View clinical trials related to Atrial Fibrillation.
Filter by:Atrial fibrillation (AF) is one of the most common cause of preventable ischemic stroke and associated with increased cardiovascular morbidity and mortality. Our previous AFTER study demonstrated the general epidemiological data about the patients with valvular and nonvalvular AF in Turkey. However, data is lacking about the use of new oral anticoagulants (NOACs), time in therapeutic INR range (TTR) in vitamin K antagonist users and AF management modality in our country. In this multicenter trial the investigators aimed to analyze, follow and evaluate the epidemiological data in non-valvular AF patients.
In this pilot and feasibility study, the investigators will enroll patients with frequent symptomatic episodes of atrial fibrillation (AF) in a cross-over study testing two different classes of anti arrhythmic drugs (AADs). This pilot and feasibility study will provide preliminary data for a larger study in which the investigators will test the hypothesis that a common AF genetic risk allele modulates response to different AADs.
To evaluate the safety for the combination of Rivaroxaban and Ticagrel versus triple antithrombotic regimen (Vitamin K Antagonist (VKA), Clopigogrel and Aspirin) in patients with atrial fibrillation and coronary artery disease undergoing percutaneous coronary intervention (PCI).
The purpose of this study is to evaluate the antiinflammatory effects of rivaroxaban compared with dabigatran in patients with atrial fibrillation.
Prospective randomized (rhythm control or rate control in heart failure patients with new onset atrial fibrillation) Objective of study 1. To analyze long term outcome of patients with heart failure with new onset atrial fibrillation according to the rhythm control 2. To analyze remodeling of atrium and ventricle by the new onset AF in heart failure patients 3. To analyze the change of LV function and functional capacity according to the rhythm in patients with HF and new onset AF
Atrial Fibrillation (AF) is a common arrhythmia with a prevalence of 1.5-2%. This prevalence increases significantly after 80 years of age. After the appearance of first episode(s) some of the patients will present frequent arrhythmia recurrences moving from the paroxysmal status to the persistent and the permanent status of the continuous spectrum of the natural time course of AF. In contrast some other will not present further relapses. To study and predict the dynamic evolution of AF is clinically important, furthermore, the detection of different sub populations risk for AF relapses will determine and different therapeutic approaches.
Prospective and explorative clinical study. The objective is to assess the clinical efficacy of pulmonary vein isolation using the Arctic Front Advance cryoballoon in patients with longstanding persistent atrial fibrillation (AF) at one year follow up. 44 subjects will be enrolled. Patients with longstanding persistent AF, with continuous AF duration longer than one year, who have not previously undergone an AF ablation procedure, and have symptoms related to AF corresponding to at least European Heart Rhythm Association (EHRA) score 2, will be studied. Patients should have failed at least one betablocker or class I or III antiarrhythmic drug. Excluded are those with congestive heart failure with New York Heart Association (NYHA) class 3 or more, left ventricular ejection fraction < 40%, left atrial diameter ≥ 60 mm, significant valvular disease or planned cardiac intervention within next 12 months, and conventional contraindications for AF ablation procedures. Patients will be screened with echocardiography and response to electrical cardioversion. Following conversion to sinus rhythm, amiodarone will be initiated to maintain sinus rhythm. Pulmonary vein isolation will be performed using the Arctic Front Advance cryoballoon ablation catheter. Pulmonary vein conduction block will be assessed by a circular mapping catheter. All patients will be subject to electroanatomical voltage mapping during sinus rhythm for demonstration of extent of atrial myocardial lesions after ablation. Patients will be followed every third month up to one year after the ablation procedure. Arrhythmia monitoring during follow up will be performed by 7 day Holter monitoring at 6, 9 and 12 months follow up, including a 12 lead ECG. 12 months follow up for symptoms, EHRA score, and quality of life. Patients with symptomatic recurrence requiring a redo ablation procedure will be re-studied after 8-12 months while asymptomatic patients will be studied at 12 months follow up. Primary end-Point is Clinical success based on symptoms and presence of AF. Secondary end-Points include freedom from AF without antiarrhythmic drugs at 6 and 12 months according to 7 day Holter and ECG, Rhythm, AF burden, AF profile, Quality of Life, Symptoms, Adverse Events, atrial size and function, Biomarkers, extent of scar tissue, predictive factors of freedom from AF, complications, hospitalization and Health economics.
The purpose of this study is to explore the efficacy of low energy cardioversion on atrial fibrillation accompanied with chronic heart failure treated with HTEA or usual medicine.
Prospective randomized (rhythm control or rate control) Objective of study 1. To analyze long term outcome of patients with acute stroke with atrial fibrillation according to the rhythm control 2. To analyze recurrence rate of atrial fibrillation or recurrence stroke in patients with acute stroke according to the rhythm control (by antiarrhythmic drug, cardioversion, catheter ablation)
The aim of this study is a comparative evaluation of progression of paroxysmal atrial fibrillation in patients with coronary artery disease after isolated CABG and CABG combined with pulmonary vein isolation. Hypothesis of the study - patients with paroxysmal atrial fibrillation and coronary artery disease after CABG in combination with isolation of the pulmonary veins have a better outcomes for the progression of AF compared with patients undergoing isolated CABG.