1,721,289 research outputs found
Durable effects of chronic vagus nerve stimulation for treatment of chronic heart failure: Extended follow-up of the CardioFit Multicenter Pilot Study
No full textDurable effects of chronic vagus nerve stimulation for treatment of chronic heart failure: Extended follow-up of the CardioFit Multicenter Pilot Study
No full textDynamic risk assessment to improve quality of care in patients with atrial fibrillation: the 7th AFNET/EHRA Consensus Conference
No full textAims The risk of developing atrial fibrillation (AF) and its complications continues to increase, despite good progress in preventing AF-related strokes. Methods and results This article summarizes the outcomes of the 7th Consensus Conference of the Atrial Fibrillation NETwork (AFNET) and the European Heart Rhythm Association (EHRA) held in Lisbon in March 2019. Sixty-five international AF specialists met to present new data and find consensus on pressing issues in AF prevention, management and future research to improve care for patients with AF and prevent AF-related complications. This article is the main outcome of an interactive, iterative discussion between breakout specialist groups and the meeting plenary. AF patients have dynamic risk profiles requiring repeated assessment and risk-based therapy stratification to optimize quality of care. Interrogation of deeply phenotyped datasets with outcomes will lead to a better understanding of the cardiac and systemic effects of AF, interacting with comorbidities and predisposing factors, enabling stratified therapy. New proposals include an algorithm for the acute management of patients with AF and heart failure, a call for a refined, data-driven assessment of stroke risk, suggestions for anticoagulation use in special populations, and a call for rhythm control therapy selection based on risk of AF recurrence. Conclusion The remaining morbidity and mortality in patients with AF needs better characterization. Likely drivers of the remaining AF-related problems are AF burden, potentially treatable by rhythm control therapy, and concomitant conditions, potentially treatable by treating these conditions. Identifying the drivers of AF-related complications holds promise for stratified therapy
Efficacy and Safety of Celivarone, With Amiodarone as Calibrator, in Patients With an Implantable Cardioverter-Defibrillator for Prevention of Implantable Cardioverter-Defibrillator Interventions or Death The ALPHEE Study
Full text linkCelivarone is a new antiarrhythmic agent developed for the treatment of ventricular arrhythmias. This study investigated the efficacy and safety of celivarone in preventing implantable cardioverter-defibrillator (ICD) interventions or death.Celivarone (50, 100, or 300 mg/d) was assessed compared with placebo in this randomized, double-blind, placebo-controlled, parallel-group study. Amiodarone (200 mg/d after loading dose of 600 mg/d for 10 days) was used as a calibrator. A total of 486 patients with a left ventricular ejection fraction ?40% and at least 1 ICD intervention for ventricular tachycardia or ventricular fibrillation in the previous month or ICD implantation in the previous month for documented ventricular tachycardia/ventricular fibrillation were randomized. Median treatment duration was 9 months. The primary efficacy end point was occurrence of ventricular tachycardia/ventricular fibrillation-triggered ICD interventions (shocks or antitachycardia pacing) or sudden death. The proportion of patients experiencing an appropriate ICD intervention or sudden death was 61.5% in the placebo group; 67.0%, 58.8%, and 54.9% in the celivarone 50-, 100-, and 300-mg groups, respectively; and 45.3% in the amiodarone group. Hazard ratios versus placebo for the primary end point ranged from 0.860 for celivarone 300 mg to 1.199 for celivarone 50 mg. None of the comparisons versus placebo were statistically significant. Celivarone had an acceptable safety profile.Celivarone was not effective for the prevention of ICD interventions or sudden death.http://www.clinicaltrials.gov. Unique identifier: NCT00993382
Radiofrequency catheter ablation of idiopathic ventricular tachycardia originating in the main stem of the pulmonary artery.
No full textWe report the case of a patient in whom successful radiofrequency catheter ablation of an idiopathic ventricular tachycardia (VT) originating in the main stem of the pulmonary artery was performed. After successful ablation of the index arrhythmia, which was an idiopathic right ventricular outflow tract VT, a second VT with a different QRS morphology was reproducibly induced. Mapping of the second VT revealed the presence of myocardium approximately 2 cm above the pulmonary valve. Application of radiofrequency energy at this site resulted in termination and noninducibility of this VT. After 6-month follow-up, the patient remained free from VT recurrences
Age-related differences in presentation, treatment, and outcome of patients with atrial fibrillation in Europe:The EORP-AF general pilot registry (EURObservational Research Programme-Atrial Fibrillation)
Full text linkObjectives This study sought to compare age-related differences in presentation, treatment, and outcome of atrial fibrillation (AF) in a wide cohort of European subjects. Background AF is the most common sustained arrhythmia in the elderly. Methods We evaluated all patients enrolled in the EORP-AF (EURObservational Research Programme-Atrial Fibrillation) General Pilot Registry in 70 centers of 9 European countries. Results Among 3,119 subjects, 1,051 (33.7%) were age ≥75 years. Permanent AF was significantly more common in the elderly, who had a higher prevalence of hypertension, valvular diseases, chronic heart failure, coronary artery disease, renal failure, chronic obstructive pulmonary disease, and prior hemorrhagic event or a transient ischemic attack. Common diagnostic tests were underused in older subjects. Despite their higher stroke risk, the use of oral anticoagulants was significantly lower in the elderly (76.7% vs. 82.8%; p = 0.0012), whereas aspirin and clopidogrel alone or in combination were more often prescribed. Rate control was the management of choice in the older group, with electrical cardioversion and catheter ablation performed less frequently than in the younger age group. Antiarrhythmic drugs were significantly less prescribed in the elderly (29.8% vs. 41.7%; p <0.0001). At the 1-year follow-up, mortality (11.5% vs. 3.7%; p <0.0001) and the composite of stroke/transient ischemic attack, systemic thromboembolism, and/or death (13.6% vs. 4.9%; p <0.0001) were significantly higher in the ≥75 years of age cohort. Conclusions In older patients, AF is more often associated with comorbidities. Rate control is the preferred therapeutic approach. Despite a higher CHA2DS2-VASc score, the use of oral anticoagulation is suboptimal. In elderly subjects, the rate of adverse events is higher at follow-up.</p
Corrigendum: Glomerular filtration rate in patients with atrial fibrillation and 1-year outcomes (Scientific Reports (2016) 6 (30271) DOI: 10.1038/srep30271)
No full textThis Article contains errors in the Acknowledgements section: "Abbott Vascular Int. (2011-2014), Amgen (2012-2018), AstraZeneca (2014-2017), Bayer (2013-2018), Boehringer Ingelheim (2013-2016), Boston Scientific (2010-2012), The Bristol Myers Squibb and Pfizer Alliance (2014-2016), The Alliance Daiichi Sankyo Europe GmbH and Eli Lilly and Company (2014-2017), Gedeon Richter Plc. (2014-2017), Menarini Int. Op. (2010-2012), MSD-Merck & Co. (2011-2014), Novartis Pharma AG (2014-2017), ResMed (2014-2016), Sanofi (2010-2011), SERVIER (2012-2018)". should read: "Abbott Vascular Int. (2011-2014), Amgen (2009-2018), AstraZeneca (2014-2017), Bayer (2009-2018), Boehringer Ingelheim (2009-2016), Boston Scientific (2009-2012), The Bristol Myers Squibb and Pfizer Alliance (2011-2016), The Alliance Daiichi Sankyo Europe GmbH and Eli Lilly and Company (2011-2017), Gedeon Richter Plc. (2014-2017), Menarini Int. Op. (2009-2012), MSD-Merck & Co. (2011-2014), Novartis Pharma AG (2014-2017), ResMed (2014-2016), Sanofi (2009-2011), SERVIER (2009-2018)"
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Chronic Vagus Nerve Stimulation in Patients With Heart Failure: Potential Predictors of Success
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