Active clinical trials for "Atrial Fibrillation"

A multicenter, prospective, randomized study in a 1:1 ratio, single-blind with double-blind evaluation to evaluate the superiority of physiological ventricular pacing (proposed modality) vs. managed ventricular pacing (control) for prevention of persistent AF (PeAF) occurrence in patients with prolonged atrioventricular interval (PR≥180 ms) and indication for pacing: sinus node disease and/or paroxysmal type 1 or 2-second degree AV block.

This study is to look at the success of Intracardiac Echocardiography (ICE) in the Watchman procedure. Currently the process is to use a Transesophageal Echocardiography (TEE) to place the Watchman in patients. This study is aiming to show how the ICE is just as effective in placing the device correctly and effectively.

Statins have rapid and significant actions that have potentially important (but not yet proven) implications for postoperative atrial fibrillation and cardiac protection in patients undergoing cardiac surgery. The focus of this study is, therefore, on patients having surgical aortic valve replacement (with aortotomy) and the development of postoperative atrial fibrillation (POAF). Our aims are: to examine the ability of a clinically durable Atorvastatin prophylactic regime to prevent the development of POAF and other postoperative complications in these patients. Patients will be randomized to Atorvastatin 80mg or placebo 7 to 14 days preoperative until 30 days postoperative - a total of 37 to 44 days of treatment. The medication will be double blinded. The randomized studie will address the following hypotheses in patients undergoing open heart operation with solitary aortic valve replacement with a bioprosthetic valve that 1) 7 to 14 days preoperative and until 30 days postoperative treatment with Atorvastatin 80 mg daily reduces the incidence of POAF in statin-naïve patients.

The goal of this interventional clinical trial is compare between two different dose regimens of bisoprolol (beta-blocker) in CABG patients in terms of efficacy and safety.

This study aims to analyze the safety and effectiveness of the discontinuation/resumption protocol of factor Xa inhibitors before and after invasive procedures/surgeries in non-valvular atrial fibrillation patients who are at risk of minor bleeding in actual clinical settings

The aim of this study is to investigate the occurrence of new-onset postoperative atrial fibrillation after totally endoscopic cardiac surgery.

Atrial fibrillation (AF) has been the most frequently occurring, sustained arrhythmia, which causes significant morbidity and mortality. AF may not always be a totally random process. It can be maintained by stable and rapid reentrant circuits resulting in fibrillary conduction throughout the atria. During mapping of AF, difficulty is frequently encountered during the identification of culprit sites and an analysis of the wave propagation particularly when the electrogram signals demonstrate wide temporal and spatial disparities. Catheter ablation targeting regions with fractionated potentials or high frequencies during AF, has been previously proposed as a treatment strategy. However, the benefit of adjunctive CFAE (complex fractionated atrial electrogram) ablation or linear ablation after successful PVI (pulmonary vein isolation) was controversial based on the recent data from the Substrate and Trigger Ablation for Reduction of Atrial Fibrillation Trial Part II (STAR AF II) trial. Therefore, the optimal ablation strategy for persistent AF remains undetermined and an alternative approach has to be explored.

The purpose of this pragmatic study is to evaluate the safety, performance and effectiveness of the VARIPULSE catheter technology used in combination with the TRUPULSE™ Generator, and the compatible EAM system (Carto 3D) to treat patients with atrial fibrillation and related arrhythmias during clinically-indicated ablation procedures.

Atrial fibrillation (AF) is a growing clinical problem.1 AF is a highly dynamic condition involving episodes of sinus rhythm interspersed with periods of arrhythmia, becoming more difficult to terminate over time. AF carries a substantial cost, morbidity and mortality burden. There are two important approaches to the management of AF: 1). Controlling ventricular response rate without attempting to terminate or prevent AF (rate control), and 2). Attempting to control and maintain sinus rhythm (rhythm control).2 Current rhythm control with antiarrhythmic agents (AAD) is only moderately beneficial in restoration and maintenance of sinus rhythm but produce serious adverse events. AAD selection is limited based on the potential for pro-arrhythmia, patient's age, presence of structural heart disease, and renal or hepatic dysfunction. All AF anti-arrhythmic agents are associated with harm (number needed to harm 17-119).3 There remains an important need for development of an efficacious safe AAD for the control of AF. Recent published translational studies suggest that that neuronal-type Na+ channel blockade (nNav) with riluzole, a nNav inhibitor used to manage amyotrophic lateral sclerosis (ALS), can effectively suppress triggered atrial arrhythmias.4 In two independent retrospective cohorts, riluzole-treated ALS patients significantly lowered the incidence of new-onset AF. Riluzole is well-tolerated without evidence of pro-arrhythmia.5 Therefore, to assess riluzole's effects on the reduction of paroxysmal episodes of AF, we will conduct a prospective, randomized, placebo-controlled human study using holter monitors that offer continuous electrocardiographic monitoring pre- (1 month) and with exposure to riluzole or placebo (1 month) to determine statistically superior reductions in episodes of AF.

This is a prospective, multicenter, randomized, double-blinded clinical trial exploring the efficacy and safety of rivaroxaban as compared to standard of care in reducing stroke, transient ischemic attack (TIA) and neurocognitive decline, in subjects with non-valvular AF and with low risk of stroke.