View clinical trials related to Atrial Fibrillation.
Filter by:RABLAP-AF will compare pulmonary vein isolation (PVI) in combination with posterior wall isolation (PWI) for patients with persistent atrial fibrillation (AF).
This is a prospective, case-control study that seeks to learn about the role of genetics in early onset atrial fibrillation (AF) and if genetic testing can be used to improve how the investigators treat atrial fibrillation. The study will enroll 225 participants. Eligible participants will have undergone sequencing for arrhythmia and cardiomyopathy (CM) genes. Based on those results, participants will be recruited for an outpatient research visit with testing that includes cardiac MRI, rest/stress/signal-averaged ECGs, and cardiac monitoring. If an inherited arrhythmia/CM syndrome is diagnosed, guideline-directed changes to medical care will be recommended.
This research will be carried out to determine the effect of walking exercises performed using a behavioral change model on symptom severity and quality of life in patients with Atrial Fibrillation.
The aim of the proposed research project is to compare the efficacy of three different ablation strategies in patients with atrial fibrillation (AF) who are undergoing their first repeat catheter ablation for recurrent AF.
Thrombus shedding in patients with atrial fibrillation (AF) can lead to cerebral artery embolism. Stroke caused by AF is very dangerous, which not only threatens the life of patients, but also seriously affects the quality of life. This study aims to explore the biomarkers of stroke in patients with AF by integrating proteomics and metabolomics data, and establish the network relationship of stroke in patients with AF, so as to reveal the molecular mechanism of stroke in patients with AF.
Objectives: Atrial fibrillation (AF) is the most common arrhythmia. Anticoagulation with warfarin or new oral anticoagulants in patients with AF can significantly reduce thromboembolic events. However, due to the lack of bleeding risk predictors of oral anticoagulants, the bleeding risk of patients with AF cannot be accurately evaluated. The purpose of this study is to screen biomarkers that can predict bleeding in patients with AF through proteomics and metabolomics, and construct the protein metabolic network pathway of anticoagulant bleeding in patients with AF. Design: AF patients treated with oral anticoagulants were enrolled in this study. Blood samples were centrifuged and the supernatant was stored in the refrigerator at - 80 ℃. All patients were followed up for one year to determine whether bleeding occurred after oral anticoagulants. Proteomic data were obtained by LC-MS/MS Analysis-DIA platform. Metabolomic data were obtained by UPLC-QTOF/MS platform. All of the omics data were used to compare proteins/enzymes with metabolic pathways. Quantitative changes of individual metabolites and proteins were calculated and graphed using the KEGG mapping tools.
Atrial fibrillation (AF) is the most common cardiac arrhythmia. As an independent predictor of cardiovascular mortality, particularly for stroke, its management is a real public health issue. AF is associated with diabetes, obesity, hypertension, heart failure and, occasionally, hyperthyroidism. Atrial fibrosis is one of the major players in the genesis and maintenance of AF. It has a strong impact on rhythmic prognosis and treatment success. Currently the AF ablation is the treatment recommended by the European Society of Cardiology (ESC) and by the American Society of Cardiology. The rate of AF recurrence is variable according to the patient characteristics and remains unfortunately today difficult to predict. Abnormal concentrations of circulating biomarkers reflecting the underlying pathophysiologic mechanisms of myocardial fibrosis could help to identify patients at higher risk of developing AF and/or AF recurrence after ablation. Thus, the development of simple, reliable and valid biological tests of atrial fibrosis would allow the clinicians i) to estimate the potential success of AF ablation; ii) to predict AF recurrence; iv) and to propose a AF personalized therapeutic approach. The main objective of PROFIB-AF study is to identify, among biological markers (ICTP, PICP, PIIINP, sRAGE, AGE, Galectin 3, sSt2, microRNAs) of myocardial fibrosis, those which can predict the recurrence risk after AF ablation.
Cardiac thromboembolism attributed to atrial fibrillation (AF) constitutes at least one-third of ischemic strokes. Indeed, stroke may be the first manifestation of previously undetected AF. The prevalence is projected to increase 20% the coming decades, especially in age group 65 years and above of age. To add to incidence, the diabetic population have an increased risk yet not properly investigated. In patients with confirmed AF, assessment using the CHA2DS2-VASc score (congestive heart failure, hypertension, age 65 years and above, diabetes mellitus, stroke, vascular disease, age 75 years and above, sexual category), is applied for risk stratification. If the CHA2DS2-VASc score is at least 1, or definitely 2 points typically a non-vitamin K antagonist oral anticoagulant (NOAC) should be prescribed. The chest- and thumb-electrocardiogram (ECG) system Coala Heart Monitor has proven efficacious in detecting AF following recent cryptogenic stroke. This system also showed to be feasible from a patient perspective. Thus, in patients aged 65 years and above with diabetes mellitus at least 2 points are reached. Therefore, patient with these risk factors should be considered for further evaluation for NOAC to prevent stroke, which provides the rational for this study.
The study will investigate the effect of Dapagliflozin on atrial fibrillation (AF) burden. AF burden will be defined as the percent of time spent in AF over a 2-week period, assessed by noninvasive continuous heart rhythm monitoring at baseline and at 3 months, quality of life (QOL) and validated echocardiographic indices of atrial myopathy. This knowledge will enable us to study the therapeutic potential of SGLT2i as a novel adjunct treatment for patients with DM and AF. Patients with paroxysmal AF (AF that terminates spontaneously or with intervention within seven days of onset) and DM and randomize them to Dapagliflozin or placebo. Continuous heart rhythm monitoring patch for AF burden will be used, measure of QOL with the help of AF Effect on Quality-of-life survey and perform an echocardiogram with measurement of left atrial volume index, left atrial strain and atrial tissue dopplers. All measurements will be performed at baseline and at study completion. The central hypothesis is that SGLT2i will lead to reduced AF burden that will translate into improvement in QOL, and the underlying mechanism is improvement in atrial myopathy.
This is a single-arm clinical trial evaluating the efficacy and safety of left atrial isolation achieved by catheter ablation in patients with persistent atrial fibrillation with severe atrial fibrosis.