol directe... |
10,203 | Advances in the pharmacologic treatment of ventricular arrhythmias. | Despite many advances in nonpharmacologic management of ventricular arrhythmias, antiarrhythmic drugs remain important in both the acute conversion and chronic prevention of ventricular arrhythmias.</AbstractText>Key trials related to antiarrhythmic drug use are reviewed, emphasizing the impact of recent discoveries. S... |
10,204 | A review on atrioventricular junction ablation and pacing for heart rate control of atrial fibrillation. | Atrioventricular junction ablation with permanent pacemaker implantation is a highly effective treatment approach in patients with atrial fibrillation and high ventricular rates resistant to other treatment modalities, especially in the elderly or those with severe comorbidities. Compared with pharmacological therapy a... |
10,205 | Is cardiac resynchronisation therapy feasible, safe and beneficial in the very elderly? | To evaluate whether cardiac resynchronisation therapy (CRT) implantation was feasible and safe in octogenarians and the association with symptoms.</AbstractText>Consecutive patients undergoing CRT implantation were recruited from two UK centers. Patients grouped according to age: < 80 & ≥ 80 years. B... |
10,206 | Defective recovery of QT dispersion following transcatheter aortic valve implantation: frequency, predictors and prognosis. | Corrected QT dispersion (cQTD) has been correlated with non-uniform ventricular repolarisation and increased mortality. In patients with aortic stenosis, cQTD has been shown improved after surgical valve replacement, but the effects of transcatheter aortic valve implantation (TAVI) are unknown. Therefore, we sought to ... |
10,207 | Initial experience of subcutaneous implantable cardioverter defibrillators in Singapore: a case series and review of the literature. | Transvenous implantable cardioverter defibrillators are a type of implantable cardiac device. They are effective at reducing total and arrhythmic mortality in patients at risk of sudden cardiac death. Subcutaneous implantable cardioverter defibrillators (S-ICDs) are a new alternative that avoids the disadvantages of tr... |
10,208 | Sudden Cardiac Death Despite a Functional Cardioverter-Defibrillator: The Case for Early and Aggressive Therapy for Ventricular Tachycardia in Selected Patients. | We present three cases within 11 months at a single institution of sustained VT that fell below the programmed detection rate of the patients' implantable cardioverter-defibrillators (ICDs), two of which continued until converting to an agonal VF that did not meet criteria for detection, and a third case that could not... |
10,209 | Brugada syndrome: clinical presentation and genotype-correlation with magnetic resonance imaging parameters. | The purpose of the this study was to evaluate a possible genotype-phenotype correlation in BrS patients and to analyze possible associations with clinical events in affected patients. SCN5A gene encodes the alpha-subunit of the voltage-gated sodium channel NaV1.5. Its mutations are associated with a broad spectrum of h... |
10,210 | Effect of regulating airway pressure on intrathoracic pressure and vital organ perfusion pressure during cardiopulmonary resuscitation: a non-randomized interventional cross-over study. | The objective of this investigation was to evaluate changes in intrathoracic pressure (Ppl), airway pressure (Paw) and vital organ perfusion pressures during standard and intrathoracic pressure regulation (IPR)-assisted cardiopulmonary resuscitation (CPR).</AbstractText>Multiple CPR interventions were assessed, includi... |
10,211 | Right coronary cusp as a new window of ablation for pilsicainide-induced ventricular premature contractions in a patient with Brugada syndrome. | A previous study demonstrated that ventricular premature contractions (VPCs) and ventricular fibrillation (VF) are provoked during sodium channel blocker challenge tests in Brugada syndrome (BrS) patients (Morita et al., J Am Coll Cardiol 42:1624-1631, 2003). The right ventricular outflow tract (RVOT) is a major arrhyt... |
10,212 | A focused investigation of expedited, stack of three shocks versus chest compressions first followed by single shocks for monitored ventricular fibrillation/ventricular tachycardia cardiopulmonary arrest in an in-hospital setting. | In cases of in-hospital-witnessed ventricular fibrillation/ventricular tachycardia (VF/VT) arrest, it is unclear whether cardiopulmonary resuscitation prior to defibrillation attempt or expedited stacked defibrillation attempt is superior.</AbstractText>Retrospective, observational study of all admitted patients with c... |
10,213 | Spanish Catheter Ablation Registry. 14th Official Report of the Spanish Society of Cardiology Working Group on Electrophysiology and Arrhythmias (2014). | This report presents the findings of the 2014 Spanish Catheter Ablation Registry.</AbstractText>For data collection, each center was allowed to choose freely between 2 systems: retrospective, requiring the completion of a standardized questionnaire, and prospective, involving reporting to a central database.</AbstractT... |
10,214 | Echocardiographic diastolic function assessment is of modest utility in patients with persistent and longstanding persistent atrial fibrillation. | Detection of concurrent diastolic dysfunction (DD) may be beneficial in patients with persistent and longstanding persistent atrial fibrillation (AF). The role of transthoracic echocardiography (TTE) in assessing DD in patients with AF has not been well characterized. We sought to determine the utility of TTE in detect... |
10,215 | Pharmacological treatment of cardiac glycoside poisoning. | Cardiac glycosides are an important cause of poisoning, reflecting their widespread clinical usage and presence in natural sources. Poisoning can manifest as varying degrees of toxicity. Predominant clinical features include gastrointestinal signs, bradycardia and heart block. Death occurs from ventricular fibrillation... |
10,216 | Comparative Analysis of Methods to Induce Myocardial Infarction in a Closed-Chest Rabbit Model. | To develop a rabbit model of closed-chest catheter-induced myocardial infarction. Background. Limitations of rodent and large animal models justify the search for clinically relevant alternatives.</AbstractText>Microcatheterization of the heart was performed in 47 anesthetized 3-4 kg New Zealand rabbits to test ... |
10,217 | Spontaneous Coronary Artery Dissection with Cardiac Tamponade. | Spontaneous coronary artery dissection is a rare cause of acute coronary syndrome. Clinical presentation ranges from chest pain alone to ST-segment-elevation myocardial infarction, ventricular fibrillation, and sudden death. The treatment of patients with spontaneous coronary artery dissection is challenging because th... |
10,218 | Brugada Syndrome Presenting as Polymorphic Ventricular Tachycardia-Ventricular Fibrillation Lasting 94 Seconds Recorded on an Ambulatory Monitor. | Cardiac arrhythmias are common causes of syncope. Brugada syndrome is an uncommon but serious genetic arrhythmia disorder that can be unmasked by medicines causing sodium channel blockade.</AbstractText>This report documents a case of Brugada syndrome and polymorphic ventricular tachycardia-ventricular fibrillation not... |
10,219 | Effect of ICD Therapies on Mortality in the OMNI Trial. | Analyses from primary prevention trials on implantable cardioverter defibrillator (ICD) therapy have shown an association between shocks and increased mortality. Recent data suggest a similar association with antitachycardia pacing (ATP).</AbstractText>The OMNI study is an observational study of pacemaker and ICD use. ... |
10,220 | Long-term prognosis of early repolarization with J-wave and QRS slur patterns on the resting electrocardiogram: a cohort study. | The prognostic value of early repolarization with J waves and QRS slurs remains controversial. Although these findings are more prevalent in patients with idiopathic ventricular fibrillation, their ability to predict cardiovascular death has varied across studies.</AbstractText>To test the hypothesis that J waves and Q... |
10,221 | Lungs exposed to 1 hour warm ischemia without heparin before harvesting might be suitable candidates for transplantation. | The limiting factor for lung transplantation is the lack of donor organs. The usage of lungs from donation after cardiac death (DCD) would dramatically increase donor availability. In the present paper we wanted to investigate lungs exposed to 1 h of warm ischemia without heparin followed by flush-perfusion and cold st... |
10,222 | Potassium Channel Blockade Enhances Atrial Fibrillation-Selective Antiarrhythmic Effects of Optimized State-Dependent Sodium Channel Blockade. | The development of effective and safe antiarrhythmic drugs for atrial fibrillation (AF) rhythm control is an unmet clinical need. Multichannel blockers are believed to have advantages over single-channel blockers for AF, but their development has been completely empirical to date. We tested the hypothesis that adding K... |
10,223 | [Corrigendum] Effects of rotigaptide (ZP123) on connexin43 remodeling in canine ventricular fibrillation. | Mol Med Rep 12: [Related article:] 5746–5752, 2015; DOI: 10.3892/mmr.2015.4193 Following the publication of this article on-line ahead of print, an interested reader drew to our attention some anomalies associated with the presentation of Fig. 1. In the lower panel, the fourth image from the left resembled a mir... |
10,224 | Practical Management Guide for Clinicians Who Treat Patients with Amiodarone. | Amiodarone, an iodinated benzofuran derivative with Class I, II, III, and IV antiarrhythmic properties, is the most commonly used antiarrhythmic drug used to treat supraventricular and ventricular arrhythmias. Appropriate use of this drug, with its severe and potentially life-threatening adverse effects, requires an es... |
10,225 | A novel intra-operative, high-resolution atrial mapping approach. | A new technique is demonstrated for extensive high-resolution intra-operative atrial mapping that will facilitate the localization of atrial fibrillation (AF) sources and identification of the substrate perpetuating AF.</AbstractText>Prior to the start of extra-corporal circulation, a 8 × 24-electrod... |
10,226 | Effects of Oxygen Concentrations on Postresuscitation Myocardial Oxidative Stress and Myocardial Function in a Rat Model of Cardiopulmonary Resuscitation. | Lipid peroxidation induced by free-radical species plays a prominent role in myocardial injury following ischemia and reperfusion. However, there is a lack of data in different oxygen concentrations on myocardial lipid peroxidation during the early phase of reperfusion. In this study, we investigated whether ventilatio... |
10,227 | Galectin-3 levels in patients with hypertrophic cardiomyopathy and its relationship with left ventricular mass index and function. | Cardiac fibrosis is an important contributor to adverse left ventricular (LV) remodeling and arrhythmias in patients with hypertrophic cardiomyopathy (HCM). Galectin-3 (Gal-3) is a novel marker of cardiac fibrosis and inflammation. In this study, we investigated Gal-3 levels in patients with HCM and controls and assess... |
10,228 | Mild hypothermia preserves cerebral cortex microcirculation after resuscitation in a rat model of cardiac arrest. | Mild hypothermia improves the outcomes of comatose patients after cardiac arrest. Its neuroprotective mechanism is not fully understood. We investigated the effects of mild hypothermia on cerebral cortex microcirculation and cerebral oxygen extraction ratio.</AbstractText>Twenty-five rats were randomized into the hypot... |
10,229 | Pulse Oximetry: A Non-Invasive, Novel Marker for the Quality of Chest Compressions in Porcine Models of Cardiac Arrest. | Pulse oximetry, which noninvasively detects the blood flow of peripheral tissue, has achieved widespread clinical use. We have noticed that the better the quality of cardiopulmonary resuscitation (CPR), the better the appearance of pulse oximetry plethysmographic waveform (POP). We investigated whether the area under t... |
10,230 | Atrial myocardial infarction: A tale of the forgotten chamber. | It has been almost a century since atrial infarction was first described, yet data describing its significance remain limited. To date, there are still no universally accepted criteria for the diagnosis of atrial infarction. Atherosclerosis is the leading cause of atrial infarction but it has also been described in cor... |
10,231 | [Early repolarization in ECG. Definition, prevalence and prognostic significance]. | Early repolarization defined as antero-lateral ST-segment elevation exists in 1-2 % of the general population and has been considered a benign ECG finding for decades. However, early repolarization, defined as infero-lateral J-waves, has in recent studies been associated with an increased - albeit low - risk of sudden ... |
10,232 | A Case of 5-Fluorouracil-Induced Cardiac Arrest. | Coronary artery vasospasm after administration of fluorouracil (5-FU) is a rare complication. Commonly presenting as chest pain during or shortly after 5-FU infusions, vasospasm can place patients at risk for ventricular dysrhythmia, myocardial ischemia, and infarction. Although not fully understood, any 5-FU cardiotox... |
10,233 | [Mechanical cardiac-assist devices in ST segment elevation myocardial infarction]. | A 49-year-old woman was admitted for an anterior ST segment elevation myocardial infarction (STEMI). At hospital arrival, she presented with cardiogenic shock. An immediate coronary angiogram showed an occluded ostial left anterior descending artery. During percutaneous coronary intervention (PCI), ventricular fibrilla... |
10,234 | Kounis Syndrome Caused by Chronic Autoimmune Urticaria: A Case Report. | Coincidental occurrence of acute coronary syndrome with symptoms associated with an allergic reaction is called Kounis syndrome (KS). Although KS has been recognized for several years and has been reported in many documents, KS induced by chronic autoimmune urticaria (CAU), to the authors' knowledge, has not been repor... |
10,235 | ST-Segment Elevation and Fractionated Electrograms in Brugada Syndrome Patients Arise From the Same Structurally Abnormal Subepicardial RVOT Area but Have a Different Mechanism. | Brugada syndrome (BrS) is characterized by a typical ECG pattern. We aimed to determine the pathophysiologic basis of the ST-segment in the BrS-ECG with data from various epicardial and endocardial right ventricular activation mapping procedures in 6 BrS patients and in 5 non-BrS controls.</AbstractText>In 7 patients (... |
10,236 | Optimizing clinical outcomes of transcatheter aortic valve implantation patients with comorbidities. | Transcatheter aortic valve implantation (TAVI) has revolutionized the management of high-risk or inoperable patients presenting with symptomatic severe aortic stenosis (AS). There are several factors to consider to optimize patient outcomes from TAVI. Before TAVI, patient selection is key and an understanding the effec... |
10,237 | Ventricular antitachycardia pacing therapy in patients with heart failure implanted with a cardiac resynchronization therapy defibrillator device: Efficacy, safety, and impact on mortality. | Cardiac resynchronization therapy defibrillator can terminate ventricular tachycardia (VT) and fast VT (FVT) via antitachycardia pacing (ATP).</AbstractText>We evaluated efficacy and safety of ATP, whether ATP induces ventricular arrhythmias after inappropriate ATP or atrial fibrillation (AF) after appropriate ATP, and... |
10,238 | Incidence, Causes, and Predictors of Early (≤30 Days) and Late Unplanned Hospital Readmissions After Transcatheter Aortic Valve Replacement. | The aim of this study was to determine the incidence, causes, and predictors of unplanned hospital readmissions after transcatheter aortic valve replacement (TAVR).</AbstractText>Data regarding unplanned hospital readmissions after TAVR in a real-world all-comers population are scarce.</AbstractText>A total of 720 cons... |
10,239 | Arrhythmogenic Phenotype in Dilated Cardiomyopathy: Natural History and Predictors of Life-Threatening Arrhythmias. | Patients with dilated cardiomyopathy (DCM) may present with ventricular arrhythmias early in the disease course, unrelated to the severity of left ventricular dysfunction. These patients may be classified as having an arrhythmogenic DCM (AR-DCM). We investigated the phenotype and natural history of patients with AR-DCM... |
10,240 | An Effective and Reproducible Model of Ventricular Fibrillation in Crossbred Yorkshire Swine (Sus scrofa) for Use in Physiologic Research. | Transcutaneous electrical induction (TCEI) has been used to induce ventricular fibrillation (VF) in laboratory swine for physiologic and resuscitation research. Many studies do not describe the method of TCEI in detail, thus making replication by future investigators difficult. Here we describe a detailed method of ele... |
10,241 | Part 3: Adult Basic Life Support and Automated External Defibrillation: 2015 International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science With Treatment Recommendations. | This review comprises the most extensive literature search and evidence evaluation to date on the most important international BLS interventions, diagnostics, and prognostic factors for cardiac arrest victims. It reemphasizes that the critical lifesaving steps of BLS are (1) prevention, (2) immediate recognition and ac... |
10,242 | Lead Integrity Alert Is Useful for Assessment of Performance of Biotronik Linox Leads. | Medtronic's Lead Integrity Alert (LIA) software algorithm is useful for detecting abnormal parameters across various ICD-lead families. However, its utility in the assessment of the Biotronik Linox™ family of high-voltage (HV) leads is unknown.</AbstractText>We conducted a retrospective cohort study to assess th... |
10,243 | Arrhythmias in Adult Congenital Heart Disease: Diagnosis and Management. | Cardiac arrhythmias are a major source of morbidity and mortality in adults with CHD. A multidisciplinary approach in a center specializing in the care of ACHD is most likely to have the expertise needed provide this care. Knowledge of the underlying anatomy, mechanism of arrhythmia, and potential management strategies... |
10,244 | Risk factors predictive of atrial fibrillation after lung cancer surgery. | Postoperative atrial fibrillation (POAF), the most frequent arrhythmia after pulmonary resection, is a cause of both morbidity and mortality. Being able to predict the risk of POAF before surgery would help us evaluate the surgical risk and plan prophylaxis. We investigated the reported preoperative risk factors associ... |
10,245 | Comparison Between 30:1 and 30:2 Compression-to-ventilation Ratios for Cardiopulmonary Resuscitation: Are Two Ventilations Necessary? | Controversy is continuing over the need for ventilation and the optimal compression-ventilation (CV) ratio during cardiopulmonary resuscitation (CPR). The aim of this study was to comparatively elucidate the effect on hemodynamics and arterial oxygen saturation of a single ventilation relative to two consecutive ventil... |
10,246 | Is the Preoperative Administration of Amiodarone or Metoprolol More Effective in Reducing Atrial Fibrillation: After Coronary Bypass Surgery? | This study examined the influence of preoperative administration of amiodarone and metoprolol in preventing postoperative atrial fibrillation (AF) after coronary artery bypass grafting (CABG) surgery.The study comprised 251 patients who underwent CABG surgery at our hospital between January 2012 and May 2014. The patie... |
10,247 | Exercise-related sudden cardiac arrest in London: incidence, survival and bystander response. | The study aimed to (1) establish the incidence of exercise-related sudden cardiac arrest (SCA) in London, (2) investigate survival from exercise-related SCA and (3) examine factors related to survival.</AbstractText>This retrospective observational study examined 2 years' data from the London Ambulance Service (... |
10,248 | Inappropriate combination of warfarin and aspirin. | A combination of warfarin and aspirin is associated with increased bleeding compared with warfarin monotherapy. The aim of the study was to investigate the incidence and appropriateness of the combination of warfarin and aspirin in patients with atrial fibrillation (AF) or mechanical heart valve (MHV).</AbstractText>Th... |
10,249 | [Preoperative Risk Factors; Hypertension and Arrhythmias]. | Generally speaking, hypertension and arrhythmias are risk factors affecting anesthetic management and postoperative prognosis. However, the most recent ACC/AHA clinical guideline does not require the preoperative strict control of arterial pressure for patients with hypertension, since there has been not any definite e... |
10,250 | The effects of proximal and distal routes of intraosseous epinephrine administration on short-term resuscitative outcome measures in an adult swine model of ventricular fibrillation: a randomized controlled study. | It is unknown if the anatomical distance of intraosseous (i.o.) epinephrine injection from the heart affects resuscitative outcome. The purpose of this study was to explore the relationships between the anatomical distance of i.o. epinephrine injection and measures of resuscitative outcome in an adult swine model of ve... |
10,251 | First clinical trial of specific IKACh blocker shows no reduction in atrial fibrillation burden in patients with paroxysmal atrial fibrillation: pacemaker assessment of BMS 914392 in patients with paroxysmal atrial fibrillation. | To assess the efficacy of BMS 914392 on atrial fibrillation (AF) burden reduction in 20 patients with pacemakers and paroxysmal atrial fibrillation (PAF). BMS 914392 is a potent, selective, oral inhibitor of the IKACh current and has been shown to suppress AF, whilst having no effect on the ventricular refractory perio... |
10,252 | Fluid dynamics of heart valves during atrial fibrillation: a lumped parameter-based approach. | Atrial fibrillation (AF) consequences on the heart valve dynamics are usually studied along with a valvular disfunction or disease, since in medical monitoring, the two pathologies are often concomitant. Aim of the present work is to study, through a stochastic lumped-parameter approach, the basic fluid dynamics variat... |
10,253 | Ranolazine in Cardiac Arrhythmia. | Ranolazine utilization in the management of refractory angina has been established by multiple randomized clinical studies. However, there is growing evidence showing an evolving role in the field of cardiac arrhythmias. Multiple experimental and clinical studies have evaluated the role of ranolazine in prevention and ... |
10,254 | The positive frequency-dependent electrophysiological effects of the IKur inhibitor XEN-D0103 are desirable for the treatment of atrial fibrillation. | Selective inhibitors of Kv1.5 channels are being developed for the treatment of atrial fibrillation (AF).</AbstractText>The purpose of this study was to investigate the effects of the highly selective Kv1.5 inhibitor XEN-D0103 on human atrial action potentials (APs) at high excitation rates and to assess safety.</Abstr... |
10,255 | Discharge risk scoring method for predicting mortality in hospitalized chronic heart failure patients with severe systolic dysfunction. | Prognostic risk stratification in heart failure is crucial to guide clinical decision-making.The aim of our study was to develop a prognostic discharge risk score model to predict all-cause mortality for chronic heart failure patients with multiple co-morbidities and severe systolic dysfunction.</AbstractText>A multiva... |
10,256 | Early Coronary Angiography and Survival After Out-of-Hospital Cardiac Arrest. | Although out-of-hospital cardiac arrest is common because of acute myocardial infarction, it is unknown whether early coronary angiography is associated with improved survival in these patients.</AbstractText>Using data from the Cardiac Arrest Registry to Enhance Survival (CARES), we identified 4029 adult patients admi... |
10,257 | Predicting the Presence of an Acute Coronary Lesion Among Patients Resuscitated From Cardiac Arrest. | A mechanism to stratify patients resuscitated from a cardiac arrest according to the likelihood of an acute coronary lesion would have significant utility. We thus sought to develop and validate a risk prediction model for the presence of an acute coronary lesion among patients resuscitated from an arrest.</AbstractTex... |
10,258 | Survival After Ventricular Fibrillation Cardiac Arrest in the Sao Paulo Metropolitan Subway System: First Successful Targeted Automated External Defibrillator (AED) Program in Latin America. | Targeted automated external defibrillator (AED) programs have improved survival rates among patients who have an out-of-hospital cardiac arrest (OHCA) in US airports, as well as European and Japanese railways. The Sao Paulo (Brazil) Metro subway carries 4.5 million people per day. A targeted AED program was begun in th... |
10,259 | Etiology and Programming Effects on Shock Efficacy in ICD Recipients. | We sought to assess the efficacy of high-energy shocks to restore rhythm and predictors of success in patients with sustained ventricular arrhythmias and implantable cardioverter defibrillator (ICD).</AbstractText>Data from 162 patients included in the UMBRELLA study that experienced one or more episodes of ventricular... |
10,260 | The HVAD Left Ventricular Assist Device: Risk Factors for Neurological Events and Risk Mitigation Strategies. | The purpose of this study was to determine the risk factors for ischemic in hemorrhage cerebrovascular events in patients supported by the HeartWare ventricular assist device (HVAD).</AbstractText>Patients supported with left ventricular assist devices are at risk for both ischemic and hemorrhagic cerebrovascular event... |
10,261 | Arrhythmia-Induced Cardiomyopathies: Mechanisms, Recognition, and Management. | Arrhythmia-induced cardiomyopathy (AIC) is a potentially reversible condition in which left ventricular dysfunction is induced or mediated by atrial or ventricular arrhythmias. Cellular and extracellular changes in response to the culprit arrhythmia have been identified, but specific pathophysiological mechanisms remai... |
10,262 | Clinical and Echocardiographic Factors Affecting Tricuspid Regurgitation Severity in the Patients with Lone Atrial Fibrillation. | Atrial fibrillation (AF) can be a risk factor for development of significant tricuspid regurgitation (TR). We investigated which clinical and echocardiographic parameters were related to severity of functional TR in patients with lone AF.</AbstractText>A total of 89 patients with lone AF were enrolled (75 ± 11 yea... |
10,263 | How are arrhythmias detected by implanted cardiac devices managed in Europe? Results of the European Heart Rhythm Association Survey. | The management of arrhythmias detected by implantable cardiac devices can be challenging. There are no formal international guidelines to inform decision-making. The purpose of this European Heart Rhythm Association (EHRA) survey was to assess the management of various clinical scenarios among members of the EHRA elect... |
10,264 | Effect of caffeine on ventricular arrhythmia: a systematic review and meta-analysis of experimental and clinical studies. | The relationship between caffeine consumption and the occurrence of arrhythmias remains controversial. Despite this lack of scientific evidence, counselling to reduce caffeine consumption is still widely advised in clinical practice. We conducted a systematical review and meta-analysis of interventional studies of the ... |
10,265 | The risk of atrial fibrillation during right ventricular pacing. | Right ventricular pacing adversely affects left atrial (LA) structure and function that may trigger atrial fibrillation (AF). This study compares the occurrence of persistent/permanent AF during long-term Hisian area (HA), right ventricular septal (RVS), and right ventricular apex (RVA) pacing in patients with complete... |
10,266 | Neuromodulation for cardiac arrhythmia. | The autonomic nervous system is known to play a significant role in the genesis and maintenance of arrhythmias. Neuromodulation, mostly designed to increase the parasympathetic tone and suppress the sympathetic tone, has become an emerging therapeutic strategy for the treatment of arrhythmias. Emerging therapeutic appr... |
10,267 | Perioperative atrial fibrillation: a systematic review of evolving therapeutic options in pharmacologic and procedural management. | Given the high incidence of atrial fibrillation (AF) in the surgical population and the associated morbidity, physicians managing these complicated patients in the perioperative period need to be aware of the new and emerging trends in its therapy. The cornerstones of AF management have always been rate/rhythm control ... |
10,268 | Sex Differences in Patients With Acute Decompensated Heart Failure: Insights From the Heart Function Assessment Registry Trial in Saudi Arabia. | We assessed sex-specific differences in clinical features and outcomes of patients with acute heart failure (AHF). The Heart function Assessment Registry Trial in Saudi Arabia (HEARTS), a prospective registry, enrolled 2609 patients with AHF (34.2% women) between 2009 and 2010. Women were older and more likely to have ... |
10,269 | Arrhythmogenic Risk Assessment Following Four-Week Pretreatment With Nicotine and Black Tea in Rat. | There is the controversy concerning the main component of tobacco, which is responsible for its arrhythmogenesis. In addition, there is the lack of adequate information about the influence of combination of black tea and nicotine on heart rhythm.</AbstractText>This study aimed to examine whether pretreatment with black... |
10,270 | Atrial Fibrillation Due to Over The Counter Stimulant Drugs in A Young Adult. | The usage of over the counter stimulant drugs and energy drinks is increasing on a day to day basis for various purposes including work, sports and leisure among individuals in all age groups. Multiple formulations are available in the market including pills, liquid capsules and drinks in various flavours. Many of them... |
10,271 | Mechanical circulatory support devices and transcatheter aortic valve implantation (from the National Inpatient Sample). | High-risk surgical patients undergoing transcatheter aortic valve implantation (TAVI) represent an emerging population, which may benefit from short-term use of mechanical circulatory support (MCS) devices. The aim of this study was to determine the practice and inhospital outcomes of MCS utilization in patients underg... |
10,272 | Dabigatran for left ventricular thrombus. | Male patient in dilated phase of hypertrophic cardiomyopathy had multiple hospitalizations during the past 2 years either due to congestive heart failure, stroke, scar epilepsy, or atrial fibrillation and ventricular tachycardia. Medication included evidence based therapy for heart failure, cordarone and warfarin. Anti... |
10,273 | The impact of 6 weeks of atrial fibrillation on left atrial and ventricular structure and function. | The impact of prolonged episodes of atrial fibrillation on atrial and ventricular function has been incompletely characterized. The purpose of this study was to investigate the influence of atrial fibrillation on left atrial and ventricular function in a rapid paced porcine model of atrial fibrillation.</AbstractText>A... |
10,274 | Genetic defects in a His-Purkinje system transcription factor, IRX3, cause lethal cardiac arrhythmias. | Ventricular fibrillation (VF), the main cause of sudden cardiac death (SCD), occurs most frequently in the acute phase of myocardial infarction: a certain fraction of VF, however, develops in an apparently healthy heart, referred as idiopathic VF. The contribution of perturbation in the fast conduction system in the ve... |
10,275 | Dyscholesterolemia Protects Against Ischemia-Induced Ventricular Arrhythmias. | Hypercholesterolemia protects against ventricular fibrillation in patients with myocardial infarction. We hypothesize that hypercholesterolemia protects against ischemia-induced reentrant arrhythmias because of altered ion channel function.</AbstractText>ECGs were measured in low-density lipoprotein receptor knockout (... |
10,276 | Potentially fatal arrhythmias in two cases of adult Kawasaki disease. | Fatal arrhythmias in asymptomatic Kawasaki disease patients with normal left ventricular function have rarely been reported. In this study, we report the cases of two adult patients with largely unpredictable sudden cardiac arrest, despite almost-normal left ventricular function even after the diagnosis of presumed Kaw... |
10,277 | Rate-dependent Loss of Capture during Ventricular Pacing. | A 63-year-old patient who had undergone atrial septal defect surgical repair received implantation of a single chamber VVI pacemaker for long RR intervals during atrial fibrillation. One week later, an intermittent loss of capture and sensing failure was detected at a pacing rate of 70 beats/min. However, a successful ... |
10,278 | A ventilation technique for oxygenation and carbon dioxide elimination in CPR: Continuous insufflation of oxygen at three levels of pressure in a pig model. | Pulmonary ventilation remains an important part of cardiopulmonary resuscitation, affecting gas exchange and haemodynamics. We designed and studied an improved method of ventilation for CPR, constructed specifically to support both gas exchange and haemodynamics. This method uses continuous insufflation of oxygen at th... |
10,279 | Simplified Method for Vagal Effect Evaluation in Cardiac Ablation and Electrophysiological Procedures. | The aim of this study is to show a simplified reversible approach to investigate and confirm vagal denervation at any time during the ablation procedure without autonomic residual effect.</AbstractText>Parasympathetic denervation has been increasingly applied in ablation procedures such as in vagal-related atrial fibri... |
10,280 | The Effect of Contact Force in Atrial Radiofrequency Ablation: Electroanatomical, Cardiovascular Magnetic Resonance, and Histological Assessment in a Chronic Porcine Model. | This study sought to determine the effect of contact force (CF) on atrial lesion size, quality, and transmurality by using a chronic porcine model of radiofrequency ablation.</AbstractText>CF is a major determinant of ventricular lesion formation, but uncertainty exists regarding the most appropriate CF parameters to s... |
10,281 | Utility of a Novel Rapid High-Resolution Mapping System in the Catheter Ablation of Arrhythmias: An Initial Human Experience of Mapping the Atria and the Left Ventricle. | This study sought to assess the clinical efficacy, safety, and clinical utility of a novel electroanatomical mapping system.</AbstractText>A new mapping system capable of rapidly acquiring detailed maps based on automatic annotation of thousands of points was recently released for clinical use. This is the first descri... |
10,282 | Low-Level Electrical Stimulation of Aortic Root Ventricular Ganglionated Plexi Attenuates Autonomic Nervous System-Mediated Atrial Fibrillation. | This study investigated the effect of electrical stimulation of aortic root ventricular ganglionated plexi (GP) on atrial fibrillation (AF) inducibility.</AbstractText>The ventricular GP are interconnected with atrial GP to govern heart function, although the effect of ventricular GP modification on control of AF remai... |
10,283 | [Contribution of atrial activation to the segment of the typical atrial flutter wave: an electro-anatomic insight into the electrocardiogram morphology]. | To investigate how the intra-cardiac activation was translates into the characterized flutter wave in patients with cavatricuspid isthmus-dependent counter-clockwise atrial flutter (CTI-AFL).</AbstractText>A total of 15 hospitalized CTI-AFL patients (mean age: (60 ± 14) years old, 1 female) from October 2012 to Fe... |
10,284 | Relationship between J Waves and Vagal Activity in Patients Who Do Not Have Structural Heart Disease. | J waves are associated with increased vagal activity in patients with idiopathic ventricular fibrillation in several studies to date. However, the relationship between J waves and autonomic nervous activity in patients without structural heart disease remains under investigation. We investigated whether the p... |
10,285 | Cardiac arrest following butane inhalation. | Butane is a commonly misused volatile agent, and a cause of intoxication. We present a case, who had a syncope and persistent ventricular fibrillation during the course of resuscitation. We discussed the management of this case in the intensive care unit and the accompanying difficulties in the light of the current lit... |
10,286 | Supraventricular Tachycardia Classification in the 12-Lead ECG Using Atrial Waves Detection and a Clinically Based Tree Scheme. | Specific supraventricular tachycardia (SVT) classification using surface ECG is considered a challenging task, since the atrial electrical activity (AEA) waves, which are a crucial element for obtaining diagnosis, are frequently hidden. In this paper, we present a fully automated SVT classification method that embeds o... |
10,287 | Is lower base rate detrimental to transcatheter aortic valve implantation patients requiring pacemakers? | Sudden cardiac death related to polymorphic ventricular tachycardia/ventricular fibrillation has been well reported post atrioventricular junction ablation. The practice of faster pacing rate immediately after atrioventricular junction ablation is well recognized to decrease the risk of sudden cardiac death. We propose... |
10,288 | Predict Defibrillation Outcome Using Stepping Increment of Poincare Plot for Out-of-Hospital Ventricular Fibrillation Cardiac Arrest. | Early cardiopulmonary resuscitation together with early defibrillation is a key point in the chain of survival for cardiac arrest. Optimizing the timing of defibrillation by predicting the possibility of successful electric shock can guide treatments between defibrillation and cardiopulmonary resuscitation and improve ... |
10,289 | Electrical storm: A clinical and electrophysiological overview. | Electrical storm (ES) is a clinical condition characterized by three or more ventricular arrhythmia episodes leading to appropriate implantable cardioverter-defibrillator (ICD) therapies in a 24 h period. Mostly, arrhythmias responsible of ES are multiple morphologies of monomorphic ventricular tachycardia (VT), but po... |
10,290 | Modified Maze Procedure for Atrial Fibrillation as an Adjunct to Elective Cardiac Surgery: Predictors of Mid-Term Recurrence and Echocardiographic Follow-Up. | The radiofrequency maze procedure achieves sinus rhythm in 45%-95% of patients treated for atrial fibrillation. This retrospective study evaluates mid-term results of the radiofrequency maze-performed concomitant to elective cardiac surgery-to determine sinus-rhythm predictive factors, and describes the evolution of pa... |
10,291 | Update on the Diagnosis and Management of Brugada Syndrome. | Brugada Syndrome (BrS) is an autosomal dominant channelopathy with variable penetrance affecting the sodium channel. It reduces the transport of sodium ions essential for proper generation of the cardiac action potential. The resulting inhomogeneous repolarisation in areas of the RV epicardium causes malignant ventricu... |
10,292 | Ischemic Postconditioning and Nitric Oxide Administration Failed to Confer Protective Effects in a Porcine Model of Extracorporeal Cardiopulmonary Resuscitation. | The protective effects of ischemic postconditioning (IPC) and nitric oxide (NO) administration have been demonstrated in several ischemic scenarios. However, current evidence regarding the effect of IPC and NO in extracorporeal cardiopulmonary resuscitation remains lacking. Fifteen female swine (body weight 45 k... |
10,293 | Prophylactic and Therapeutic Effects of Oleuropein on Reperfusion-Induced Arrhythmia in Anesthetized Rat. | This study was conducted to reveal that whether i.v. injection of oleuropein, the most potent polyphenolic antioxidant in olive leaf, has any effect on the magnitude of reperfusion arrhythmia in anesthetized rats or not.</AbstractText>Eighty male Wistar rats were divided into 8 groups of 10 each: groups 1 and 5 were as... |
10,294 | Prediction of ventricular arrhythmia events in ischemic heart disease patients with implantable cardioverter-defibrillators. | The aim of the study was to exam the prediction of ventricular arrhythmia events in ischemic heart disease patients with implantable cardioverter-defibrillators (ICD). A total of 123 consecutive patients confirmed ischemia heart disease with ICD were examined. After device implantation, the occurrence of appropriate IC... |
10,295 | Risk Stratification for Arrhythmic Events in Patients With Asymptomatic Pre-Excitation: A Systematic Review for the 2015 ACC/AHA/HRS Guideline for the Management of Adult Patients With Supraventricular Tachycardia: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice... | To review the literature systematically to determine whether noninvasive or invasive risk stratification, such as with an electrophysiological study of patients with asymptomatic pre-excitation, reduces the risk of arrhythmic events and improves patient outcomes.</AbstractText>PubMed, EMBASE, and the Cochrane Central R... |
10,296 | Risk stratification for arrhythmic events in patients with asymptomatic pre-excitation: A systematic review for the 2015 ACC/AHA/HRS guideline for the management of adult patients with supraventricular tachycardia: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice... | To review the literature systematically to determine whether noninvasive or invasive risk stratification, such as with an electrophysiological study of patients with asymptomatic pre-excitation, reduces the risk of arrhythmic events and improves patient outcomes.</AbstractText>PubMed, EMBASE, and the Cochrane Central R... |
10,297 | Electrocardiogram and Chagas disease: a large population database of primary care patients. | Chagas disease (ChD) used to be a disease restricted to Latin America, but has become a worldwide problem due to migration of infected individuals to developed countries. Electrocardiography has been considered an essential exam to evaluate ChD patients.</AbstractText>This study sought to identify prevalent electrocard... |
10,298 | Cardiac shear-wave elastography using a transesophageal transducer: application to the mapping of thermal lesions in ultrasound transesophageal cardiac ablation. | Heart rhythm disorders, such as atrial fibrillation or ventricular tachycardia can be treated by catheter-based thermal ablation. However, clinically available systems based on radio-frequency or cryothermal ablation suffer from limited energy penetration and the lack of lesion's extent monitoring. An ultrasound-guided... |
10,299 | AFW extraction based on MCA. | This paper improves the learning dictionary construction method for morphological component analysis (MCA) to separate the atrial and ventricular signals. The incoherence is added into the objective function to reduce the sparsity ratio between the atrial and ventricular dictionaries. By using the dictionaries, atrial ... |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.