View clinical trials related to Atrial Fibrillation.
Filter by:This study will use an automated blood pressure monitor (Microlife WatchBP03) with an inbuilt algorithm to detect atrial fibrillation (an irregular heart rhythm) in patients with an implanted pacemaker who have previously documented paroxysmal (intermittent) atrial fibrillation. This study will compare the Microlife device detected atrial fibrillation episodes to the pacemaker detected atrial fibrillation episodes.
Atrial fibrillation (AF) is the most common cardiac arrhythmia with a lifetime risk of developing AF of 1 in 4 people aged over 40. Besides hemodynamic compromises stroke remains the most feared complication of AF with an increase in risk by 5-fold. Catheter ablation has evolved as a standardized treatment option in paroxysmal AF. Due to the advanced electrical and structural remodeling the single procedural results of catheter ablation for persistent and longstanding persistent AF are rather disappointing without a proven superiority of any applied strategy compared to others. However, repeated catheter ablation can achieve better results. The surgical (epicardial) approach seems to be more effective, though still a significant amount of failures exist. Checking the epicardial ablation lines and if necessary making additional endocardial lines (which is a hybrid ablation) is expected to be most efficacious in avoiding lesion gaps and providing the most complete lesion set. The study objective of this pilot trial is to compare the safety and efficacy of catheter ablation within 6 months versus a hybrid ablation consisting of endoscopic epicardial surgery combined with endocardial catheter ablation (performed one-stage) in preventing the recurrence of atrial fibrillation (AF) in symptomatic, drug refractory patients with persistent or longstanding persistent atrial fibrillation.
The purpose of this study is to compare single groin puncture and bilateral groin puncture during AF ablation procedure. The investigators will compare 1) the degree of patients' discomfort during hemostasis by questionaire, 2) procedure time, 3) complication rates, and 4) 1-year clinical recurrence rate of AF.
This quality improvement intervention seeks to implement two Best Practice Alerts (BPAs) for use in cardiology clinics while simultaneously evaluating the impact of each BPA- one for patients with uncontrolled blood pressure and one for patients with atrial fibrillation not on anticoagulation.
Prospective, multi-center, single-arm, non-interventional and open-label registry. The purpose of the registry is to document use of Phased Radio Frequency Ablation (RFA) (hereafter "Phased RFA") System in a real world patient population with atrial fibrillation (AF) and evaluate its performance. Gold AF will enroll a minimum of 1,000 patients who undergo Phased RFA in approximately 38 sites in Western, Central Europe, Israel and South Korea.
The key focus of this survey will be to collect data on physicians awareness of the content of the Pradaxa® Prescriber Guide and the extent to which risk awareness is communicated to patients. The data collected with atrial fibrillation patients will show if and how well this information is received and understood.
The purpose of this study is to compare which strategy is superior in patients with persistent/permanent atrial fibrillation (AF) undergoing ablation, direct current cardioversion (DCC) prior to empirical pulmonary vein isolation (PVI) ; or pulmonary vein isolation (PVI)ablation in atrial fibrillation then Direct current cardioversion (DCC) if the patient remains in atrial fibrillation.
The overall aim of this trial is to determine the most cost effective approach to diagnose paroxysmal atrial fibrillation (PAF) following transient ischemic attack (TIA) and stroke. A summary of the rationale for this study is as follows: 1. Recently completed randomized trials of cardiac monitoring following stroke have established that PAF is more common than previously recognized in cryptogenic stroke. 2. The majority of TIA/stroke patients will have at least one potential stroke mechanism identified by the time etiologic investigations completed. 3. Detecting PAF in patients with strokes with known causes (eg. lacunar and large vessel atherosclerosis) is clinically important since appropriate anticoagulation for AF reduces stroke recurrence in all patients with prior TIA/stroke not just cryptogenic strokes. 4. There are competing technologies for evaluating cardiac rhythm and diagnosing AF but no cost effectiveness data 5. The rates of PAF in strokes with known causes (SKC) have not been well characterized. PER-DIEM is a pilot study to compare two different cardiac monitoring technologies as first-line investigations to detect PAF in patients with recent stroke and TIA. The study will also assess whether a pivotal trial is feasible and warranted. The principal research questions to be addressed in this study will be: 1. Whether implantable loop recorder (ILR) plus remote monitoring will diagnose more paroxysmal AF / atrial flutter and provide a better assessment of the total burden of AF resulting in a greater proportion of patients started on an OAC versus the external loop recorder (ELR) strategy. 2. What is the relative cost-effectiveness as a first-line investigation of long-term implantable ECG (ILR) coupled with remote monitoring for 12 months compared to external event-triggered ECG loop recorder (ELR) for 30 days in the diagnosis clinically actionable AF in following TIA/stroke. 2) What is the feasibility, patient compliance, diagnostic accuracy and rates of AF detection (>30 seconds) of ILR compared to the ELR strategies.
Atrial fibrillation (AF) is the most common cardiac arrhythmia with a prevalence of 1-2%. Without antithrombotic treatment, the annual risk of a cardioembolic event is 5-6%. The source of a cardioembolic event is a thrombus, which usually forms in the left atrial appendage (LAA). The prevention of cardioembolic events involves treatment with anticoagulant drugs, which were limited to, until recently, vitamin K antagonists (e.g. warfarin). Anticoagulant treatment with warfarin can lead to adverse bleeding events, some of which can be life threatening. Recently, two new options for thrombus prevention have been developed. The first is the novel anticoagulants (NOAC), which were associated with slightly better safety profiles due to a lower frequency of intracranial bleeding in large randomized trials . The second option involves interventional occlusion of the LAA. The aim of this project is to compare the LAA occlusion intervention to NOAC pharmacological treatment in a randomized multicenter study of AF patients at high risk of a cardioembolic event.
This study is multicentric, single-blind, and interventional with a randomization into two parallel arm, between a standard of care information and an additional information of the patient, with a 12 month follow up. The aim of this study is to evaluate the effectiveness of a personalized information program versus information provided from standard of care in patients taking Xarelto for Stroke Prevention in Atrial Fibrillation.