Active clinical trials for "Atrial Fibrillation"

Vine™ is a permanent carotid filter designed to provide protection against embolic stroke in people with atrial fibrillation. It is implanted bilaterally in the common carotid arteries from a thin needle under ultrasound guidance. The procedure is performed without general anesthesia and takes minutes. The safety, feasibility and tolerability of Vine™ will be evaluated. Patients who are eligible will receive Vine™ and will be followed-up for a year after device implantation.

After a myocardial infarction (MI), patients discharged home in sinus rhythm may develop AF that is asymptomatic, undetected, and undertreated. Previous studies (CARISMA and ARREST) have demonstrate high rates of new-onset AF recorded on implantable loop recorder (ILR), although the routine implantation of ILRs post-MI remains costly and invasive. The external loop recorder may effectively identify patients with new-onset AF through a validated diagnostic algorithm and targeted monitoring during a high-risk period (immediately after hospital discharge). We will prospectively randomize patients to receive an external loop recorder or standard care, evaluating rates of new-onset AF developing within 30 days after MI.

The study plans to learn if sending different text messages, serving as reminders or encouragement, may help patients take their medication more often if they have had trouble keeping up with their medicines.

This study is a prospective cohort study aimed at investigating the efficacy and safety of left atrial appendage closure in combination with catheter ablation in patients with atrial fibrillation.

This is a sub-study of the ARTESiA study registered as NCT01938248. This study is designed to validate biomarkers in subclinical atrial fibrillation and to determine if the prospective biomarker will be informative of the potential efficacy of treatment.

The aim of the present prospective study is to further develop and validate a composite risk score predicting both ischemic and bleeding risk, based on epidemiologic, clinical, biological, and/or morphologic complementary data. First, the investigators will assess the predictive performance of current clinical risk scores. Second, the investigators will assess the potential predictive value of additional markers. Third, the investigators will aim to develop a new risk score.

The study aims at comparing, in a large cohort of consecutive clinically indicated left atrial appendage closure, clinical and imaging outcomes between different subpopulations.

Despite progress made in treating atrial fibrillation with catheter ablation, outcomes remain suboptimal with pulmonary vein isolation alone. Ablation of ganglionated plexi (GP) has been shown to be beneficial in patients with atrial fibrillation although optimal strategies of localization of these regions have yet to be determined. The investigators aim to develop a novel strategy of CT guided GP localization to guide ablation in patients with atrial fibrillation. The investigators also aim to clarify the network of innervation between GP to clarify the optimal ablation strategy. This is an observational, single-center study evaluating feasibility and efficacy of CT and high frequency stimulation (HFS) guided GP mapping and ablation in patients with AF undergoing catheter ablation with pulmonary vein isolation. Patients will undergo HFS and CT guided mapping of GPs followed by allocation into one of 8 different GP ablation approaches in a non-randomized fashion.

Paroxysmal atrial fibrillation (AF) induce, in the affected patient, a prominent negative effect on health-related quality of life (HR-QoL) and physical fitness. The health care utilisation is high and the patient does never know when the next attack of atrial fibrillation occurs. Therefore, is physical exertion often avoided due to fear of new attacks. Further, are shortness of breath and fatigue often present despite of prescribed modern drugs. Paroxysmal AF per se enhance markedly the risk to develop stroke and heart failure, which both are syndromes that cause further negative effect on the patient´s HR-QoL and physical fitness. Altogether, cause the symptoms in paroxysmal AF a vicious spiral where both VO2max and muscle function deteriorate. The problems with shortness of breath might be due to dysfunction in respiratory muscles. Physiotherapy led exercise within cardiac rehabilitation (PT-X) in combination with inspiratory muscle training (IMT) has shown positive effects in patients with permanent atrial fibrillation. However, to our knowledge, not yet investigated in patients with paroxysmal AF. Aim: Primary to investigate, in a multicentre randomised controlled trial, if PT-X in combination with IMT can impact HR-QoL in patients with paroxysmal AF. Secondary to investigate the effect of PT-X in combination with IMT regarding symptoms, physical fitness, physical activity and the number of atrial fibrillation attacks and health care costs compared to the control group, asked to live their usual life, during the study period. Expected outcome: PTX in combination with IMT can improve HR-QoL, respiratory muscle function, level of symptoms, physical fitness and physical activity in patients with paroxysmal AF. In addition, a reduced number of atrial fibrillation attacks could decrease the direct cost of health care.

The STOP Persistent AF Post Approval Study (PAS) is a prospective, global, multicenter, observational trial.