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12,000 | Disturbed Left Atrial Function is Associated with Paroxysmal Atrial Fibrillation in Hypertension. | Hypertension is the most prevalent and modifiable risk factor for atrial fibrillation. The pressure overload in the left atrium induces pathophysiological changes leading to alterations in contractile function and electrical properties.</AbstractText>In this study our aim was to assess left atrial function in hypertens... |
12,001 | At-admission risk stratification for in-hospital life-threatening ventricular arrhythmias and death in non-ST elevation myocardial infarction patients. | Identification of patients with non-ST elevation acute myocardial infarction (NSTEMI) at higher risk of in-hospital life-threatening ventricular arrhythmias (LT-VA) and death is crucial for determining appropriate levels of care/monitoring during hospitalisation. We assessed predictors of in-hospital LT-VA and all-caus... |
12,002 | Handheld ECG in analysis of arrhythmia and heart rate variability in children with Fontan circulation. | Our aim was to evaluate the intermittent use of a handheld ECG system for detecting silent arrhythmias and cardiac autonomic dysfunction in children with univentricular hearts.</AbstractText>Twenty-seven patients performed intermittent ECG recordings with handheld devices during a 14-day period. A manual arrhythmia ana... |
12,003 | Clinical significance of left ventricular apical aneurysms in hypertrophic cardiomyopathy patients: the role of diagnostic electrocardiography. | Some patients with hypertrophic cardiomyopathy (HCM) develop left ventricular apical aneurysm, leading to serious cardiovascular complications. The aims of this study were to identify the incidence and clinical course of HCM patients with apical aneurysms in Japan, and to evaluate the role of electrocardiography (ECG) ... |
12,004 | Ambulatory cardiac monitoring for discharged emergency department patients with possible cardiac arrhythmias. | Many emergency department (ED) patients have symptoms that may be attributed to arrhythmias, necessitating outpatient ambulatory cardiac monitoring. Consensus is lacking on the optimal duration of monitoring. We describe the use of a novel device applied at ED discharge that provides continuous prolonged cardiac monito... |
12,005 | Trying to predict the unpredictable: Variations in device-based daily monitored diagnostic parameters can predict malignant arrhythmic events in patients undergoing cardiac resynchronization therapy. | The aim of this study was to evaluate the value of device-based diagnostic parameters in predicting ventricular arrhythmias in cardiac resynchronization therapy (CRT) recipients.</AbstractText>Ninety-six CRT-D patients participating in TRUST CRT Trial were analyzed. The inclusion criteria were: heart failure in NYHA &#... |
12,006 | [Hypoglycemia and cardiac arrhythmia in patients with diabetes mellitus type 2]. | Hypoglycemia is a common and potentially life-threatening adverse effect of inappropriate diabetes treatment. Typical cardiac complications are ischemia with angina pectoris, myocardial infarction, stroke and arrhythmias, such as atrial fibrillation (AF), ventricular tachycardia and heart failure. Elderly multimorbid p... |
12,007 | Worldwide experience with a totally subcutaneous implantable defibrillator: early results from the EFFORTLESS S-ICD Registry. | The totally subcutaneous implantable-defibrillator (S-ICD) is a new alternative to the conventional transvenous ICD system to minimize intravascular lead complications. There are limited data describing the long-term performance of the S-ICD. This paper presents the first large international patient population collecte... |
12,008 | Surviving two hours of ventricular fibrillation in accidental hypothermia. | Cardiac arrest as a consequence of deep accidental hypothermia is associated with high mortality. Standardized prehospital management as well as rewarming with extracorporeal circulation (ECC) are important factors to improve survival. The objective of this case report is to illustrate the importance of effective cardi... |
12,009 | Clinical correlates of echocardiographic tissue velocity imaging abnormalities of the left atrial wall during atrial fibrillation. | In patients with atrial fibrillation (AF), echocardiographic tissue velocity imaging (TVI) enables assessment of electrical and structural remodelling by measuring, respectively, the AF cycle length (AFCL-TVI) and the atrial fibrillatory wall motion velocity (AFV-TVI). We investigated the clinical and echocardiographic... |
12,010 | Early prosthetic valve degeneration with Mitroflow aortic valves: determination of incidence and risk factors†. | We describe a cluster of early valve degeneration (EVD) in a series of 281 Mitroflow valves implanted during 1999-2013. Patients with EVD were identified as having symptomatic stenosis or regurgitation within 6 years of implantation leading to reoperation.</AbstractText>Freedom from reoperation was estimated by Kaplan-... |
12,011 | Significance of repeat programmed ventricular stimulation at electrophysiology study for arrhythmia prediction after acute myocardial infarction. | The prognostic significance of a second programmed ventricular stimulation (PVS) at electrophysiology study (EPS), when the first PVS is negative for inducible ventricular tachycardia (VT), in patients following myocardial infarction (MI) is unknown.</AbstractText>Consecutive ST-elevation MI patients with left ventricu... |
12,012 | Implantable defibrillators with enhanced detection algorithms: detection performance and safety results from the PainFree SST study. | Implantable defibrillators (ICD) are highly effective in reducing arrhythmia-related mortality. ICD shock therapy has been shown to increase psychological distress, health care utilization, and is associated with increased mortality. The Protecta ICDs (Medtronic Inc., Minneapolis, MN, USA) have algorithms designed to r... |
12,013 | Extracorporeal life support for cardiac arrest in a paediatric emergency department. | The initiation of extracorporeal membrane oxygenation (ECMO) in the emergency department (ED) is a rare event. Herein, we report a case of acute fulminant myocarditis in a nine-year-old girl who was successfully resuscitated by early initiation of ECMO support in the paediatric ED of KK Women's and Children's Hospital,... |
12,014 | Permanent leadless cardiac pacing: results of the LEADLESS trial. | Conventional cardiac pacemakers are associated with several potential short- and long-term complications related to either the transvenous lead or subcutaneous pulse generator. We tested the safety and clinical performance of a novel, completely self-contained leadless cardiac pacemaker.</AbstractText>The primary safet... |
12,015 | Bedside tool for predicting the risk of postoperative atrial fibrillation after cardiac surgery: the POAF score. | Atrial fibrillation (AF) remains the most common complication after cardiac surgery. The present study aim was to derive an effective bedside tool to predict postoperative AF and its related complications.</AbstractText>Data of 17 262 patients undergoing adult cardiac surgery were retrieved at 3 European university hos... |
12,016 | Cerebral oximetry levels during CPR are associated with return of spontaneous circulation following cardiac arrest: an observational study. | Cerebral oximetry using near-infrared spectroscopy measures regional cerebral oxygen saturation (rSO2) non-invasively and may provide information regarding the quality of cerebral oxygen perfusion. We determined whether the level of rSO2 obtained during cardiopulmonary resuscitation is associated with return of spontan... |
12,017 | Effects of Nardostachys chinensis on spontaneous ventricular arrhythmias in rats with acute myocardial infarction. | To investigate the effects and mechanisms of Nardostachys chinensis (NC) on spontaneous ventricular arrhythmias in rats with hyper-acute myocardial infarction (AMI).</AbstractText>Seventy-two rats were randomly divided into the control group (n = 24), metoprolol group (n = 24), and the NC group (n = 24). Premature vent... |
12,018 | Ranolazine for the prevention or treatment of atrial fibrillation: a systematic review. | The use of currently available antiarrhythmic drugs for atrial fibrillation is limited by their moderate efficacy and the considerable proarrhythmic risk. Ranolazine, an antianginal agent, has been reported to possess antiarrhythmic properties, resulting in a reduction of supraventricular and ventricular arrhythmias. W... |
12,019 | B-type natriuretic peptide predicts stroke of presumable cardioembolic origin in addition to coronary artery calcification. | B-type natriuretric peptide (BNP) is a marker of cardiac dysfunction that is released from myocytes in response to ventricular wall stress. Previous studies suggested that BNP predicts stroke events in addition to classical risk factors. It was suggested that the BNP-associated risk results from coronary atherosclerosi... |
12,020 | Derivation of indices of left ventricular contractility in the setting of continuous-flow left ventricular assist device support. | It is important to accurately monitor residual cardiac function in patients under long-term continuous-flow left ventricular assist device (cfLVAD) support. Two new measures of left ventricular (LV) chamber contractility in the cfLVAD-unloaded ventricle include IQ, a regression coefficient between maximum flow accelera... |
12,021 | Echocardiography-based hemodynamic management of left ventricular diastolic dysfunction: a feasibility and safety study. | Patients with left ventricular diastolic dysfunction (LVDD) are at increased risk of postoperative adverse events. The primary aim of this study was to evaluate the safety and feasibility of using echocardiography-guided hemodynamic management (EGHEM) during surgery in subjects with LVDD compared to conventional manage... |
12,022 | Association of electrocardiographic and imaging surrogates of left ventricular hypertrophy with incident atrial fibrillation: MESA (Multi-Ethnic Study of Atherosclerosis). | This study sought to examine the association between left ventricular hypertrophy (LVH), defined by cardiac magnetic resonance (CMR) and electrocardiography (ECG), with incident atrial fibrillation (AF).</AbstractText>Previous studies of the association between AF and LVH were based primarily on echocardiographic... |
12,023 | Outcomes in pacemaker-dependent patients upgraded from conventional pacemakers to cardiac resynchronization therapy-defibrillators. | Pacemaker-dependent patients with left ventricular dysfunction benefit from upgrade to cardiac resynchronization therapy (CRT). Those at low risk for ventricular tachyarrhythmias may benefit similarly from upgrade to a CRT-defibrillator or CRT-pacemaker.</AbstractText>To determine whether coronary artery disease (CAD),... |
12,024 | Obesity and sleep apnea are independently associated with adverse left ventricular remodeling and clinical outcome in patients with atrial fibrillation and preserved ventricular function. | Obesity is associated with the development of atrial fibrillation (AF), and both obesity and AF are independently associated with the development of heart failure with preserved ejection fraction. We tested the hypothesis that sleep apnea (SA) would have a body mass index (BMI) independent association with adverse left... |
12,025 | Electrocardiographic Findings in Takotsubo Cardiomyopathy: ECG Evolution and Its Difference from the ECG of Acute Coronary Syndrome. | Electrocardiogram (ECG) manifestations of takotsubo cardiomyopathy (TC) produce ST-segment elevation or T-wave inversion, mimicking acute coronary syndrome (ACS). We describe the ECG manifestation of TC, including ECG evolution, and its different points from ACS.</AbstractText>We studied 37 consecutive patients (age 67... |
12,026 | Torsade de pointes as a reperfusion arrhythmia following intravenous thrombolytic therapy. | Many types of cardiac arrhythmias have been noted following acute myocardial infarction. Polymorphic ventricular arrhythmias (polymorphic ventricular tachycardia and ventricular fibrillation) related to an acute myocardial infarction generally strike during the hyperacute phase, are clearly related to ischaemia and are... |
12,027 | Left ventricular diastolic dysfunction is associated with cerebral white matter lesions (leukoaraiosis) in elderly patients without ischemic heart disease and stroke. | Cerebral white matter lesions (WML) are known to increase with age, as is left ventricular (LV) diastolic dysfunction with normal contraction. Although aging is a common risk factor, the link between these diseases is not fully understood. The aim was to clarify this relationship, using the ratio between early diastoli... |
12,028 | [Public access defibrillation: successful cardiopulmonary resuscitation due to automatic external defibrillator at traffic accident]. | A 65-year-old man collapsed after he stepped out of his car after a traffic accident.</AbstractText>Fortunately, two police officers on a routine patrol in the area were quickly on the scene and started cardiopulmonary resuscitation. A passerby noticed that the patient was in distress and that an automatic defibrillato... |
12,029 | Effects of the self-myocardial retroperfusion with aortic-coronary sinus shunt on cardiac output and ischemic events in high-risk patients undergoing OPCAB surgery. | Despite controversies, off-pump coronary artery bypass (OPCAB) surgery has become a routine procedure. Obvious advantages have been demonstrated in high-risk patients. However, OPCAB surgery has limitations in specific high-risk situations with hazards of operative deleterious events. We describe an innovative procedur... |
12,030 | Association of time of occurrence of electrical heart storms with environmental physical activity. | Many publications in recent decades have reported a temporal link between medical events and environmental physical activity. The aim of this study was to analyze the time of occurrence of electrical heart storms against levels of cosmological parameters.</AbstractText>The sample included 82 patients (71 male) with isc... |
12,031 | Contrasting effects of HMR1098 on arrhythmogenicity in a Langendorff-perfused phase-2 myocardial infarction rabbit model. | The stability of dynamic factors has been reported to play a role in the antiarrhythmic actions of adenosine triphosphate (ATP)-sensitive potassium channel (KATP) opener in phase-2 myocardial infarction (MI) hearts. In the situation of the downregulation of KATP, the effects of KATP blocker (HMR1098) on the dynamic fac... |
12,032 | MitraClip implantation for high risk patients with severe mitral regurgitation: the Sheba experience. | Percutaneous edge-to-edge mitral valve repair using the MitraClip system has evolved as a new tool in the treatment of mitral regurgitation (MR).</AbstractText>To present our initial experience with MitraClip implantation in 20 high risk patients at Sheba Medical Center.</AbstractText>Twenty high surgical risk patients... |
12,033 | Incident stroke is associated with common carotid artery diameter and not common carotid artery intima-media thickness. | The common carotid artery interadventitial diameter is measured on ultrasound images as the distance between the media-adventitia interfaces of the near and far walls. It is associated with common carotid intima-media thickness (IMT) and left ventricular mass and might therefore also have an association with incident s... |
12,034 | Impacts of patient characteristics on the effectiveness of landiolol in AF/AFL patients complicated with LV dysfunction: Subgroup analysis of the J-Land study. | Results from the multicenter trial (J-Land study) of landiolol versus digoxin in atrial fibrillation (AF) and atrial flutter (AFL) patients with left ventricular (LV) dysfunction revealed that landiolol was more effective for controlling rapid HR than digoxin. The subgroup analysis for patient characteristics was condu... |
12,035 | A rare manifestation of atrial fibrillation in the presence of Wolff-Parkinson-White syndrome: tachycardia-induced cardiomyopathy. | We report a 68-year-old man who presented with heart failure and atrial fibrillation (AF) with rapid ventricular response and wide QRS complexes. Tachycardia-induced cardiomyopathy (TIC) due to persistent AF developing on the basis of Wolff-Parkinson-White (WPW) syndrome was considered. Signs and symptoms of heart fail... |
12,036 | Malignant ventricular arrhythmias after off-pump coronary artery bypass. | <AbstractText Label="BACKGROUND/PURPOSE" NlmCategory="OBJECTIVE">Sustained ventricular tachycardia and ventricular fibrillation (VT/VF) are rare complications after coronary surgery. Off-pump coronary artery bypass (OPCAB) was developed to decrease postoperative complications. No studies to date have specifically addre... |
12,037 | Comparison of end-tidal carbon dioxide levels with cardiopulmonary resuscitation success presented to emergency department with cardiopulmonary arrest. | To measure end-tidal carbon dioxide pressure (PetCO2) in preset interval in order to evaluate the efficiency of cardiopulmonary resuscitation (CPR) performed on patients in cardiopulmonary arrest, evaluate the validity of PetCO2 in predicting the mortality and finally assess the PetCO2 levels of the patients in cardiop... |
12,038 | Dynamic alterations of connexin43, matrix metalloproteinase-2 and tissue inhibitor of matrix metalloproteinase-2 during ventricular fibrillation in canine. | The aim of this study is to investigate the dynamic alterations of cardiac connexin 43 (Cx43), matrix metalloproteinase-2 (MMP-2) and tissue inhibitor of metalloproteinase-2 (TIMP-2) in the setting of different ventricular fibrillation (VF) duration. In this study, thirty-two dogs were randomly divided into sham contro... |
12,039 | The low triiodothyronine syndrome: a strong predictor of low cardiac output and death in patients undergoing coronary artery bypass grafting. | There is strong clinical and experimental evidence that altered thyroid homeostasis negatively affects survival in cardiac patients, but a negative effect of the low triiodothyronine (T3) syndrome on the outcome of coronary artery bypass grafting (CABG) has not been demonstrated. This study was designed to evaluate the... |
12,040 | Chronic atrial fibrillation in presence of aortic stenosis in a patient with polysplenia syndrome. | We report a rare case of "situs viscerum ambiguous" with polysplenia syndrome, in a 69 year old female patient with aortic stenosis and chronic atrial fibrillation. The presenting symptom was dyspnoea on moderate exertion and an ECG showed supra ventricular arrhythmia. Patients trans-thoracic echocardiogram revealed a ... |
12,041 | Median frequencies of prolonged ventricular fibrillation treated by V-A ECMO correspond to a return of spontaneous circulation rate. | The aim of our study was to analyze, in a pig model of prolonged ventricular fibrillation (VF) treated by veno-arterial extracorporeal membrane oxygenation (ECMO), the time dependent changes of VF wavelet frequency obtained from intracardial signals and its relations to return of spontaneous circulation (ROSC).</Abstra... |
12,042 | Echocardiographic diagnosis of constrictive pericarditis: Mayo Clinic criteria. | Constrictive pericarditis is a potentially reversible cause of heart failure that may be difficult to differentiate from restrictive myocardial disease and severe tricuspid regurgitation. Echocardiography provides an important opportunity to evaluate for constrictive pericarditis, and definite diagnostic criteria are n... |
12,043 | [Examination of relationship between lactate clearance and neurologic outcome in cardiac arrest induced by ventricular fibrillation]. | A significant relationship between lactate clearance and mortality rates in cardiac arrest cases has been reported. However, the relationship between lactate clearance and neurologic outcomes in cardiac arrest cases is not clear. We examined lactate clearance in cardiac arrest cases induced by ventricular fibrillation.... |
12,044 | Combination of intravenous ascorbic acid administration and hypothermia after resuscitation improves myocardial function and survival in a ventricular fibrillation cardiac arrest model in the rat. | Intravenous (IV) administration of ascorbic acid during cardiopulmonary resuscitation (CPR) was reported to facilitate defibrillation and improves survival in ventricular fibrillation (VF) cardiac arrest. We investigated whether IV administration of ascorbic acid after return of spontaneous circulation (ROSC) can impro... |
12,045 | Recommendations for management of equine athletes with cardiovascular abnormalities. | Murmurs and arrhythmias are commonly detected in equine athletes. Assessing the relevance of these cardiovascular abnormalities in the performance horse can be challenging. Determining the impact of a cardiovascular disorder on performance, life expectancy, horse and rider or driver safety relative to the owner's futur... |
12,046 | Elective use of femoro-femoral cardiopulmonary bypass during transcatheter aortic valve implantation. | Elective use of normothermic cardiopulmonary bypass (CPB) may reduce the risks associated with the transcatheter aortic valve implantation (TAVI) procedure in selected high-risk TAVI patients.</AbstractText>Between April 2008 and August 2013, 1177 consecutive patients underwent TAVI. Elective normothermic femoro-femora... |
12,047 | Ventricular tachycardia in a disseminated MDR-TB patient: a case report and brief review of literature. | Although significant breakthroughs have been achieved in tuberculosis management, we still encounter numerous difficulties in diagnosis and treatment of the disease. Additionally, a new challenge, multidrug-resistant tuberculosis (MDR-TB) with unspecific clinical presentation, often results in delayed diagnosis. In thi... |
12,048 | Mapping and ablation of ventricular fibrillation-how and for whom? | The involvement of the Purkinje system in a subset of patients with idiopathic ventricular fibrillation or polymorphic VT/VF related to structural heart disease was first demonstrated in the pioneering work of Michel Haissaguerre and co-workers (Circulation 106:962-967, 2002 and Lancet 359:677-678, 2002). It is very im... |
12,049 | Atrial electromechanical coupling intervals in pregnant subjects. | The aim of this study was to evaluate atrial conduction abnormalities obtained by tissue Doppler imaging (TDI) and electrocardiogram analysis in pregnant subjects.</AbstractText>A total of 30 pregnant subjects (28 ± 4 years) and 30 controls (28 ± 3 years) were included. Systolic and diastolic left ventricular... |
12,050 | Role of the autonomic nervous system in modulating cardiac arrhythmias. | The autonomic nervous system plays an important role in the modulation of cardiac electrophysiology and arrhythmogenesis. Decades of research has contributed to a better understanding of the anatomy and physiology of cardiac autonomic nervous system and provided evidence supporting the relationship of autonomic tone to... |
12,051 | Extracorporeal membrane oxygenation support in acardia. | In extreme situations, such as hyperacute rejection of heart transplant or major heart trauma, heart preservation may not be possible. Our experimental team works on a project of peripheral extracorporeal membrane oxygenation (ECMO) support in acardia as a bridge to heart transplantation or artificial heart implantatio... |
12,052 | Design of a phase 2b trial of intracoronary administration of AAV1/SERCA2a in patients with advanced heart failure: the CUPID 2 trial (calcium up-regulation by percutaneous administration of gene therapy in cardiac disease phase 2b). | Impaired cardiac isoform of sarco(endo)plasmic reticulum Ca(2+) ATPase (SERCA2a) activity is a key abnormality in heart failure patients with reduced ejection fraction. The CUPID 2 (Calcium Up-Regulation by Percutaneous Administration of Gene Therapy in Cardiac Disease Phase 2b) trial is designed to evaluate whether in... |
12,053 | Prognostic value of the physical examination in patients with heart failure and atrial fibrillation: insights from the AF-CHF trial (atrial fibrillation and chronic heart failure). | This study sought to assess the prognostic value of physical examination in a modern treated heart failure population.</AbstractText>The physical examination is the cornerstone of the evaluation and monitoring of patients with heart failure. Yet, the prognostic value of congestive signs (i.e., peripheral edema, jugular... |
12,054 | Sarcomere gene mutations are associated with increased cardiovascular events in left ventricular hypertrophy: results from multicenter registration in Japan. | This study investigated the occurrence of cardiovascular events in patients with hypertensive heart disease (HHD) or hypertrophic cardiomyopathy (HCM) with or without sarcomere gene mutations.</AbstractText>Although HHD and HCM are associated with left ventricular hypertrophy (LVH), few data exist regarding the differe... |
12,055 | Clinical features, hemodynamics, and outcomes of pulmonary hypertension due to chronic heart failure with reduced ejection fraction: pulmonary hypertension and heart failure. | The purpose of this study was to assess the clinical, functional, and hemodynamic characteristics of passive and mixed pulmonary hypertension (PH), compare outcomes, and contrast conventional and novel hemodynamic partition values in patients with chronic heart failure of reduced left ventricular ejection fraction (HFR... |
12,056 | Beta-blockers and outcome in heart failure and atrial fibrillation: a meta-analysis. | The purpose of this study was to analyze the effect of beta blockade on outcome in patients with heart failure (HF) and atrial fibrillation (AF).</AbstractText>Beta-blockers are widely used in patients with HF and AF. Recommendation in current HF guidelines, however, is based on populations in which the most patients h... |
12,057 | QT prolongation and T-wave alternans during catheter ablation of atrial fibrillation: a case report. | We report a case of a 63-year-old woman who developed profound QT prolongation, T-wave alternans, and spontaneous ventricular fibrillation during catheter ablation of atrial fibrillation. A thorough search into the possible mechanisms identified the use of sevoflurane, an inhalational gas anesthetic as the culprit. The... |
12,058 | Actual treatments for out-of-hospital ventricular fibrillation at critical care medical centers in Osaka: a pilot descriptive study. | Although advanced treatments are provided to improve outcomes after out-of-hospital ventricular fibrillation, including shock-resistant ventricular fibrillation, the actual treatments in clinical settings have been insufficiently investigated. The aim of the current study is to describe the actual treatments carried ou... |
12,059 | Can the T-peak to T-end interval be a predictor of mortality in patients with ST-elevation myocardial infarction? | The interval between the peak and the end of the T wave (Tp-e interval) on 12-lead ECG is a measure of transmural dispersion of repolarization and may be related to malignant ventricular arrhythmias. The objective of this study was to investigate whether the Tp-e interval predicts in-hospital and long-term mortality in... |
12,060 | Serotonin syndrome after therapeutic hypothermia for cardiac arrest: a case series. | To describe causes, manifestations, and diagnosis of serotonin syndrome following therapeutic hypothermia (TH) after cardiac arrest.</AbstractText>Retrospective case series from a tertiary academic medical center.</AbstractText>Three male patients suffered witnessed out-of-hospital cardiac arrests and were treated with... |
12,061 | Cardiac sympathetic denervation to prevent life-threatening arrhythmias. | Experimental and clinical evidence indicating an antiarrhythmic effect of cardiac sympathetic denervation has been available for 100 years. Experimental data show that left cardiac sympathetic denervation (LCSD), in particular, is not only antiarrhythmic, but also antifibrillatory-an effect exquisitely important for an... |
12,062 | A case of commotio cordis treated with therapeutic hypothermia. | Therapeutic hypothermia is used as a neuroprotective strategy for patients who have persistent neurologic compromise after return of spontaneous circulation from cardiac arrest. The 2010 American Heart Association Guidelines recommend the use of therapeutic hypothermia in adult cardiac arrest patients when the initial ... |
12,063 | Assessment of atrial electromechanical delay in patients with polycystic ovary syndrome in both lean and obese subjects. | Even though polycystic ovary syndrome (PCOS) is characterized by increased inflammatory activity and insulin resistance, there is no clinical data about whether risk of atrial fibrillation are increased in these patients. We aimed to evaluate atrial conduction parameters predicting atrial involvement in this patient gr... |
12,064 | The relationship between chest compression fraction and outcome from ventricular fibrillation arrests in prolonged resuscitations. | Guidelines direct rescuers to minimize CPR interruptions during resuscitation. There is little evidence that evaluates the relationship of increasing CPR fraction among patients with relatively high fractions or prolonged resuscitation.</AbstractText>We conducted an observational study of persons who suffered out-of-ho... |
12,065 | Short-coupled variant of torsade de pointes - an important cause of syncope and sudden death. | We describe 5 cases of a rare and often lethal arrhythmia: short-coupled variant of torsade de pointes. In the light of quitecharacteristic electrocardiograms and clinical picture of this arrhythmia, we consider the name 'short-coupled variant torsade de pointes' as more appropriate than, the more commonly applied term... |
12,066 | Symetis Acurate Transapical Aortic Valve: the initial experience with a second generation of transcatheter aortic valve replacement device. | Transcatheter aortic valve replacement (TAVR) has proven to be a valuable alternative to conventional surgical aortic valve replacement in high risk and surgically in operable patients who suffer from severe symptomatic aortic stenosis. However, a significant number of complications, associated with both the learning c... |
12,067 | Identifying patients at low risk for activity-related events: the RARE Score. | To prospectively assess whether the Risk of Activity Related Events (RARE) Score accurately identifies patients who are at low risk of experiencing an adverse event while exercise training at cardiac rehabilitation.</AbstractText>Individuals screened for entry into cardiac rehabilitation were classified as high-risk (R... |
12,068 | Complexity of atrial fibrillation patients and management in Chinese ethnicity in routine daily practice: insights from the RealiseAF Taiwanese cohort. | Most atrial fibrillation (AF) epidemiology described Western populations; there is a paucity of data from Chinese ethnicity. This study presented differences in patient characteristics and management strategies, and assessed the quality of life (QoL) and AF control in Taiwanese patients from RealiseAF.</AbstractText>Re... |
12,069 | Heart rate variability findings as a predictor of atrial fibrillation in middle-aged population. | Autonomic nervous system modifies atrial electrophysiologic properties and arrhythmia vulnerability.</AbstractText>Heart rate (HR) variability, an indicator of cardiac autonomic regulation, was measured in 784 subjects (mean age 51 ± 6 years; 54% males) from a standardized 45-minute period in a study population (n... |
12,070 | Dabigatran anticoagulation and Stanford type A aortic dissection: lethal coincidence: Case report with literature review. | Novel oral anticoagulants are now encountered in patients needing emergency surgery. Knowledge and treatment options are limited.</AbstractText>We present the case of a 76-year-old patient who suffered from an acute Stanford type A aortic dissection, needing emergency surgical aortic repair. He was anticoagulated with ... |
12,071 | Acute coronary ischemia identified by EMS providers in a standing middle-aged male with atypical symptoms. | Acute coronary syndrome and myocardial infarction have been described to present with atypical symptoms in certain subsets of patients. However, these subsets commonly do not include middle-aged males with a paucity of underlying medical conditions. We present a very unique case of acute coronary syndrome in a 53-year-... |
12,072 | Myocardial infarction due to lightning strike. | Cardiac events due to lightning strike and their severity vary according to the strength of the electric current and the duration of exposure. The electrophysiological effects of lightning on the heart can result in ventricular fibrillation, asystole, QT prolongation, supraventricular tachycardia, and non-specific ST-T... |
12,073 | [Anesthetic management of a hemodialysis patient presenting with apparent LV diastolic dysfunction after undergoing extensive pericardiectomy for constrictive pericarditis]. | We present a case of anesthetic management in a hemodialysis patient suffering from constrictive pericarditis who underwent pericardiectomy. The patient was a 54-year-old male, complicated with hypertension, diabetes and coronary artery disease, with congestive heart disease of NYHA III. After anesthetic induction with... |
12,074 | "Through the looking glass: 10-year-single centre experience in cardiac electrophysiology and radiofrequency ablation". | Radiofrequency catheter ablation is an emerging curative modality of treatment for several types of cardiac arrhythmias. The aim of our study was to evaluate our experience of electrophysiology procedures over a 10-year-period and compare it with the published literature.</AbstractText>All patients undergoing cardiac e... |
12,075 | What is the optimal left ventricular ejection fraction cut-off for risk stratification for primary prevention of sudden cardiac death early after myocardial infarction? | The optimal left ventricular ejection fraction (LVEF) to select patients early post myocardial infarction (MI) for risk stratification for prevention of sudden cardiac death (SCD) in the era of primary percutaneous coronary intervention (PPCI) is unknown.</AbstractText>Consecutive patients (n = 1722) treated with PPCI ... |
12,076 | Predictive value of the heart rate reserve in patients with permanent atrial fibrillation treated according to a strict rate-control strategy. | Atrial fibrillation (AF) patients treated according to a rate-control strategy seem to have excellent outcomes as long as their ventricular response is kept low. However, the stringency of the rate control to adopt with pharmacologic agents is not clearly defined. In particular, the clinical importance of preserving a ... |
12,077 | Maze surgery normalizes left ventricular function in patients with persistent lone atrial fibrillation. | The aim of this study is to evaluate the mid-term clinical and functional outcomes of maze surgery in symptomatic refractory lone atrial fibrillation (AF) patients.</AbstractText>Between March 2008 and January 2013, 39 highly symptomatic patients [mean age 51 ± 10 (mean ± standard deviation); 95% CI, European... |
12,078 | Disease and region-related cardiac fibroblast potassium current variations and potential functional significance. | Fibroblasts, which play an important role in cardiac function/dysfunction, including arrhythmogenesis, have voltage-dependent (Kv) currents of unknown importance. Here, we assessed the differential expression of Kv currents between atrial and ventricular fibroblasts from control dogs and dogs with an atrial arrhythmoge... |
12,079 | Pregnancy in women with an implantable cardioverter-defibrillator: is it safe? | To describe obstetric/neonatal and cardiac outcomes for a cohort of women carrying implantable cardioverter-defibrillators (ICDs) during pregnancy.</AbstractText>All women in routine follow-up at our institution for ICD implantation who became pregnant between 2006 and 2013 were included in this study. All ICDs were pr... |
12,080 | Comprehensive geriatric assessment and 2-year mortality in elderly patients hospitalized for heart failure. | In older adults hospitalized for heart failure, a poor score on a comprehensive geriatric assessment (CGA) is associated with worse prognosis during hospitalization and at 1 month after discharge. However, the association between the CGA score and long-term mortality is uncertain.</AbstractText>This is a prospective st... |
12,081 | Post-resuscitation intestinal microcirculation: its relationship with sublingual microcirculation and the severity of post-resuscitation syndrome. | Post-resuscitation syndrome has been recognized as one of the major causes of the poor outcomes of cardiopulmonary resuscitation. The aims of this study were to investigate the intestinal microcirculatory changes following cardiopulmonary resuscitation and relate those changes to sublingual microcirculation and the sev... |
12,082 | Clinical characteristics and outcomes in super-elderly patients (>85 years) with heart failure: single center observational study in Japan. | The number of elderly patients with heart failure is increasing in Japan owing to the increase in the aging population. In the field of emergency medicine, the treatment and management of elderly patients with heart failure are key issues. We aimed to clarify the clinical characteristics and outcomes of these patients.... |
12,083 | Ivabradine protects against ventricular arrhythmias in acute myocardial infarction in the rat. | Ventricular arrhythmias are an important cause of mortality in the acute myocardial infarction (MI). To elucidate effect of ivabradine, pure heart rate (HR) reducing drug, on ventricular arrhythmias within 24 h after non-reperfused MI in the rat. ECG was recorded for 24 h after MI in untreated and ivabrad... |
12,084 | PQ segment depression in patients with short QT syndrome: a novel marker for diagnosing short QT syndrome? | Patients with short QT syndrome (SQTS) have an increased risk for atrial tachyarrhythmias, ventricular tachyarrhythmias, and/or sudden cardiac death. PQ segment depression (PQD) is related to atrial fibrillation and carries a poor prognosis in the setting of acute inferior myocardial infarction and is a well-defined el... |
12,085 | Mitral valve repair versus replacement in the elderly: short-term and long-term outcomes. | To compare the short-term and long-term outcomes of mitral valve repair (MVP) versus mitral valve replacement (MVR) in elderly patients.</AbstractText>All patients, age 70 years or greater, with mitral regurgitation who underwent MVP or MVR with or without coronary artery bypass graft (CABG), tricuspid valve surgery, o... |
12,086 | Timing of valve repair for severe degenerative mitral regurgitation and long-term left ventricular function. | Current guidelines recommended surgery for patients with severe degenerative mitral regurgitation (MR) when specific left ventricular (LV) dimensions or ejection fraction (EF) are reached, based on previous postoperative survival studies. The aim of this study was to evaluate the incidence and predictors of long-term p... |
12,087 | Risk of cardiovascular, cardiac and arrhythmic complications in patients with non-alcoholic fatty liver disease. | Non-alcoholic fatty liver disease (NAFLD) has emerged as a public health problem of epidemic proportions worldwide. Accumulating clinical and epidemiological evidence indicates that NAFLD is not only associated with liver-related morbidity and mortality but also with an increased risk of coronary heart disease (CHD), a... |
12,088 | Differential effects of furnidipines' metabolites on reperfusion-induced arrhythmias in rats in vivo. | We previously established that furnidipine (FUR) and oxy dihydropyridines prevent rats mortality by strong reduction of the lethal arrhythmias in reperfusion. Therefore we decided to study the influence of three main metabolites (M-2, M-3, M-8) of FUR on ischemia-and reperfusion- induced arrhythmias and hemodynamic par... |
12,089 | The importance of Purkinje activation in long duration ventricular fibrillation. | The mechanisms that maintain long duration ventricular fibrillation (LDVF) are unclear. The difference in distribution of the Purkinje system in dogs and pigs was explored to determine if Purkinje activation propagates to stimulate working myocardium (WM) during LDVF and WM pacing.</AbstractText>In-vivo extracellular r... |
12,090 | Routine angiography in survivors of out of hospital cardiac arrest with return of spontaneous circulation: a single site registry. | Coronary revascularization in resuscitated out of hospital cardiac arrest (OOHCA) patients has been associated with improved survival.</AbstractText>This was a retrospective review of patients with OOHCA between 01/07/2007 and 31/03/2009 surviving to hospital admission. Cardiac risk factors, demographics, treatment tim... |
12,091 | Adrenaline increases blood-brain-barrier permeability after haemorrhagic cardiac arrest in immature pigs. | Adrenaline (ADR) and vasopressin (VAS) are used as vasopressors during cardiopulmonary resuscitation. Data regarding their effects on blood-brain barrier (BBB) integrity and neuronal damage are lacking. We hypothesised that VAS given during cardiopulmonary resuscitation (CPR) after haemorrhagic circulatory arrest will ... |
12,092 | Vasovagal syncope initiating ventricular fibrillation in a healthy subject. | A 62-year-old man with cured lymphoma as only significant medical history experienced a first reflex syncope after prolonged orthostatic posture, with cardiac arrest. Prolonged asystole was followed by ventricular fibrillation needing external defibrillation. The defibrillator provided complete recordings. Thorough inv... |
12,093 | ECG Changes Due to Hypothermia Developed After Drowning: Case Report. | Drowning is one of the fatal accidents frequently encountered during the summer and is the most common cause of accidental death in the world. Anoxia, hypothermia, and metabolic acidosis are mainly responsible for morbidty. Cardiovascular effects may occur secondary to hypoxia and hypothermia. Atrial fibrillation, sinu... |
12,094 | The Role of Cardiac Imaging in Stroke Prevention. | This article reviews the role of cardiac imaging in stroke prevention, defining how imaging tools can be useful in this field. Cardioembolic sources during atrial fibrillation are discussed. New closure devices can be implanted in the left atrial appendage and routinely monitored with imaging modalities. Acute and chro... |
12,095 | Heart rate variability and alternans formation in the heart: The role of feedback in cardiac dynamics. | A beat-to-beat alternation in the action potential duration (APD) of myocytes, i.e. alternans, is believed to be a direct precursor of ventricular fibrillation in the whole heart. A common approach for the prediction of alternans is to construct the restitution curve, which is the nonlinear functional relationship betw... |
12,096 | [Analysis of P wave duration and dispersion in paroxysmal atrial fibrillation]. | Some findings in standard electrocardiogram (ECG) may be associated with paroxysmal atrial fibrillation (AF). The aim of the study was to evaluate P wave duration and P wave dispersion (Pdysp) derived from 12-lead standard surface ECG in sinus rhythm in patients with history of AF in comparison to control subjects with... |
12,097 | Acute Atrial Fibrillation as an Unusual Form of Cardiotoxicity in Chronic Lithium Overdose. | Lithium overdose primarily results in neurologic toxicity; however a number of important cardiac side effects have previously been reported, including nonspecific T-wave changes, ST-segment changes, QTc prolongation, sinus node dysfunction, atrioventricular blocks and ventricular dysrhythmias. Atrial fibrillation due t... |
12,098 | The Effects of Ranolazine on Paroxysmal Atrial Fibrillation in Patients with Coronary Artery Disease: A Preliminary Observational Study. | The impact of ranolazine, an anti-ishemic agent with antiarrhythmic properties, on paroxysmal atrial fibrillation (PAF) in patients with coronary artery disease (CAD) remains unclear. Pacing devices can be useful tools for disclosing even asymptomatic PAF. Purpose of this study is to assess the effect of ranolazine on ... |
12,099 | Two-Year Follow-up in Atrial Fibrillation Patients Referred for Catheter Ablation of the Atrioventricular Node. | At the present time there is still concern regarding the long-term deleterious effects of right ventricular apical pacing in patients referred for auriculoventricular node ablation (AVNA). Furthermore, scarce information is available regarding differences in the follow up according to the baseline cardiopathy and predi... |
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