Active clinical trials for "Atrial Fibrillation"

The Swiss-AF-BURDEN study will be embedded in the follow-up visits of the Swiss-AF cohort study. The research question of the current atrial fibrillation burden will be answered by using 7-day Holter-ECG recordings and continuous implanted loop recorder recording, whereas cardiac MRI examination will give results about cardiac dimensions and function. The 7-day Holter ECG will be repeated after one year. The cMRI will be performed separately or directly after the brain MRI to minimize the additional burden for the patients. Only a subsample of 100 patients will additionally receive ILR for 2 years.

Precise identification of the atrial fibrosis is essential for successful catheter ablation of atrial arrhythmias in patients with atrial fibrillation. Voltage mapping of endocardial electrograms is currently used to delineate the anatomical substrate, but this is influenced by the direction of the activation wave front and is limited by the patient-specific thresholds. Mapping of local myocardial electrical impedance may overcome these limitations.

Psychological distress (anxiety and depression) is common in and experienced differently by people living with long-term health conditions (LTCs). Being able to measure whether psychological distress is related to living with a LTC would allow researchers and clinicians to provide interventions specifically tailored to the challenges of living with a LTC and therefore provide the most appropriate support for these patients. Such a measure would also be useful in research to identify the presence of illness-related distress in different patient groups. This project will therefore create a new measure of illness-related distress that has applications for both research and clinical practice. This will involve the psychometric validation of the new illness-related distress measure to test how valid and reliable the measure is. The aim of the project is to provide initial validation of the Illness Related Distress Scale in a community sample, recruited through online platforms. The objective of the study is to gather initial validity and reliability data for the scale.

The Vanderbilt Atrial Fibrillation Ablation registry (VAFAR) is a prospective clinical and genetic biorepository that systematically enrolls patients undergoing atrial fibrillation (AF) ablation. The registry was started in 2011 and has greater than 1000 AF ablation records with stored blood and DNA samples. The goals of VAFAR are to: 1) identify clinical, genetic, and serological predictors of response to AF ablation in order to improve patient selection, and 2) to provide a resource for translational research investigating the electrophysiologic mechanisms of AF pathogenesis.

This trial is comparing medical approaches for stroke prevention in people who have atrial fibrillation (AF) and have undergone a successful procedure called ablation to eliminate or substantially reduce the arrhythmia. AF is normally associated with an increased risk of stroke which in many patients can be prevented with appropriate blood thinner therapy. This trial will compare a strategy of oral anticoagulant therapy after successful ablation to therapy with an aspirin per day.

This is a substudy of "Generation 100". In that study, 4000 healthy persons between 70 and 75 will be randomised to a moderate intensity training group, a high intensity training group or control group, with 3 years of exercise. The investigators will follow these persons and register all who develop atrial fibrillation during these 3 years, and at follow-up after ended intervention to see if there is differences in the number of persons who develop atrial fibrillation in the 3 groups.

The primary objective of this study is to determine if left atrial appendage closure with the WATCHMAN FLX Device is a reasonable alternative to oral anticoagulation following percutaneous catheter ablation for high risk patients with non-valvular atrial fibrillation.

The main hypothesis of this work is that an approach combining clinical parameters and biomarker assays could improve the understanding and prediction of the occurrence of silent atrial fibrillation (AF) in the acute phase after stroke. In this prospective work, the investigators will rely on the Dijon Stroke Registry, which collects extensive clinical data for each patient hospitalized for a stroke. As part of this registry, patients are seen 6 months after stroke to assess their clinical status. This clinical follow-up will allow us to judge the evolution of the AF diagnosed during the acute episode at a distance.

In patients undergoing elective coronary artery bypass grafting (CABG) surgery, coronary artery disease, sleep-disordered breathing (SDB), atrial fibrillation (AF) perioperative atrial fibrillation and complications will be assessed. The primary objective is to determine, whether SDB patients have a higher rate of Major Adverse Cardiac and Cerebrovascular Events (MACCE) within 30 days after surgery compared to those without SDB.

The results of this study could imply that a atrial fibrillation registry, as a tool for structured diagnosis and therapy in patients with atrial fibrillation, may improve patient care for this rapidly growing population.