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11,400 | Systematic downloading and analysis of data from automated external defibrillators used in out-of-hospital cardiac arrest. | Valuable information can be retrieved from automated external defibrillators (AEDs) used in victims of out-of-hospital cardiac arrest (OHCA). We describe our experience with systematic downloading of data from deployed AEDs. The primary aim was to compare the proportion of shockable rhythm from AEDs used by laypersons ... |
11,401 | Comparative persistence on β-blockers versus calcium channel blockers for ventricular rate control in nonelderly patients with atrial fibrillation. | For patients with atrial fibrillation (AF), early treatment is essential to prevent serious complications such as stroke. Several randomized clinical trials have shown that rate-control may be as effective as rhythm-control medications, whereas the latter have serious side effects. Little evidence exists, however, abou... |
11,402 | Spanish Catheter Ablation Registry. 13th Official Report of the Spanish Society of Cardiology Working Group on Electrophysiology and Arrhythmias (2013). | This report presents the results of the 2013 Spanish Catheter Ablation Registry.</AbstractText>Data were collected using 2 systems: retrospectively by completing a dedicated form and prospectively by reporting to a central database. Each participating center chose 1 of the 2 data collection methods.</AbstractText>Eight... |
11,403 | Clinical features, risk factors, and treatment experience: a review of 74 patients with ST-segment elevation myocardial infarction complicated by ventricular fibrillation. | Ventricular fibrillation (VF) is one of the most serious complications of acute myocardial infarction, with a high mortality rate. There is a lack of value of rescue thrombolysis in ST-segment elevation myocardial infarction (STEMI) complicated by VF.</AbstractText>To examine the relationship between risk factors and m... |
11,404 | Left atrial passive emptying function is preserved in patients with permanent atrial fibrillation--a 320-slice multidetector computed tomography study. | Left atrial (LA) mechanical function is thought to be virtually inexistent in patients with permanent atrial fibrillation (AF). Due to recent advances in multidetector computed tomography (MDCT) technology, it is now possible to acquire images of the entire heart in a single heartbeat. The objective of this study was t... |
11,405 | Effects of different LAD-blocked sites on the development of acute myocardial infarction and malignant arrhythmia in a swine model. | To explore the effects of various left anterior descending (LAD) artery-blocked sites on the development of acute myocardial infarction (AMI) and malignant arrhythmia in a swine model.</AbstractText>Twenty-two pigs underwent occlusion of the coronary artery with balloon angioplasty were randomly divided into three grou... |
11,406 | Short-term ECG recordings for heart rate assessment in patients with chronic atrial fibrillation. | There is no consensus on the length of ECG tracing that should be recorded to represent adequate rate control in patients with atrial fibrillation (AFib). The purpose of the study was to examine whether heart rate measurements based on short-term ECGs recorded at different periods of the day may correspond to the mean ... |
11,407 | Prediction of atrial fibrillation recurrence after cardioversion in patients with left-atrial dilation. | Little is known about the impact of left-ventricular (LV) diastolic dysfunction on risk of atrial fibrillation (AF) recurrence in patients with left-atrial (LA) dilation. To evaluate, in patients with symptomatic persistent AF and LA dilation, the incremental role of LV diastolic dysfunction in predicting early AF recu... |
11,408 | Calcium-activated potassium current modulates ventricular repolarization in chronic heart failure. | The role of I(KCa) in cardiac repolarization remains controversial and varies across species. The relevance of the current as a therapeutic target is therefore undefined. We examined the cellular electrophysiologic effects of I(KCa) blockade in controls, chronic heart failure (HF) and HF with sustained atrial fibrillat... |
11,409 | Effect of different resuscitation strategies on post-resuscitation brain damage in a porcine model of prolonged cardiac arrest. | The choice of a defibrillation or a cardiopulmonary resuscitation (CPR)-first strategy in the treatment of prolonged cardiac arrest (CA) is still controversial. The purpose of this study was to compare the effects of defibrillation or CPR administered first on neurological prognostic markers in a porcine model of prolo... |
11,410 | [Arrhythmia in patients with chronic heart insufficiency and type 2 diabetes mellitus]. | The aim of the work was to study character, frequency and peculiarities of arrhythmia in patients with chronic heart insufficiency (CHI) depending on its etiology and type 2 diabetes mellitus (DM2).</AbstractText>In-depth clinical observation of 197 patients (mean age 61.3 +/- 0.63 yr, 56-61% men) included EchoCG, 6 mi... |
11,411 | Mitochondrial instability during regional ischemia-reperfusion underlies arrhythmias in monolayers of cardiomyocytes. | Regional depolarization of the mitochondrial network can alter cellular electrical excitability and increase the propensity for reentry, in part, through the opening of sarcolemmal KATP channels. Mitochondrial inner membrane potential (ΔΨm) instability or oscillation can be induced in myocytes by exposure t... |
11,412 | Associations of electrocardiographic P-wave characteristics with left atrial function, and diffuse left ventricular fibrosis defined by cardiac magnetic resonance: The PRIMERI Study. | Abnormal P-terminal force in lead V1 (PTFV1) is associated with an increased risk of heart failure, stroke, atrial fibrillation, and death.</AbstractText>Our goal was to explore associations of left ventricular (LV) diffuse fibrosis with left atrial (LA) function and electrocardiographic (ECG) measures of LA electrical... |
11,413 | Work-up and management of lone atrial fibrillation: results of the European Heart Rhythm Association Survey. | The purpose of this European Heart Rhythm Association (EHRA) survey was to explore the work-up and management of lone atrial fibrillation (AF) among the European centres. Thirty-two European centres, all members of the EHRA electrophysiology (EP) research network, responded to this survey and completed the list of ques... |
11,414 | Ventricular tachyarrhythmia recurrence in primary versus secondary implantable cardioverter-defibrillator patients and role of electrophysiology study. | In recent years, there has been a shift away from performing electrophysiologic study (EPS) to guide implantable cardioverter-defibrillator (ICD) implantation with a reliance on left ventricular ejection fraction (LVEF) alone.</AbstractText>ICD patients were prospectively recruited from the multicentre COMFORT (Concept... |
11,415 | Magnetic resonance imaging for identifying patients with cardiac sarcoidosis and preserved or mildly reduced left ventricular function at risk of ventricular arrhythmias. | The purpose of this study was to assess whether delayed enhancement (DE) on MRI is associated with ventricular tachycardia (VT)/ventricular fibrillation or death in patients with cardiac sarcoidosis and left ventricular ejection fraction >35%.</AbstractText>Fifty-one patients with cardiac sarcoidosis and left ventri... |
11,416 | Off-pump versus on-pump coronary artery bypass surgery in patients with triple-vessel disease and enlarged ventricles. | Off-pump coronary artery bypass grafting (OPCAB) is a popular treatment for patients with ischemic heart disease, especially for high-risk patients. However, whether OPCAB can lead to better clinical outcomes than on-pump coronary artery bypass grafting (ONCAB) in patients with enlarged ventricles remains controversial... |
11,417 | Hemodynamic improvement of a LUCAS 2 automated device by addition of an impedance threshold device in a pig model of cardiac arrest. | The combination of the LUCAS 2 (L-CPR) automated CPR device and an impedance threshold device (ITD) has been widely implemented in the clinical field. This animal study tested the hypothesis that the addition of an ITD on L-CPR would enhance cerebral and coronary perfusion pressures.</AbstractText>Ten female pigs (39.0... |
11,418 | Ablation of the epicardial substrate in the right ventricular outflow tract in a patient with Brugada syndrome refusing implantable cardioverter defibrillator therapy. | Brugada syndrome is associated with a high risk of sudden cardiac death. Currently, the cornerstone of therapy is implantation of an implantable cardioverter defibrillator (ICD). Recently, a novel approach to preventively ablate the substrate located in the anterior epicardial region of the right ventricular outflow tr... |
11,419 | Does digoxin increase the risk of ischemic stroke and mortality in atrial fibrillation? A nationwide population-based cohort study. | Digoxin and related cardiac glycosides have been used for almost 100 years in atrial fibrillation (AF). However, 2 recent analyses of the Atrial Fibrillation Follow-Up Investigation of Rhythm Management (AFFIRM) trial showed inconsistent results regarding the risk of mortality associated with digoxin use. The goal of t... |
11,420 | Atrial fibrillation and its association with sudden cardiac death. | Evidence is emerging to indicate that atrial fibrillation (AF) is independently associated with an increased risk of sudden cardiac death (SCD). This association has been consistently observed in specific patient subgroups such as patients with myocardial infarction (MI), heart failure, and hypertension, and importantl... |
11,421 | Catheter ablation of atrial fibrillation in patients with left ventricular systolic dysfunction: a systematic review and meta-analysis. | Catheter ablation of atrial fibrillation (AFCA) is an established therapeutic option for rhythm control in symptomatic patients. Its efficacy and safety among patients with left ventricular systolic dysfunction is based on small populations, and data concerning long-term outcome are limited. We performed this meta-anal... |
11,422 | Prognostic significance of left atrial appendage "sludge" in patients with atrial fibrillation: a new transesophageal echocardiographic thromboembolic risk factor. | When stratifying thromboembolic risk to patients with atrial fibrillation (AF), left atrial appendage (LAA) thrombus is currently the only echocardiographic index that absolutely contraindicates cardioversion. The aim of this study was to identify the predictors of LAA "sludge" and its impact on subsequent thromboembol... |
11,423 | HyperOxic Therapy OR NormOxic Therapy after out-of-hospital cardiac arrest (HOT OR NOT): a randomised controlled feasibility trial. | To investigate the feasibility of delivering titrated oxygen therapy to adults with return of spontaneous circulation (ROSC) following out-of-hospital cardiac arrest (OHCA) caused by ventricular fibrillation (VF) or ventricular tachycardia (VT).</AbstractText>We used a multicentre, randomised, single blind, parallel gr... |
11,424 | Deceptive meaning of oxygen uptake measured at the anaerobic threshold in patients with systolic heart failure and atrial fibrillation. | Oxygen uptake at the anaerobic threshold (VO2AT), a submaximal exercise-derived variable, independent of patients' motivation, is a marker of outcome in heart failure (HF). However, previous evidence of VO2AT values paradoxically higher in HF patients with permanent atrial fibrillation (AF) than in those with sinus rhy... |
11,425 | Global left atrial strain in the prediction of sinus rhythm maintenance after catheter ablation for atrial fibrillation. | Left atrial (LA) strain is a sensitive measure of LA mechanics. However, its relationship with rhythm outcomes after catheter ablation in patients with atrial fibrillation (AF) is not well established. The aim of this study was to evaluate whether baseline LA global longitudinal strain (LAε) predicts rhythm outco... |
11,426 | P-wave dispersion and its relationship to aortic stiffness in patients with acute myocardial infarction after cardiac rehabilitation. | The aim of our study was to investigate the P-wave dispersion from standard electrocardiograms (ECGs) in patients with acute myocardial infarction (AMI) after cardiac rehabilitation (CR) and determine its relation to arterial stiffness.</AbstractText>This is a prospective study included 33 patients with AMI and success... |
11,427 | Association of amplitude spectral area of the ventricular fibrillation waveform with survival of out-of-hospital ventricular fibrillation cardiac arrest. | Previous investigations of out-of-hospital cardiac arrest (OHCA) have shown that the waveform characteristic amplitude spectral area (AMSA) can predict successful defibrillation and return of spontaneous circulation (ROSC) but has not been studied previously for survival.</AbstractText>To determine whether AMSA compute... |
11,428 | History and clinical significance of early repolarization syndrome. | The early repolarization (ER) pattern has historically been regarded as a benign ECG variant. However, in recent years this view has been challenged based on multiple reports linking the ER pattern with an increased risk of sudden cardiac death. The mechanistic basis of ventricular arrhythmogenesis in ER syndrome is pr... |
11,429 | Cancer antigen 125 levels and increased risk of new-onset atrial fibrillation. | Elevated cancer antigen 125 (CA-125) levels are associated with cardiopulmonary disorders such as acute and chronic heart failure (HF), coronary artery disease, chronic obstructive pulmonary disease, and atrial fibrillation (AF). The development of atrial fibrillation (AF) is related to morbidity and mortality in patie... |
11,430 | Effects of Chinese medicine shen-fu injection on the expression of inflammatory cytokines and complements during post-resuscitation immune dysfunction in a porcine model. | To investigate the action of Shen-Fu Injection (SFI) in regulating the expression of the serum complements and inflammatory cytokines synthesized and released in response to the stress of global ischemia accompanying cardiac arrest (CA) and resuscitation.</AbstractText>Thirty pigs were randomly divided into the sham (n... |
11,431 | [Survival and neurological outcome in out-of-hospital cardiac arrests due to shockable rhythms treated with mild therapeutic hypothermia]. | To analyze survival and neurological outcome at short and medium term in patients treated with mild therapeutic hypothermia (HTM) in our hospital after suffering an out-of-hospital cardiac arrest (CA) secondary to a shockable rhythm.</AbstractText>Prospective, observational study from September 1, 2010 to December 31, ... |
11,432 | Risk factors for atrial fibrillation in patients with normal versus dilated left atrium (from the Atherosclerosis Risk in Communities Study). | Epidemiological data are limited regarding risk factors of atrial fibrillation (AF) in patients with normal-sized left atria (LA). We evaluated whether traditional risk factors of AF differ between patients with normal-sized and dilated LA. This is a cross sectional study of community-dwelling participants of the Ather... |
11,433 | Validation of the Risk Estimator Decision Aid for Atrial Fibrillation (RED-AF) for predicting 30-day adverse events in emergency department patients with atrial fibrillation. | In the United States, nearly 70% of emergency department (ED) visits for atrial fibrillation result in hospitalization. The incidence of serious 30-day adverse events after an ED evaluation for atrial fibrillation remains low. This study's goal was to prospectively validate our previously reported Risk Estimator Decisi... |
11,434 | Double Sequential External Defibrillation in Out-of-Hospital Refractory Ventricular Fibrillation: A Report of Ten Cases. | Abstract Background. Ventricular fibrillation (VF) is considered the out-of-hospital cardiac arrest (OOHCA) rhythm with the highest likelihood of neurologically intact survival. Unfortunately, there are occasions when VF does not respond to standard defibrillatory shocks. Current American Heart Association (AHA) guidel... |
11,435 | Subcutaneous implantable cardioverter-defibrillator: Initial experience. | Implantable cardioverter-defibrillators (ICDs) are important tools in the prevention of sudden death, but implantation requires transvenous access, which is associated with complications. Subcutaneous implantable cardioverter-defibrillators (S-ICDs) may prevent some of these complications.</AbstractText>To evaluate the... |
11,436 | Defibrillation in the movies: a missed opportunity for public health education. | To characterize defibrillation and cardiac arrest survival outcomes in movies.</AbstractText>Movies from 2003 to 2012 with defibrillation scenes were reviewed for patient and rescuer characteristics, scene characteristics, defibrillation characteristics, additional interventions, and cardiac arrest survival outcomes. R... |
11,437 | Paradoxical effects of KB-R7943 on arrhythmogenicity in a chronic myocardial infarction rabbit model. | Na(+)/Ca(2+) exchanger blockade has been reported to be anti-arrhythmic in different models. The effects of KB-R7943, a Na(+)/Ca(2+) exchanger blocker, on arrhythmogenesis in hearts with chronic myocardial infarction (MI) remain unclear.</AbstractText>Dual voltage and intracellular Ca(2+) (Cai) optical mapping was perf... |
11,438 | [ICD inappropriate shock for atrial fibrillation: use of home-monitoring for the prevention]. | In this case report, we describe the example of an ICD inappropriate shocks. These inappropriate shocks were induced by atrial fibrillation with a high ventricular rate. The first message transmitted by the home-monitoring preceded the first shocks. Use of home-monitoring permits explanations for these inappropriate sh... |
11,439 | Near fatal ventricular fibrillation in Brugada syndrome despite presence of an implanted implantable cardioverter defibrillator. | A 38-year-old man with Brugada syndrome and aborted cardiac arrest was treated with quinidine only, based on the results of electrophysiologic drug testing. Six months later, after suffering a vaso-vagal syncope, he opted to receive an implantable cardioverter defibrillator and decided to discontinue quinidine against ... |
11,440 | Idiopathic ventricular arrhythmias originating from the moderator band: Electrocardiographic characteristics and treatment by catheter ablation. | The moderator band (MB) can be a source of premature ventricular contractions (PVCs), monomorphic ventricular tachycardia (VT), and idiopathic ventricular fibrillation (IVF).</AbstractText>The purpose of this study was to define the electrocardiographic (ECG) characteristics and procedural techniques to successfully id... |
11,441 | Postprocedural anticoagulation for specific therapeutic indications after revascularization for ST-segment elevation myocardial infarction (from the Harmonizing Outcomes with Revascularization and Stents in Acute Myocardial Infarction Trial). | Postprocedural anticoagulation (AC) after primary percutaneous coronary intervention (PCI) in ST-segment elevation myocardial infarction (STEMI) may be administered for a number of specific therapeutic indications (e.g. atrial fibrillation or left ventricular thrombus). However, the safety and effectiveness of such pos... |
11,442 | Cardiac arrest with coronary artery spasm: does the use of epinephrine during cardiopulmonary arrest exacerbate the spasm? | Coronary artery spasm can lead to sudden cardiac death due to ventricular arrhythmias or heart block. Cardiopulmonary resuscitation guidelines recommend the use of epinephrine during cardiopulmonary arrest. However, in the event of cardiac arrest caused by coronary artery spasm, the use of epinephrine may be harmful. W... |
11,443 | Ankyrin-G coordinates intercalated disc signaling platform to regulate cardiac excitability in vivo. | Nav1.5 (SCN5A) is the primary cardiac voltage-gated Nav channel. Nav1.5 is critical for cardiac excitability and conduction, and human SCN5A mutations cause sinus node dysfunction, atrial fibrillation, conductional abnormalities, and ventricular arrhythmias. Further, defects in Nav1.5 regulation are linked with maligna... |
11,444 | Admission interleukin-6 is associated with post resuscitation organ dysfunction and predicts long-term neurological outcome after out-of-hospital ventricular fibrillation. | To study plasma concentrations of interleukin-6 (IL-6), high-sensitivity C-reactive protein (hs-CRP) and S-100B during intensive care after out-of-hospital cardiac arrest from ventricular fibrillation (OHCA-VF), and their associations with the duration of ischemia, organ dysfunction and long-term neurological outcome.<... |
11,445 | Atrial fibrillation is an independent risk factor for ventricular fibrillation: a large-scale population-based case-control study. | Atrial fibrillation (AF) is associated with sudden cardiac death. We aimed to study whether AF is associated with ventricular fibrillation (VF), the most common cause of sudden cardiac death and whether this association is independent of confounders, ie, concomitant disease, use of antiarrhythmic or QT-prolonging drugs... |
11,446 | Clinical application of the fibrillation number in patients with an implantable cardioverter defibrillator. | Although ventricular tachycardia/fibrillation (VT/VF) develops suddenly with catastrophic results, its prediction is limited. We tested the fibrillation number (FibN) for potential predictor of VT/VF using clinical data of implantable cardioverter-defibrillator (ICD) patients after validating the number by computationa... |
11,447 | Multilead template-derived residua of surface ECGS for quantitative assessment of arrhythmia risk. | Contemporary electrocardiographic (ECG) markers including ventricular ectopy and arrhythmias have not proved reliable in risk assessment for life-threatening arrhythmias.</AbstractText>We developed the "Multilead ECG Template-Derived Residua" approach to remove intrinsic morphologic differences and allow calculation of... |
11,448 | Electrocardiogram characteristics prior to in-hospital cardiac arrest. | Survival after in-hospital cardiac arrest (I-HCA) remains < 30 %. There is very limited literature exploring the electrocardiogram changes prior to I-HCA. The purpose of the study was to determine demographics and electrocardiographic predictors prior to I-HCA. A retrospective study was conducted among 39 cardiovasc... |
11,449 | Renal denervation for treatment of cardiac arrhythmias: state of the art and future directions. | It has now been more than a quarter of a century since modulation of the sympathetic nervous system was proposed for the treatment of cardiac arrhythmias of different origins. But it has also been some time since some of the early surgical attempts have been abandoned. With the development of ablation techniques, howev... |
11,450 | Prognostic values of highly sensitive cardiac troponin T and B-type natriuretic peptide for clinical features in hypertrophic obstructive cardiomyopathy: a cross-sectional study. | Although B-type natriuretic peptide (BNP) and highly sensitive cardiac troponin T (cTnT) are useful for the evaluation of clinical features in various cardiovascular diseases, there are comparatively few data regarding the utility of these parameters in patients with hypertrophic obstructive cardiomyopathy (HOCM). The ... |
11,451 | Selected CD133⁺ progenitor cells to promote angiogenesis in patients with refractory angina: final results of the PROGENITOR randomized trial. | Refractory angina constitutes a clinical problem.</AbstractText>The aim of this study was to assess the safety and the feasibility of transendocardial injection of CD133(+) cells to foster angiogenesis in patients with refractory angina.</AbstractText>In this randomized, double-blinded, multicenter controlled trial, el... |
11,452 | Local dynamics of heart rate: detection and prognostic implications. | The original observation that reduced heart rate variability (HRV) confers poor prognosis after myocardial infarction has been followed by many studies of heart rate dynamics. We tested the hypothesis that an entropy-based local dynamics measure gave prognostic information in ambulatory patients undergoing 24-h electro... |
11,453 | Cardiac rehabilitation of a patient with an advanced dilated cardiomyopathy: a case report. | The dilated cardiomyopathy is the common type of cardiomyopathy, and its distinctive characteristic is the systolic dysfunction. Not many reports were issued about the efficacy of cardiac rehabilitation in patients with an advanced dilated cardiomyopathy until yet. A 50-year-old man who was diagnosed with dilated cardi... |
11,454 | Hypertrophic cardiomyopathy: Can the noninvasive diagnostic testing identify high risk patients? | Hypertrophic cardiomyopathy (HCM) is the most common cause of sudden cardiac death (SCD) in the young, particularly among athletes. Identifying high risk individuals is very important for SCD prevention. The purpose of this review is to stress that noninvasive diagnostic testing is important for risk assessment. Extrem... |
11,455 | Electrophysiology assessment and radiofrequency ablation of arrhythmias in adult patients with congenital heart defects: the Christchurch experience. | Adults with congenital heart disease (CHD) frequently have cardiac arrhythmias, many of which are best treated with radiofrequency ablation (RFA). We present our experience in this group.</AbstractText>Retrospective chart based review of diagnosis, arrhythmia type, results of cardiac electrophysiological assessment, an... |
11,456 | Transcollateral retrograde diagnostic coronary angiogram - important therapeutic implications for an occluded arterial coronary artery bypass graft. | This case illustrates the potential clinical usefulness of retrograde approach for selective visualization of distal vessels in a patient with multiple coronary chronic total occlusions and previous coronary artery bypass graft (CABG) surgery. By knowing in extreme detail the exact anatomy of the complex post-surgical ... |
11,457 | Exome sequencing identifies a mutation in the ACTN2 gene in a family with idiopathic ventricular fibrillation, left ventricular noncompaction, and sudden death. | Potentially lethal and heritable cardiomyopathies and cardiac channelopathies are caused by heterogeneous autosomal dominant mutations in over 50 distinct genes, and multiple genes are responsible for a given disease. Clinical genetic tests are available for several of the inherited cardiac diseases and clinical invest... |
11,458 | Minimally invasive right thoracotomy approach for mitral valve surgery in patients with previous sternotomy: a single institution experience with 173 patients. | This study presents a review of our experience with minimally invasive mitral valve surgery (MIMVS) in patients with a previous cardiac procedure performed through a sternotomy over a 10-year period.</AbstractText>From November 2003 to August 2013, 173 patients (age 61.3 ± 12.4 years) underwent reoperative MIMVS t... |
11,459 | Torasemide reduces dilated cardiomyopathy, complication of arrhythmia, and progression to heart failure. | The aim of this study was to analyze the incidence and types of arrhythmia and their relationship with the severity and prognosis of chronic heart failure (CHF) in patients with dilated cardiomyopathy (DCM), and to investigate the therapeutic effect of torasemide versus furosemide on CHF and incidence of arrhythmia. DC... |
11,460 | Electrical storm in patients with brugada syndrome is associated with early repolarization. | Electrical storms (ESs) in patients with Brugada syndrome (BrS) are rare though potentially lethal.</AbstractText>We studied 22 men with BrS and ES, defined as ≥3 episodes/d of ventricular fibrillation (VF) and compared their characteristics with those of 110 age-matched, control men with BrS without ES. BrS was... |
11,461 | Ablation of ventricular arrhythmias. | Ventricular arrhythmias (VAs) commonly occur in patients with structural heart disease and may present as ventricular premature depolarizations (VPDs), monomorphic ventricular tachycardia (VT), or polymorphic VT/ventricular fibrillation. Idiopathic VAs can also occur in patients with normal hearts. This review explores... |
11,462 | Feasibility of neuromuscular electrical stimulation immediately after cardiovascular surgery. | To determine the safety and feasibility of neuromuscular electrical stimulation (NMES) from postoperative days (PODs) 1 to 5 after cardiovascular surgery.</AbstractText>Pre-post interventional study.</AbstractText>Surgical intensive care unit and thoracic surgical ward of a university hospital.</AbstractText>Consecutiv... |
11,463 | Preoperative risk factors of medium-term mitral valve repair outcome. | This study aimed to evaluate risk factors that affect mitral valve (MV) repair outcomes.</AbstractText>From 2002 to 2012, 580 consecutive patients with mitral regurgitation (MR) underwent MV repair. Of the total number of patients, 48.9% were found to be in New York Heart Association (NYHA) Class III or IV. Anterior, p... |
11,464 | Frequency of supraventricular arrhythmias in patients with idiopathic pulmonary arterial hypertension. | Supraventricular arrhythmias (SVA) may be risk factors of prognosis in patients with pulmonary arterial hypertension. SVA are increasingly reported in patients with pulmonary hypertension, but little is known about their incidence and outcomes for patients with idiopathic pulmonary arterial hypertension (IPAH) in ... |
11,465 | Current approaches to antiarrhythmic therapy in heart failure. | Atrial fibrillation (AF) is exceedingly common in patients with heart failure (HF), as they share common risk factors. Rate control is the cornerstone of treatment for AF; however, restoration of sinus rhythm should be considered when more than minimal symptoms are present. Life-threatening ventricular arrhythmias are ... |
11,466 | Enhancing approaches to therapeutic hypothermia in patients with sudden circulatory arrest. | Cardiac arrest is common and causes substantial morbidity and mortality. Despite advances in prevention and resuscitation, most patients remain unconscious and survival remains poor. Therapeutic hypothermia (32-34 °C) has emerged as a potent neuroprotective modality following resuscitation. In early clinical ... |
11,467 | Mapping and ablating ventricular premature contractions that trigger ventricular fibrillation: trigger elimination and substrate modification. | Ventricular fibrillation (VF) is a malignant arrhythmia, usually initiated by a ventricular premature contraction (VPC) during the vulnerable period of cardiac repolarization. Ablation therapy for VF has been described and increasingly reported. Targets for VF triggers are VPC preceded Purkinje potentials or the right ... |
11,468 | Effects of ramipril on ventricular arrhythmia after myocardial infarction in rabbits. | Ventricular arrhythmia (VA) is one of the most common complications of myocardial infarction (MI), and ventricular tachycardia and fibrillation are the main causes for sudden cardiac death. This study aimed to explore the effect of ramipril on the occurrence of VA and its mechanism after MI in rabbits.</AbstractText>Tw... |
11,469 | Changes of end-tidal carbon dioxide during cardiopulmonary resuscitation from ventricular fibrillation versus asphyxial cardiac arrest. | Partial pressure of end-tidal carbon dioxide (PETCO2) has been used to monitor the effectiveness of precordial compression (PC) and regarded as a prognostic value of outcomes in cardiopulmonary resuscitation (CPR). This study was to investigate changes of PETCO2 during CPR in rats with ventricular fibrillation (VF) ver... |
11,470 | A review of multisite pacing to achieve cardiac resynchronization therapy. | Non-response to cardiac resynchronization therapy remains a significant problem in up to 30% of patients. Multisite stimulation has emerged as a way of potentially overcoming non-response. This may be achieved by the use of multiple leads placed within the coronary sinus and its tributaries (dual-vein pacing) or more r... |
11,471 | Cardiopulmonary resuscitation (CPR) plus delayed defibrillation versus immediate defibrillation for out-of-hospital cardiac arrest. | Sudden cardiac arrest (SCA) is a common health problem associated with high levels of mortality. Cardiac arrest is caused by three groups of dysrhythmias: ventricular fibrillation (VF) or pulseless ventricular tachycardia (VT), pulseless electric activity (PEA) and asystole. The most common dysrhythmia found in out-of-... |
11,472 | Off-pump coronary surgery: current justifications. | Although the literature has failed to project an overall superiority of off-pump vs. on-pump surgery, nevertheless, small randomized control trials and large meta-analysis studies have concluded that the incidence of a stroke is less than 1 % when anaortic off-pump techniques are advocated in patients with diseased asc... |
11,473 | Interhospital air transport of a blind patient on extracorporeal life support with consecutive and successful left ventricular assist device implantation. | The use of extracorporeal life support systems (ECLS) in patients with postcardiotomy low cardiac output syndrome (LCO) as a bridge to recovery and bridge to implantation of ventricular assist device (VAD) is common nowadays. A 59-year-old patient with acute myocardial infarction received a percutaneous transluminal an... |
11,474 | Pre-hospital versus in-hospital thrombolysis for ST-elevation myocardial infarction. | Early thrombolysis for individuals experiencing a myocardial infarction is associated with better mortality and morbidity outcomes. While traditionally thrombolysis is given in hospital, pre-hospital thrombolysis is proposed as an effective intervention to save time and reduce mortality and morbidity in individuals wit... |
11,475 | Improved outcome in Sweden after out-of-hospital cardiac arrest and possible association with improvements in every link in the chain of survival. | To describe out-of-hospital cardiac arrest (OHCA) in Sweden from a long-term perspective in terms of changes in outcome and circumstances at resuscitation.</AbstractText>All cases of OHCA (n = 59,926) reported to the Swedish Cardiac Arrest Register from 1992 to 2011 were included. The number of cases reported (n/100,00... |
11,476 | Extracorporeal life support as rescue strategy for out-of-hospital and emergency department cardiac arrest. | Extracorporeal life support (ECLS) has been utilized as a rescue strategy for patients with cardiac arrest unresponsive to conventional cardiopulmonary resuscitation.</AbstractText>We sought to describe our institution's experience with implementation of ECLS for out-of-hospital and emergency department (ED) cardiac ar... |
11,477 | Renewed impact of lidocaine on refractory ventricular arrhythmias in the amiodarone era. | Recent guidelines for treating ventricular fibrillation (VF) and ventricular tachycardia (VT) stress class III antiarrhythmic drugs, but some malignant arrhythmias refractory to these agents still occur in clinical practice. The possibility of a new treatment strategy involving lidocaine and amiodarone combination ther... |
11,478 | P-wave duration in lead aVR and the risk of atrial fibrillation in hypertension. | Hypertension entails atrial remodeling that affect P-wave (PW) duration on electrocardiogram (ECG). PW indices (e.g., variance, dispersion, and terminal force) are associated with a higher risk for atrial fibrillation (AF), but their calculation requires multiple measurements of PW duration, limiting their use in clini... |
11,479 | Usefulness of arrhythmias as predictors of death and resource utilization in children with myocarditis. | Myocarditis in children can result in significant morbidity and mortality, yet limited prognostic data exist. The aim of this study was to test the hypothesis that pediatric patients with arrhythmias during hospitalization for acute myocarditis have worse outcomes and increased resource utilization. A retrospective stu... |
11,480 | Prevalence and long-term outcome of aortic prosthesis-patient mismatch in patients with paradoxical low-flow severe aortic stenosis. | Patients with severe aortic stenosis (AS) and paradoxical low flow (PLF) have worse outcome compared with those with normal flow. Furthermore, prosthesis-patient mismatch (PPM) after aortic valve replacement is a predictor of reduced survival. However, the prevalence and prognostic impact of PPM in patients with PLF-AS... |
11,481 | Atrial fibrillation presented with syncope in a jet pilot during daily briefing on squadron. | Syncope may be the initial clinical presentation of atrial fibrillation (AF) and has a great potential for incapacitation during flight. Herein is presented the case of a jet pilot who had paroxysmal palpitations accompanied with presyncope which progressed to syncope and was found to be associated with AF.</AbstractTe... |
11,482 | Arrhythmias in Complex Congenital Heart Disease. | Late after surgical repair of complex congenital heart disease, atrial arrhythmias are a major cause of morbidity, and ventricular arrhythmias and sudden cardiac death are a major cause of mortality. The six cases in this article highlight common challenges in the management of arrhythmias in the adult congenital heart... |
11,483 | Unilateral and multilateral congenital coronary-pulmonary fistulas in adults: clinical presentation, diagnostic modalities, and management with a brief review of the literature. | Congenital coronary-pulmonary fistulas (CPFs) are commonly unilateral, but bilateral and multilateral fistulas may occur. In multilateral CPFs, the value of a multidetector computed tomography (MDCT) imaging technique as an adjuvant to coronary angiography (CAG) is eminent. The purpose of this study was to describe the... |
11,484 | Permanent pacing in nonagenarians over 20-year period. | Life expectancy increases progressively and nonagenarians are a growing population. We report trends in pacing and long-term outcome in nonagenarians over a 20-year period in a single center compared with those of younger patients.</AbstractText>We retrospectively reviewed all the patients who underwent their first pac... |
11,485 | Severe central sleep apnea is associated with atrial fibrillation in patients with left ventricular systolic dysfunction. | The results of previous studies investigating the association between atrial fibrillation (AF) and central sleep apnea (CSA) in patients with left ventricular (LV) systolic dysfunction are contradictory.</AbstractText>We prospectively enrolled 267 patients in this cross-sectional study with LV ejection fractions Ȧ... |
11,486 | Beyond ventricular fibrillation analysis: comprehensive waveform analysis for all cardiac rhythms occurring during resuscitation. | To propose a method which analyses the electrocardiogram (ECG) waveform of any cardiac rhythm occurring during resuscitation and computes the probability of that rhythm converting into another with better prognosis (Pdes).</AbstractText>Rhythm transitions occurring spontaneously or due to defibrillation were analyzed. ... |
11,487 | Thoracoscopic lung biopsy in 285 patients with diffuse pulmonary disease. | Surgical lung biopsy is generally considered the most appropriate method for diagnosing diffuse lung disease. However, there are few reports focusing on only one thoracoscopic technique. This study was designed to determine the morbidity and mortality related to video-assisted thoracoscopic lung biopsy in a single cent... |
11,488 | Efficacy of β blockers in patients with heart failure plus atrial fibrillation: an individual-patient data meta-analysis. | Atrial fibrillation and heart failure often coexist, causing substantial cardiovascular morbidity and mortality. β blockers are indicated in patients with symptomatic heart failure with reduced ejection fraction; however, the efficacy of these drugs in patients with concomitant atrial fibrillation is uncertain. W... |
11,489 | 20 years of cardiac resynchronization therapy. | Cardiac resynchronization therapy (CRT) is an accepted treatment for patients with heart failure (HF), impaired left ventricular (LV) function, and a wide QRS complex. It has been revolutionary for patients with advanced HF whose only previous option was cardiac transplantation, and it is now a realistic option for pat... |
11,490 | Effect of right ventricular pacing lead site on left ventricular function in patients with high-grade atrioventricular block: results of the Protect-Pace study. | Chronic right ventricle (RV) apical (RVA) pacing is standard treatment for an atrioventricular (AV) block but may be deleterious to left ventricle (LV) systolic function. Previous clinical studies of non-apical pacing have produced conflicting results. The aim of this randomized, prospective, international, multicentre... |
11,491 | A pharmacologic review of cardiac arrest. | Cardiac arrest is manifested by arrhythmias (ventricular fibrillation or pulseless ventricular tachycardia, pulseless electrical activity, or asystole) resulting in minimal to no forward blood flow to the body's oxygen-dependent tissues. Defibrillation and cardiopulmonary resuscitation (CPR) should be initiated immedia... |
11,492 | Echocardiographic abnormalities in patients with stroke during the subacute rehabilitation phase. | To evaluate cardiac function using echocardiography in patients with stroke admitted to subacute rehabilitation units.</AbstractText>Retrospective, cross-sectional study.</AbstractText>A total of 750 consecutive patients with stroke who were admitted to a suburban rehabilitation hospital. Mean age 67.5 years (standard ... |
11,493 | Mid-life Cardiovascular Risk Impacts Memory Function: The Framingham Offspring Study. | This study incorporates unique error response analyses with traditional measures of memory to examine the association between mid-life cardiovascular risk factors and later-life memory function.</AbstractText>The Framingham Stroke Risk Profile (FSRP), a composite score of cardiovascular risk, was assessed in 1755 Frami... |
11,494 | Accidental intoxication with hydrochloric acid and hydrofluoric acid mixture. | The paper describes a fatal case of accidental ingestion of a mixture of hydrochloric acid and hydrofluoric acid. The man was admitted to hospital, where appropriate treatment, adequate to his condition, was instituted. Numerous ventricular fibrillation episodes, for which the patient was defibrillated repeatedly, were... |
11,495 | Blood pressure variability in patients with atrial fibrillation. | The highly irregular ventricular rate during atrial fibrillation (AF) represents a unique and physiological experimental model to eliminate the influence of rhythmical components of RR variability on arterial pressure variability for investigating the origin of low frequency (LF) component in arterial pressure. Surface... |
11,496 | Stroke prophylaxis in atrial fibrillation: searching for management improvement opportunities in the emergency department: the HERMES-AF study. | We determine the prevalence of stroke prophylaxis prescription in emergency department (ED) patients with atrial fibrillation and the factors associated with a lack of prescription of anticoagulation in high-risk patients without contraindications.</AbstractText>This was a multicenter, observational, cross-sectional st... |
11,497 | Efficacy of amiodarone in patients with atrial fibrillation with and without left ventricular dysfunction: a pooled analysis of AFFIRM and AF-CHF trials. | Despite amiodarone's established safety profile in the setting of heart failure, it is unknown whether its impact on cardiovascular outcomes in patients with atrial fibrillation is modulated by left ventricular function.</AbstractText>A pooled analysis of 3,307 patients (age 68.0 ± 0.2 years; 31.1% female) enrolle... |
11,498 | Long-term clinical effects of ventricular pacing reduction with a changeover mode to minimize ventricular pacing in a general pacemaker population. | Right ventricular pacing (VP) has been hypothesized to increase the risk in heart failure (HF) and atrial fibrillation (AF). The ANSWER study evaluated, whether an AAI-DDD changeover mode to minimize VP (SafeR) improves outcome compared with DDD in a general dual-chamber pacemaker population.</AbstractText>ANSWER was a... |
11,499 | Macroscopic morphology of right atrial appendage in humans. | Atrial fibrillation (AF) is a common arrhythmia in elderly people, and in many cases it is responsible for stroke or pulmonary embolism. One of the factors facilitating atrial thrombus formation is anatomical morphology of the atria, and especially the appendages. The pharmacological treatment of arrhythmia is generall... |
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