Active clinical trials for "Atrial Fibrillation"

The purpose of this study is to compare two invasive treatments of symptomatic paroxysmal atrial fibrillation: Percutaneous radiofrequency catheter ablation and mini invasive thoracoscopic radiofrequency ablation in patients referred for a first time invasive treatment for atrial fibrillation. The hypothesis is, that mini invasive thoracoscopic radiofrequency ablation as a first time invasive treatment is more effective compared to a percutaneous catheter based technique in patients with symptomatic paroxysmal atrial fibrillation refractory or intolerant to at least one antiarrhythmic drug.

The investigators hypothesize that ranolazine would decrease the incidence of recurrence of Atrial Fibrillation (AF) after electrical cardioversion of persistent AF. Patients with persistent AF who are candidates for electrical cardioversion will be randomized to either placebo or ranolazine after successful electrical cardioversion.

Examination of CRT efficacy in patients with progressive heart failure and atrial fibrillation at the same time

The Medtronic InSync III Marquis Cardiac Resynchronization Therapy Defibrillator (CRT-D)-System (implantable cardioverter-defibrillator with biventricular stimulation for cardiac resynchronization) is equipped with the "Conducted-Atrial Fibrillation (AF)-Response-Algorithm (CAFR)". This algorithm is designed to maximize biventricular stimulation and thus the amount of cardiac resynchronization when atrial fibrillation occurs. The goal of the study is the evaluation of the effect of the CAFR in CRT-patients suffering from atrial fibrillation by quantification of the increase of biventricular pacing during atrial fibrillation caused by CAFR as well as the influence of the CAFR on the ventricular heart rate.

Primary Objective: To determine whether daily administration of dronedarone started 5-7 days before cardioversion is superior to dronedarone started only after cardioversion with respect to the absence of symptomatic, ECG confirmed, atrial fibrillation (AF) recurrence over 6 months in adult patients with persistent AF, for whom cardioversion is clinically indicated and planned to reduce symptoms and antiarrhythmic treatment is clinically indicated to reduce the risk of cardiovascular hospitalization due to AF. Secondary Objectives: Main Secondary : To assess the number of symptomatic AF recurrences/patient/6 months with and without ECG confirmation; To assess characteristics of symptomatic AF recurrence in the two treatment arms (frequency, duration of episodes, type, number, and severity of AF symptoms per patient); To compare the rates of early recurrences of AF between the two treatment strategies; Other secondary: To assess whether there is a difference in proportion of patients with symptomatic AF recurrences (with and without ECG confirmation) between the two treatment strategies; To assess whether there is a difference in number of electrical cardioversions per patient between the two treatment strategies; To assess the impact of the two strategies on number of shocks, cumulative amount of energy delivered, shock failure, and immediate success of cardioversion; To assess whether there is a difference in rate of cardiovascular (CV) hospitalizations and length of hospital stay between the two treatment strategies; To assess whether there is a difference in quality of life between the two treatment strategies.

To determine whether Biventricular pacing in patients undergoing HIS bundle ablation for atrial fibrilation has beneficial effects on myocardial perfusion and left ventricularr ejection fraction.

To compare the safety and chronic Pulmonary Vein isolation of 2 ablation types. visually guided ablation (VGA) using the EAS-AC and radiofrequency ablation

EffecT is a prospective, randomized multicenter study to assess whether management of atrial fibrillation (AF) as well as the early optimization of cardiac resynchronization therapy (CRT) via Home Monitoring decreases mortality and morbidity compared to conventional treatment in subjects with a standard indication for CRT with Implantable Cardioverter Defibrillator (ICD) backup and AF.

The purpose of the Effect of Posterior Pericardiotomy on the Incidence of Atrial Fibrillation After Cardiac Surgery (PALACS, NCT02875405) trial was to determine if performing posterior left pericardiotomy at the time of cardiac surgery prevents atrial fibrillation after cardiac surgery. The purpose of the Posterior left pericardiotomy for the prevention of AtriaL fibrillation After Cardiac Surgery-Extended Follow-Up (PALACS-EF) study is to evaluate the effect of posterior left pericardiotomy on 5-year clinical outcomes.

The effects of air pollution on the frequency of hospital admissions and mortality due to acute coronary syndromes, atrial fibrillation, and renal disfunction are noted also in areas perceived as pollution-free (due to the lack of large industry). The aim of the project is to assess the impact of air pollution in Eastern Poland on regional public health.