Unnamed: 0 int64 0 2.34M | titles stringlengths 5 21.5M | abst stringlengths 1 21.5M |
|---|---|---|
11,900 | The Evolving Utility Of Intracardiac Echocardiography In Cardiac Procedures. | Intracardiac echocardiography (ICE) has gained increasing use in electrophysiology due to the need to visualize key anatomic structures. Precise guidance for transseptal puncture and visualization of the pulmonary veins are common essential uses for ICE, but many operators adept at ICE imaging have developed additional... |
11,901 | A Case Of Difficult Epicardial Access For Ablation Of Ventricular Tachcyardia. | We present a case of a 67-year-old patient with nonischemic cardiomyopathy and recurrent sustained ventricular tachycardia of epicardial origin referred for ablation. Due to two previous episodes of cardiac tamponade secondary to implantable cardioverter-defibrillator lead perforation at the time of device implant, the... |
11,902 | Stroke And Bleeding Risk Assessment: Where Are We Now? | Atrial fibrillation (AF) is one of major problems of the contemporary cardiology. Ischaemic stroke is a common complication of the AF, and effective prophylaxis requires treatment with oral anticoagulants. The purpose of this current review article is to provide an overview of the various stroke and bleeding risk asses... |
11,903 | Diastolic Function in Normal Sinus Rhythm vs. Chronic Atrial Fibrillation: Comparison by Fractionation of E-wave Deceleration Time into Stiffness and Relaxation Components. | Although the electrophysiologic derangement responsible for atrial fibrillation (AF) has been elucidated, how AF remodels the ventricular chamber and affects diastolic function (DF) has not been fully characterized. The previously validated Parametrized Diastolic Filling (PDF) formalism models suction-initiated filling... |
11,904 | Ventricular Rate Stabilization In Patients With Permanent Atrial Fibrillation And Single-Chamber Ventricular Pacemaker: RARE-PEARL Study. | <b>Background:</b> In patients with permanent atrial fibrillation (AF) rate irregularity can cause symptoms and impair the pumping function of the heart. Ventricular pacing at a rate close to the mean spontaneous ventricular rate can result in a more stable ventricular rate. Specific algorithms for automatic Ventricula... |
11,905 | The Role Of Renin Angiotensin System In Atrial Fibrillation. | Atrial fibrillation (AF) is the most prevalent arrhythmia and its incidence is on the rise. AF causes significant morbidity and mortality leading to rising AF-related health care costs. There is experimental and clinical evidence from animal and human studies that suggests a role for the renin angiotensin system (RAS) ... |
11,906 | Endocardial focal activation originating from Purkinje fibers plays a role in the maintenance of long duration ventricular fibrillation. | To determine the role of repetitive endocardial focal activations and Purkinje fibers in the maintenance of long duration ventricular fibrillation (LDVF, VF>1 minute) in canine hearts in vivo.</AbstractText>The study was conducted in electrophysiological laboratory of Shanghai Ruijin hospital from July 2010 to Augus... |
11,907 | Continuous ECG monitoring for tracking down atrial fibrillation after stroke: Holter or automated analysis strategy? | Tracking down atrial fibrillation (AF) in the stroke unit is a relevant challenge for the prevention of recurrent AF-related stroke. The optimal terms of use of continuous ECG monitoring (CEM) are unknown. We compared 24-hour routine Holter ECG with two different CEM analysis strategies for AF detection.</AbstractText>... |
11,908 | Atrial fibrosis in a chronic murine model of obstructive sleep apnea: mechanisms and prevention by mesenchymal stem cells. | OSA increases atrial fibrillation (AF) risk and is associated with poor AF treatment outcomes. However, a causal association is not firmly established and the mechanisms involved are poorly understood. The aims of this work were to determine whether chronic obstructive sleep apnea (OSA) induces an atrial pro-arrhythmog... |
11,909 | Evaluation of the complexity of myocardial activation during ventricular fibrillation. An experimental study. | An experimental model is used to analyze the characteristics of ventricular fibrillation in situations of variable complexity, establishing relationships among the data produced by different methods for analyzing the arrhythmia.</AbstractText>In 27 isolated rabbit heart preparations studied under the action of drugs (p... |
11,910 | Distension of the ischemic region predicts increased ventricular fibrillation inducibility following coronary occlusion in swine. | Distension of the ischemic region has been related to an increased incidence of spontaneous ventricular arrhythmias following coronary occlusion. This study analyzed whether regional ischemic distension predicts increased ventricular fibrillation inducibility after coronary occlusion in swine.</AbstractText>In 18 anest... |
11,911 | Update on arrhythmias and cardiac pacing 2013. | This report discusses a selection of the most relevant articles on cardiac arrhythmias and pacing published in 2013. The first section discusses arrhythmias, classified as regular paroxysmal supraventricular tachyarrhythmias, atrial fibrillation, and ventricular arrhythmias, together with their treatment by means of an... |
11,912 | Spanish Catheter Ablation Registry. 12th Official Report of the Spanish Society of Cardiology Working Group on Electrophysiology and Arrhythmias (2012). | This article presents the findings of the 2012 Spanish Catheter Ablation Registry.</AbstractText>Data were collected in 2 ways: retrospectively using a standardized questionnaire, and prospectively using a central database. Each participating center selected its own preferred method of data collection.</AbstractText>Se... |
11,913 | Exome sequencing helped the fine diagnosis of two siblings afflicted with atypical Timothy syndrome (TS2). | Long-QT syndrome (LQTS) causes a prolongation of the QT-interval in the ECG leading to life threatening tachyarrhythmia and ventricular fibrillation. One atypical form of LQTS, Timothy syndrome (TS), is associated with syndactyly, immune deficiency, cognitive and neurological abnormalities as well as distinct cranio-fa... |
11,914 | A prospective clinical study of myocarditis in cases of acute ingestion of paraphenylene diamine (hair dye) poisoning in northern India. | Myocarditis is a unheard and unreported dangerous complication of hair dye ingestion which contains paraphenylene diamine. So a prospective study was planned to assess myocardial damage in regard to clinical profile and outcome with different treatment approaches in patients with oral ingestion of Hair dye.</AbstractTe... |
11,915 | Cardiac electrophysiological alterations in heart/muscle-specific manganese-superoxide dismutase-deficient mice: prevention by a dietary antioxidant polyphenol. | Cardiac electrophysiological alterations induced by chronic exposure to reactive oxygen species and protective effects of dietary antioxidant have not been thoroughly examined. We recorded surface electrocardiograms (ECG) and evaluated cellular electrophysiological abnormalities in enzymatically-dissociated left ventri... |
11,916 | Atrial antitachycardia pacing and managed ventricular pacing in bradycardia patients with paroxysmal or persistent atrial tachyarrhythmias: the MINERVA randomized multicentre international trial. | Atrial fibrillation (AF) is a common comorbidity in bradycardia patients. Advanced pacemakers feature atrial preventive pacing and atrial antitachycardia pacing (DDDRP) and managed ventricular pacing (MVP), which minimizes unnecessary right ventricular pacing. We evaluated whether DDDRP and MVP might reduce mortality, ... |
11,917 | Prevalence and prognostic value of concealed structural abnormalities in patients with apparently idiopathic ventricular arrhythmias of left versus right ventricular origin: a magnetic resonance imaging study. | Routine diagnostic work-up occasionally does not identify any abnormality among patients with monomorphic ventricular arrhythmias (VAs) of left ventricular (LV) origin. Aim of this study was to investigate the value of cardiac MRI (cMRI) for the diagnostic work-up and prognostication of these patients.</AbstractText>Fo... |
11,918 | Relationship between autoantibody to the angiotensin II-1 receptor and cardiovascular manifestations of Graves' disease. | To investigate the role of autoantibody against angiotensin II-1 receptor (AT1-AA) in patients with cardiovascular manifestations of Graves' disease (GD).</AbstractText>The epitope of the second extracellular loop of AT1 receptor (165-191) was synthesized and used as antigens to screen the autoantibody by enzyme linked... |
11,919 | Myotonic dystrophy type 1 mimics and exacerbates Brugada phenotype induced by Nav1.5 sodium channel loss-of-function mutation. | Myotonic dystrophy type 1 (DM1), a muscular dystrophy due to CTG expansion in the DMPK gene, can cause cardiac conduction disorders and sudden death. These cardiac manifestations are similar to those observed in loss-of-function SCN5A mutations, which are also responsible for Brugada syndrome (BrS).</AbstractText>The p... |
11,920 | Epicardial linear electroporation ablation and lesion size. | Electroporation can be used as a nonthermal method to ablate myocardial tissue. However, like with all electrical ablation methods, determination of the energy supplied into the myocardium enhances the clinically required controllability over lesion creation.</AbstractText>To investigate the relationship between the ma... |
11,921 | The ratio of early mitral inflow velocity to global diastolic strain rate as a useful predictor of cardiac outcomes in patients with atrial fibrillation. | Although the ratio of early mitral inflow velocity (E) to global diastolic strain rate (E'sr) has been correlated with left ventricular filling pressure, its relationship with cardiac outcomes in patients with atrial fibrillation (AF) has never been evaluated. The aim of this study was to examine the ability of E/E'sr ... |
11,922 | Left atrial strain provides incremental value for embolism risk stratification over CHA₂DS₂-VASc score and indicates prognostic impact in patients with atrial fibrillation. | The aim of this study was to investigate whether left atrial (LA) strain has incremental value over the CHA2DS2-VASc score for stratifying the risk for embolism in patients with atrial fibrillation (AF) and whether LA strain predicts poststroke mortality.</AbstractText>Consecutive patients with paroxysmal or persistent... |
11,923 | Resuscitation Outcomes Consortium-Amiodarone, Lidocaine or Placebo Study (ROC-ALPS): Rationale and methodology behind an out-of-hospital cardiac arrest antiarrhythmic drug trial. | Despite their wide use, whether antiarrhythmic drugs improve survival after out-of-hospital cardiac arrest (OHCA) is not known. The ROC-ALPS is evaluating the effectiveness of these drugs for OHCA due to shock-refractory ventricular fibrillation or pulseless ventricular tachycardia (VF/VT).</AbstractText>ALPS will rand... |
11,924 | Comparison between ivabradine and low-dose digoxin in the therapy of diastolic heart failure with preserved left ventricular systolic function. | Multicenter trials have demonstrated that in patients with sinus rhythm ivabradine is effective in the therapy of ischemic heart disease and of impaired left ventricular systolic function. Ivabradine is ineffective in atrial fibrillation. Many patients with symptomatic heart failure have diastolic dysfunction with pres... |
11,925 | Clinical characteristics and treatment outcomes of patients with Brugada syndrome in northeastern Thailand. | Brugada syndrome (BrS) is a common genetic cause of sudden cardiac arrest (SCA) due to polymorphic ventricular tachycardia and ventricular fibrillation. The current recommended therapy for high-risk BrS patients is the use of an implantable cardioverter defibrillator (ICD). The present study aimed to report the clinica... |
11,926 | Resuscitated cardiac arrest and prognosis following myocardial infarction. | To determine whether resuscitated cardiac arrest (CA) complicating ST elevation myocardial infarction (STEMI) impacts outcome, particularly in patients surviving to discharge.</AbstractText>Resuscitated CA complicating STEMI is associated with increased inpatient mortality. The impact on later prognosis is unclear.</Ab... |
11,927 | The clinical profile and pathophysiology of atrial fibrillation: relationships among clinical features, epidemiology, and mechanisms. | Atrial fibrillation (AF) is the most common arrhythmia (estimated lifetime risk, 22%-26%). The aim of this article is to review the clinical epidemiological features of AF and to relate them to underlying mechanisms. Long-established risk factors for AF include aging, male sex, hypertension, valve disease, left ventric... |
11,928 | Protection from outpatient sudden cardiac death following ICD removal using a wearable cardioverter defibrillator. | An implantable cardioverter defibrillator (ICD) is effective in preventing sudden cardiac death (SCD). Once an ICD is removed and reimplantation is not feasible, a wearable cardioverter defibrillator (WCD) may be an alternative option. We determined the effectiveness of WCD for SCD prevention in patients who were disch... |
11,929 | Incomplete cure of tachycardia-induced cardiomyopathy secondary to rapid atrial fibrillation by heart rate control without sinus conversion. | It is uncertain whether rate or rhythm control is more favorable for patients experiencing tachycardia-induced cardiomyopathy (TIC) secondary to rapid atrial fibrillation (AF).</AbstractText>We compared the electrophysiological and hemodynamic properties and outcome after AF ablation in 20 patients with a history of de... |
11,930 | Renal dysfunction and clinical outcomes of patients undergoing ICD and CRTD implantation: data from the Israeli ICD registry. | Implantable cardioverter defibrillators (ICDs) and cardiac resynchronization therapy (CRT) reduce mortality in patients with heart failure (HF) and left ventricular dysfunction. However, their efficacy in patients with chronic kidney disease (CKD) is controversial.</AbstractText>We examined the association between rena... |
11,931 | Time-domain T-wave alternans is strongly associated with a history of ventricular fibrillation in patients with Brugada syndrome. | T-wave alternans (TWA) is an indicator of vulnerability to ventricular arrhythmias and is useful for predicting sudden cardiac death (SCD) in patients with various structural heart diseases. We evaluated whether high levels of time-domain TWA on ambulatory ECG (AECG) are associated with a history of ventricular fibrill... |
11,932 | Pathophysiology, prevention, and treatment of commotio cordis. | Commotio cordis is increasing described and it is now clear that this phenomenon is an important cause of sudden cardiac death on the playing field. Victims are predominantly young, male, and struck in the left chest with a ball. An animal model has been developed and utilized to explore the important variables and mec... |
11,933 | A shocking past: a walk through generations of defibrillation development. | Defibrillation is one of the most successful and widely recognized applications of electrotherapy. Yet the historical road to its first successful application in a patient and the innovative adaptation to an implantable device is marred with unexpected turns, political and personal setbacks, and public and scientific c... |
11,934 | Valsartan improves the electrophysiological characteristics of left ventricular hypertrophic myocardium in spontaneously hypertensive rats. | The objective was to investigate the effects of valsartan on the electrophysiological characteristics of left ventricular hypertrophic myocardium in spontaneously hypertensive rats (SHR). A total of 24 10-week-old male SHR were divided into two groups: valsartan and non-valsartan groups (n=12 in each). Twelve 10-week-o... |
11,935 | Catheter ablation related mitral valve injury: the importance of early recognition and rescue mitral valve repair. | An increasing number of catheter ablations involve the mitral annular region and valve apparatus, increasing the risk of catheter interaction with the mitral valve (MV) complex. We review our experience with catheter ablation-related MV injury resulting in severe mitral regurgitation (MR) to delineate mechanisms of inj... |
11,936 | Compatibility of electroanatomical mapping systems with a concurrent percutaneous axial flow ventricular assist device. | Hemodynamic instability hinders activation and entrainment mapping during ventricular tachycardia ablation. The Impella 2.5 microaxial flow device (MFD; Abiomed Inc., Danvers, MA, USA) is used to prevent hemodynamic instability during electrophysiologic study. However, electromagnetic interference (EMI) generated by th... |
11,937 | A comparative study on the effect of amiodarone and metaprolol for prevention of arrythmias after open heart surgery. | The aim of this study was to compare the effect of amiodarone and metaprolol in prevention of atrial fibrillation in patients, following open heart surgery.</AbstractText>This prospective study was carried out between May 2008 to Nov. 2010, and comprised a total of 50 patients with normal preoperative sinus rhythm unde... |
11,938 | Very long-term durability of the edge-to-edge repair for isolated anterior mitral leaflet prolapse: up to 21 years of clinical and echocardiographic results. | To assess the very long-term clinical and echocardiographic results of the edge-to-edge repair for mitral regurgitation (MR) due to isolated prolapse or flail of the anterior leaflet.</AbstractText>From 1991 to 2004, 139 patients (age, 54±14.4 years; left ventricular ejection fraction 56%±7.8%, New York Heart... |
11,939 | Outcomes of out-of-hospital cardiac arrest by public location in the public-access defibrillation era. | The strategy to place public-access automated external defibrillators (AEDs) has not yet been established in real settings.</AbstractText>This, prospective, population-based observational study in Osaka, Japan, included consecutive out-of-hospital cardiac arrest (OHCA) patients with resuscitation attempts during 7 year... |
11,940 | Atrial arrhythmias after lung transplant: underlying mechanisms, risk factors, and prognosis. | Atrial arrhythmias (AAs) early after lung transplant are frequent and have a significant impact on morbidity and mortality. However, the pathogenesis of AAs after lung transplant remains incompletely understood. In this study we aimed to determine the prevalence of atrial fibrillation (AF) and other AAs, as well as ris... |
11,941 | Main complications of mild induced hypothermia after cardiac arrest: a review article. | The aim of the present study is to assess the complications of mild induced hypothermia (MIH) in patients with cardiac arrest. Presently, based on the guidelines of the American heart Association, MIH following successful cardiopulmonary resuscitation (CPR) in unconscious adult patients due to ventricular fibrillation ... |
11,942 | Adrenaline, terlipressin, and corticoids versus adrenaline in the treatment of experimental pediatric asphyxial cardiac arrest. | To analyze if treatment with adrenaline (epinephrine) plus terlipressin plus corticoids achieves higher return of spontaneous circulation than adrenaline in an experimental infant animal model of asphyxial cardiac arrest.</AbstractText>Prospective randomized animal study.</AbstractText>Experimental department in a Univ... |
11,943 | Cardiac resynchronization therapy: who benefits? | Cardiac resynchronization therapy (CRT) has been well established in multiple large trials to improve symptoms, hospitalizations, reverse remodeling, and mortality in well-selected patients with heart failure when used in addition to optimal medical therapy. Updated consensus guidelines outline patients in whom such th... |
11,944 | Management of hypertrophic cardiomyopathy. | Hypertrophic cardiomyopathy (HCM) is clinically defined as unexplained myocardial hypertrophy, and it is an autosomal dominant disease of the cardiac sarcomere. It is present in 1 in 500 in the general adult population, making it the most common genetic cardiovascular disease. The pathophysiology of HCM is complex, lea... |
11,945 | Therapeutic hypothermia after in-hospital cardiac arrest: a critique. | More than 210,000 in-hospital cardiac arrests occur annually in the United States. Use of moderate therapeutic hypothermia (TH) in comatose survivors after return of spontaneous circulation following out-of-hospital cardiac arrest (OOH-CA) caused by ventricular fibrillation or pulseless ventricular tachycardia is recom... |
11,946 | Heptanol decreases the incidence of ischemia-induced ventricular arrhythmias through altering electrophysiological properties and connexin 43 in rat hearts. | Heptanol is a type of gap junction inhibitor that decreases electrical conduction velocity. However, little is known regarding the effects of heptanol on the arrhythmias induced by regional myocardial ischemia. This study aimed to investigate the effects of heptanol on ventricular arrhythmias and the underlying mechani... |
11,947 | Successful percutaneous coronary intervention during cardiac arrest with use of an automated chest compression device: a case report. | Ventricular tachycardia or fibrillation (VT/VF) in patients with ST-elevation myocardial infarction (STEMI) is associated with poor prognosis. Performing manual chest compressions is a serious obstacle for treatment with percutaneous coronary intervention (PCI). Here we introduce a case with refractory VT/VF where the ... |
11,948 | Incidence and outcome of in-hospital cardiac arrest in the United Kingdom National Cardiac Arrest Audit. | To report the incidence, characteristics and outcome of adult in-hospital cardiac arrest in the United Kingdom (UK) National Cardiac Arrest Audit database.</AbstractText>A prospectively defined analysis of the UK National Cardiac Arrest Audit (NCAA) database. 144 acute hospitals contributed data relating to 22,628 pati... |
11,949 | Sleep-disordered breathing increases the risk of arrhythmias. | Sleep-disordered breathing (SDB) has been consistently associated with increased risk for cardiovascular diseases, including arrhythmias. The purpose of this review is to elucidate the several pathophysiologic pathways such as repetitive hypoxia and reoxygenation, increased oxidative stress, inflammation and sympatheti... |
11,950 | From Clinical Misdiagnosis to Electrophysiological Diagnosis: Two Male Asystole Cases. | Differential diagnosis of epilepsy and syncope may be difficult. Arrhythmias such as asystole, or ventricular fibrillation, may lead to cerebral hypoperfusion mimicking partial or secondary generalized tonic-clonic seizures. While performing an electroencephalogram (EEG) for epilepsy diagnosis, simultaneous electrocard... |
11,951 | [Aortic and mitral valve replacement via right thoracotomy in the case of a patient with severe heart failure following right pneumonectomy]. | We report a case of aortic valve replacement (AVR) and mitral valve replacement (MVR) in a patient with severe left ventricular dysfunction who had undergone right pneumonectomy for lung cancer 14 years previously. A 64-year-old man had cathecolamine-dependent heart failure due to bicuspid aortic valve stenosis, functi... |
11,952 | Evaluation of dronedarone as a therapeutic option for patients with atrial fibrillation. | Atrial fibrillation (AF) is the predominant dysrhythmia affecting approximately 2·4 million people in the United States and over 6 million Europeans. Dronedarone is a benzofuran derivative of amiodarone newly approved in 2009 for the treatment of AF. Here, we comment on the efficacy and safety of dronedarone in pa... |
11,953 | The role of late I Na in development of cardiac arrhythmias. | Late I Na is an integral part of the sodium current, which persists long after the fast-inactivating component. The magnitude of the late I Na is relatively small in all species and in all types of cardiomyocytes as compared with the amplitude of the fast sodium current, but it contributes significantly to the shape an... |
11,954 | Editor's perspective: Atrioventricular nodal reentry tachycardia: chameleon in disguise. | Hayashi et al teach us a sequential approach to question the possibilities that explain observed unusual phenomena and demonstrate the importance of finding a reasonable ablation target that is safe although the explanation of all phenomenon is incomplete. Perhaps future developments of mapping systems and novel signal... |
11,955 | Assessing the performance of the Framingham Stroke Risk Score in the reasons for geographic and racial differences in stroke cohort. | The most well-known stroke risk score is the Framingham Stroke Risk Score (FSRS), which was developed during the higher stroke risk period of the 1990s and has not been validated for blacks. We assessed the performance of the FSRS among participants in the Reasons for Geographic and Racial Differences in Stroke (REGARD... |
11,956 | Re-examining outcomes after unsuccessful out-of-hospital resuscitation in the era of field termination of resuscitation guidelines and regionalized post-resuscitation care. | Dismal prognosis after failed out-of-hospital resuscitation has previously been demonstrated. Changes in resuscitation and post-resuscitation care may affect patient outcomes. We describe characteristics and outcomes of patients with out-of-hospital cardiac arrest (OOHCA) transported to specialty cardiac centers after ... |
11,957 | Differential Release Kinetics of Cardiac Biomarkers in Patients Undergoing Valve Replacement Surgery. | Differential release kinetics of cardiac biomarkers including brain natriuretic peptide (BNP), Troponin-I, and CK-MB following valve replacement (VR) are not well characterized.</AbstractText>We serially measured these biomarkers 24 hours prior, six hours, 24 hours, 48 hours, and one month following mitral/aortic VR in... |
11,958 | Efficacy of chest compressions directed by end-tidal CO2 feedback in a pediatric resuscitation model of basic life support. | End-tidal carbon dioxide (ETCO2) correlates with systemic blood flow and resuscitation rate during cardiopulmonary resuscitation (CPR) and may potentially direct chest compression performance. We compared ETCO2-directed chest compressions with chest compressions optimized to pediatric basic life support guidelines in a... |
11,959 | Troponin elevation after radiofrequency catheter ablation of atrial fibrillation: relevance to AF substrate, procedural outcomes, and reverse structural remodeling. | Although radiofrequency ablation creates myocardial necrosis leading to troponin T (TnT) release into the systemic circulation, the significance of TnT elevation after atrial fibrillation (AF) ablation is unknown.</AbstractText>To demonstrate a possible mechanism of reverse structural remodeling in the left atrium (LA)... |
11,960 | Collaborative virtual reality based advanced cardiac life support training simulator using virtual reality principles. | Advanced Cardiac Life Support (ACLS) is a series of team-based, sequential and time constrained interventions, requiring effective communication and coordination of activities that are performed by the care provider team on a patient undergoing cardiac arrest or respiratory failure. The state-of-the-art ACLS training i... |
11,961 | Comparisons of prognostic factors between young and elderly patients with chronic heart failure. | The purpose in the present study was to compare prognostic risk factors between older and younger chronic heart failure (CHF) patients.</AbstractText>We examined 598 consecutive CHF patients (476 men and 122 women, mean age 61.4 ± 14.3 years) who underwent cardiopulmonary exercise testing, echocardio... |
11,962 | Effects of potassium/lidocaine-induced cardiac standstill during cardiopulmonary resuscitation in a pig model of prolonged ventricular fibrillation. | Several studies in patients who underwent open heart surgery found that myocardial ischemic damage was reduced by potassium cardioplegia combined with lidocaine infusion. The authors evaluated the effects of potassium/lidocaine-induced cardiac standstill during conventional cardiopulmonary resuscitation (CPR) on myocar... |
11,963 | Global and regional differences in cerebral blood flow after asphyxial versus ventricular fibrillation cardiac arrest in rats using ASL-MRI. | Both ventricular fibrillation cardiac arrest (VFCA) and asphyxial cardiac arrest (ACA) are frequent causes of CA. However, only isolated reports compared cerebral blood flow (CBF) reperfusion patterns after different types of CA, and even fewer reports used methods that allow serial and regional assessment of CBF. We h... |
11,964 | Performance of anesthesia residents during a simulated prone ventricular fibrillation arrest in an anesthetized pediatric patient. | Exposure to rare pediatric anesthesia emergencies varies depending on the residency program. Simulation can provide increased exposure to these rare events, improve performance of residents, and also aid in standardizing the curriculum.</AbstractText>The purpose of this study was to evaluate time to recognize and treat... |
11,965 | F 16915 prevents heart failure-induced atrial fibrillation: a promising new drug as upstream therapy. | Atrial fibrillation (AF) is a common complication of heart failure. The aim of the present study was to investigate the effects of a new pure docosahexaenoic acid derivative called F 16915 in experimental models of heart failure-induced atria dysfunction. The atrial dysfunction-induced AF was investigated (1) in a dog ... |
11,966 | TED-Time and life saving External Defibrillator for home-use. | Sudden Cardiac Death--SCD --is a major unmet health problem that needs urgent and prompt solution. AICDs are very expensive, risky and indicated for a small group of patients, at the highest risk. AEDs--Automatic External Defibrillators--are designed for public places and although safe, cannot enter the home-market due... |
11,967 | Chronic right ventricular apical pacing: adverse effects and current therapeutic strategies to minimize them. | The permanent cardiac pacemaker is the only effective therapy for patients with symptomatic bradycardia and hundreds of millions are implanted worldwide every year. Despite its undisputed clinical benefits, the last two decades have drawn much attention to the negative effects associated with long-term pacing of the ri... |
11,968 | Amiodarone induced epididymitis: a case report. | Amiodarone is an effective drug for life-threatening arrhythmias like recurrent ventricular fibrillation and atrial fibrillation. Amiodarone creates rarely genitourinary side effects are seen. These are epididymitis, testicular dysfunction and impotance. Amiodarone aggregates and triggers inflammation in the head of th... |
11,969 | Differences in clinical characteristics, management and short-term outcome between acute heart failure patients chronic obstructive pulmonary disease and those without this co-morbidity. | <AbstractText Label="AIM-METHODS" NlmCategory="UNASSIGNED">ALARM-HF was a retrospective, observational registry that included 4,953 patients admitted for acute heart failure (AHF) in six European countries, Turkey, Mexico and Australia. Data about respiratory disorders and related medications were available for 4,616 p... |
11,970 | Three vessel coronary cameral fistulae associated with new onset atrial fibrillation and angina pectoris. | Coronary cameral fistulas are abnormal communications between a coronary artery and a heart chamber or a great vessel which are reported in less than 0.1% of patients undergoing diagnostic coronary angiography. All three major coronary arteries are even less frequently involved in fistula formation as it is the case in... |
11,971 | The predictive value of CHADS₂ risk score in post myocardial infarction arrhythmias - a Cardiac Arrhythmias and RIsk Stratification after Myocardial infArction (CARISMA) substudy. | Previous studies have shown substantially increased risk of cardiac arrhythmias and sudden cardiac death in post-myocardial infarction (MI) patients. However it remains difficult to identify the patients who are at highest risk of arrhythmias in the post-MI setting. The purpose of this study was to investigate if CHADS... |
11,972 | Cardiac changes due to electronic control devices? A computer-based analysis of electrical effects at the human heart caused by an ECD pulse applied to the body's exterior. | Electronic control devices (ECDs) deliver high-voltage, low-current energy pulses temporarily paralyzing a person. For the ECD-human interaction, we have developed a computer model using the SEMCAD program within which to simulate the electrical effects throughout the body resulting from the imposition of an ECD pulse ... |
11,973 | Diagnosis and management of patients with inherited arrhythmia syndromes in Europe: results of the European Heart Rhythm Association Survey. | Inherited arrhythmia disorders associated with structurally normal heart (i.e. long and short QT syndrome, Brugada syndrome, catecholaminergic polymorphic ventricular tachycardia, early repolarization syndrome, idiopathic ventricular fibrillation) cause 10% of 1.1 million sudden deaths in Europe and the USA. The purpos... |
11,974 | Clinical reasoning: A 68-year-old man with a first presentation of status epilepticus. | A 64-year-old man with transfusion-dependent myelodysplastic syndrome (MDS), hypertension, chronic obstructive pulmonary disease, hypothyroidism, blindness from treated syphilitic chorioretinitis, and no prior seizure history presented in generalized status epilepticus. His daily home medication regimen included predni... |
11,975 | Electromagnetic interference of implantable cardiac devices from a shoulder massage machine. | Shoulder massage machines have two pads that are driven by solenoid coils to perform a per cussive massage on the shoulders. There have been concerns that such machines might create electromagnetic interference (EMI) in implantable cardiac devices because of the time-varying magnetic fields produced by the alternating ... |
11,976 | Reduction of unnecessary right ventricular pacing by managed ventricular pacing and search AV+ algorithms in pacemaker patients: 12-month follow-up results of a randomized study. | The present study was to assess the reduction of right ventricular pacing (RVP) by pacemaker algorithms of Managed Ventricular Pacing (MVP) and Search AV+ (SAV+) interval over a period of 12 months.</AbstractText>A total of 385 patients indicated for a dual-chamber pacemaker (DC-PM) were enrolled in the prospective, ra... |
11,977 | Cardiac contractility modulation: first experience in heart failure patients with reduced ejection fraction and permanent atrial fibrillation. | Cardiac contractility modulation (CCM) is an electrical therapy for heart failure (HF) with reduced ejection fraction. Sinus rhythm is deemed necessary for effective treatment because the current CCM signal delivery algorithm requires sequential sensing of a p wave, followed by depolarizations at each ventricular lead.... |
11,978 | High prevalence of cardiac involvement in patients with myotonic dystrophy type 1: a cross-sectional study. | Patients with myotonic dystrophy type 1 (DM1) have a three-fold higher risk of sudden cardiac death (SCD) than age-matched healthy controls. Despite numerous attempts to define the cardiac phenotype and natural history, existing literature suffers from low power, selection-bias and lack of controls. Thus, the optimal s... |
11,979 | Electrocardiographic parameters and fatal arrhythmic events in patients with Brugada syndrome: combination of depolarization and repolarization abnormalities. | This study aimed to determine the usefulness of the combination of several electrocardiographic markers on risk assessment of ventricular fibrillation (VF) in patients with Brugada syndrome (BrS).</AbstractText>Detection of high-/low-risk BrS patients using a noninvasive method is an important issue in the clinical set... |
11,980 | Outcomes by rescue shock number during the metabolic phase of porcine ventricular fibrillation resuscitation. | Optimal resuscitation duration before the first rescue shock (RS) to maximize the probability of success after prolonged ventricular fibrillation (VF) cardiac arrest remains unknown. The purpose of this study was to determine the occurrence of return of spontaneous circulation (ROSC) and survival by RS attempt after 12... |
11,981 | Relation of interatrial block to new-onset atrial fibrillation in patients with Chagas cardiomyopathy and implantable cardioverter-defibrillators. | Chagas cardiomyopathy is an endemic disease in Latin America. A significant proportion of patients develop atrial fibrillation (AF), which may result in stroke and increased morbidity or mortality. Interatrial block (IAB) has been associated with the development of AF in different clinical scenarios. The aim of our stu... |
11,982 | Effectiveness of atrial fibrillation monitor characteristics to predict severity of symptoms of atrial fibrillation. | The goal of treatment for atrial fibrillation (AF) is often to control symptoms. It remains unclear whether targets for treatment such as AF rate or AF burden are correlated with AF symptom severity. Two hundred eighty-six patients completed a questionnaire of their general health and well-being, including a detailed A... |
11,983 | Impaired cerebral mitochondrial oxidative phosphorylation function in a rat model of ventricular fibrillation and cardiopulmonary resuscitation. | Postcardiac arrest brain injury significantly contributes to mortality and morbidity in patients suffering from cardiac arrest (CA). Evidence that shows that mitochondrial dysfunction appears to be a key factor in tissue damage after ischemia/reperfusion is accumulating. However, limited data are available regarding th... |
11,984 | Electrophysiological profile of vernakalant in an experimental whole-heart model: the absence of proarrhythmia despite significant effect on myocardial repolarization. | The most recent European Society of Cardiology (ESC) update on atrial fibrillation has introduced vernakalant (VER) for pharmacological cardioversion of atrial fibrillation. The aim of the present study was to investigate the safety profile of VER in a sensitive model of proarrhythmia.</AbstractText>In 36 Langendorff-p... |
11,985 | Factors associated with atrial fibrillation in rheumatic mitral stenosis. | Atrial fibrillation is a complication of mitral valve stenosis that causes several adverse neurologic outcomes. Our objective was to establish a mathematical model to predict the risk of atrial fibrillation in patients with mitral stenosis.</AbstractText>Of 819 patients with mitral stenosis who were screened, 603 were ... |
11,986 | First-degree atrioventricular block is associated with advanced atrioventricular block, atrial fibrillation and left ventricular dysfunction in patients with hypertension. | Clinical significance of first-degree atrioventricular block (AVB) have not been known in patients with hypertension. This study was performed to elucidate long-term prognosis of first-degree AVB in patients with hypertension.</AbstractText>We included 3816 patients (mean age, 61.0 ± 10.6 years; men,... |
11,987 | Status 2 patients had poor prognosis without mechanical circulatory support. | Indication for mechanical circulatory support (MCS) has been a matter of debate in less sick status 2 patients.</AbstractText>Data were obtained from 183 consecutive patients assigned to stage D heart failure (HF) who were evaluated by the institutional review board of the University of Tokyo Hospital and then listed f... |
11,988 | Multiform premature ventricular contractions and polymorphic ventricular tachycardia caused by Purkinje activity with slow conduction in idiopathic ventricular fibrillation. | In several cases with idiopathic ventricular fibrillation (VF), VF was initiated by premature ventricular contractions (PVCs) from the Purkinje system. However, the precise characteristics of the Purkinje activity in patients with idiopathic VF remain unclear. We performed an electrophysiological study in a patient wit... |
11,989 | Impact of pulmonary vein isolation on left bundle branch block following tachycardia-induced cardiomyopathy in a patient with persistent atrial fibrillation. | A 61-year-old man was referred to our hospital with exertional dyspnea. Electrocardiography showed atrial fibrillation (AF) with a heart rate of 116 bpm and left bundle branch block (LBBB). Chest radiography demonstrated pulmonary congestion and cardiomegaly with a cardiothoracic ratio of 57%. Transthoracic echocardiog... |
11,990 | Transient and rapid QRS-widening associated with a J-wave pattern predicts impending ventricular fibrillation in experimental myocardial infarction. | Certain types of the early repolarization phenomenon, previously considered to be benign, have been reported to be associated with ventricular fibrillation (VF), both in population-based studies and in the myocardial infarction (MI) settings.</AbstractText>To analyze whether QRS widening and appearance of a J-wave patt... |
11,991 | Silent atrial fibrillation after ischemic stroke or transient ischemic attack: interest of continuous ECG monitoring. | Since atrial fibrillation (AF) may be undiagnosed when asymptomatic and paroxysmal, we aimed to investigate the incidence and determinants of silent AF in patients with acute ischemic stroke or transient ischemic attack (TIA).</AbstractText>Consecutive patients admitted to the Stroke Unit of the University Hospital of ... |
11,992 | The effect of acute simvastatin administration on the severity of arrhythmias resulting from ischaemia and reperfusion in the canine: Is there a role for nitric oxide? | The present study has examined the effects and the possible mechanisms of a single dose of simvastatin on the severity of arrhythmias resulting from a 25min occlusion and reperfusion of the left anterior descending coronary artery in anaesthetized (chloralose and urethane) dogs. The control animals (n=16) were given th... |
11,993 | Ventricular rate monitoring as a tool to predict and prevent atrial fibrillation-related inappropriate shocks in heart failure patients treated with cardiac resynchronisation therapy defibrillators. | Inappropriate implantable cardioverter defibrillators (ICD) therapies have been associated with multiple adverse effects, including worse quality of life and prognosis. We evaluated the possibility of predicting atrial fibrillation (AF)-related inappropriate ICD shocks through continuous monitoring of device diagnostic... |
11,994 | Renal denervation: effects on atrial electrophysiology and arrhythmias. | Atrial fibrillation (AF) is the most common sustained arrhythmia and is associated with significant morbidity and mortality. Currently, atrial endocardial catheter ablation, mainly targeting focal discharges in the pulmonary veins, is the most widely used interventional treatment of drug-refractory AF. Despite technica... |
11,995 | Expanding role of SK channels in cardiac electrophysiology. | The small conductance calcium-activated potassium (SK) channels are an important group of potassium-selective ion channels. SK channels display more pronounced expression in the atrium relative to the ventricle. Current evidence relating to the functional role of SK channels in the atria is conflicting and whether thes... |
11,996 | Comprehensive clinical evaluation of a large Spanish family with Anderson-Fabry disease, novel GLA mutation and severe cardiac phenotype. | Fabry disease is an X-linked multisystemic lysosomal-storage condition. We describe a large family with a novel GLA mutation: p.M187R/g7219 T>G.</AbstractText>Anamnesis/physical-exam, blood/urine analysis, α-Gal-A activity and/or genetic study of at-risk individuals and multidisciplinary evaluation in confirme... |
11,997 | Incremental value of three-dimensional echocardiography in the evaluation of left ventricular size in mitral regurgitation: a follow-up study after mitral valve surgery. | Increased left ventricular (LV) dimensions are an indication for surgery in patients with asymptomatic mitral regurgitation, but M-mode or two-dimensional measurements have known limitations. The aim of this study was to determine the value of three-dimensional echocardiography in predicting postoperative outcomes afte... |
11,998 | Continuously adjusting CRT therapy: clinical impact of adaptive cardiac resynchronization therapy. | Cardiac resynchronization therapy (CRT) is a well-established therapy to reduce morbidity and mortality in patients with moderate and severe symptomatic congestive heart failure. Left ventricular (LV) pacing that fuses with intrinsic right ventricular (RV) conduction results in similar or even better cardiac performanc... |
11,999 | Mitral valve repair versus replacement in patients with ischaemic mitral regurgitation and depressed ejection fraction: risk factors for early and mid-term mortality†. | Mitral valve (MV) surgery for ischaemic mitral regurgitation (IMR) in patients with depressed left ventricular ejection fraction (LVEF) is associated with poor outcomes. The optimal surgical strategy for IMR in these patients remains controversial. The objective of this study was to compare the early mortality and mid-... |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.