View clinical trials related to Atrial Fibrillation.
Filter by:The purpose of this study to investigate the effects of colchicine on atrial fibrillation recurrence and vascular and cardiac function in patients with atrial fibrillation.
Cardioversion from atrial fibrillation (AF) to sinus rhythm (SR) is performed primarily to improve patient symptoms. However, due to the intermittent nature of AF, patients may have converted to SR prior to elective cardioversion and the recurrence rate of AF after cardioversion can be high. The aims of this study are to assess the rate of spontaneously conversion to SR in patients with AF scheduled for elective cardioversion, as well as the rate of early recurrence of AF after elective cardioversion.
This study aims to compare a semi-automatic 3D echocardiography-based left atrial appendix occlusion procedure planning with FEops, with other imaging modalities for evaluating the left atrial appendage dimensions and device prediction (sizing, deformation) pre-left atrial appendix occlusion , including the current "gold standard", CT- based FEops HEARTguideTM left atrial appendix occlusion procedure planning. A number of pre-specified endpoints are defined for analyzing this new approach.
A prospective, observational cohort study designed to identify clinical phenotypes and evaluate predictors & outcomes of functional mitral and tricuspid valve regurgitation in patients with atrial fibrillation. Participant will under go: - Baseline echocardiography - Cpex Echocardiography - Blood test: BNP - 1 year follow up Echocardiography Participants will be stratified into three subgroups: - Atrial Functional MR - Atrial Functional TR - Mixed MR & TR
Atrial fibrillation (AF) is common, increases the risk of mortality, stroke and heart failure, and portending significant burden to patients, societal health and health economy. One of three AF cases are undiagnosed. Several methods for detection of AF exist, but most of them have major limitations and are associated with resource-demanding diagnostic workup in the speciality health care services. This randomized clinical trial will evaluate whether self-screening for AF with the ECG247 patch monitor will reduce AF-related morbidity.
Pulmonary vein isolation (PVI) for paroxysmal atrial fibrillation (PAF) has limited success. The superior vena cava (SVC) has been identified as one of the most common non-pulmonary vein triggers for PAF. It is estimated that SVC isolation (SVCI) could improve the clinical results for patients with PAF. However, results from previous studies about SVCI remain controversial. It is possible that safety concerns for SVCI outweigh its benefits and lead to inadequate ablation. To address this issue, the introduction of a quantitative ablation index (AI) for SVCI may provide a solution. The goal of this prospective, randomized controlled trial is to test the efficacy and safety of quantitative SVCI in addition to PVI in PAF. Participants with PAF will be randomly assigned to either PVI group or PVI+ quantitative SVCI group in a 1:1 ratio and will be followed up for 12 months. The main questions it aims to answer are: 1. Evaluate the efficacy of PVI+SVCI guided by quantitative AI. 2. Assess the safety of PVI+SVCI guided by quantitative AI. The primary end point is treatment success at 3 months after the index ablation. The secondary end points include treatment success at 12 months, and safety outcomes.
Enrolled subjects will be treated with the Synaptic Cryoablation System. Treatment will include cryoablation of the pulmonary veins to achieve PVI. All subjects will be followed for twelve (12) months after completion of the index ablation procedure.
The goal of this clinical trial is to compare the efficacy of a maximum output shock for cardioverting atrial fibrillation between two commonly used defibrillators in New Zealand . These machines have different maximum energy outputs, and to date no head-to-head comparison cardioverting atrial fibrillation between the two has been undertaken. The main question it aims to answer is whether either device is more likely to cardiovert patients referred for atrial fibrillation. Participants will be randomized to undergo cardioversion with one of two defibrillators at either 200J or 360J. Participants in each arm will undergo up to three shocks at the energy-level to which they have been randomized, using a standardized procedure. For participants randomized to the lower energy level who fail to return to normal rhythm after three shocks, they will be given a fourth shock at the higher energy level. All participants will then be asked to undertake a blood test the day following the cardioversion, and receive a follow up phone call. These are to ensure there is no difference in the safety of the procedure between the two energy levels. It is worth noting that these two components of the study (the blood test and phone call) are the only additional time commitment that is expected to be involved if you choose to participate in the study.
In this study, a wristband that monitors hearth rhythm and blood pressure is assessed in free living conditions. Two groups of patients are being recruited: patients receiving an EKG holter and patients receiving an automatic blood pressure monitor. Patients wear the wristband for 28 days. During this time, the number of atrial fibrillation episodes detected by the wristband is being counted, which is to be compared with the number of episodes detected by the holter. Also, blood pressure is measured continuously, which is to be compared with daily blood pressure measurements using a conventional blood pressure cuff.
Atrial fibrillation (AF) is the most common cardiac severe arrhythmia globally and is associated with an increased risk of mortality and morbidity, with a loss of 6.0 million disability-adjusted life-years worldwide in 2017, conferring 0.24% of total disability-adjusted life-years globally. Due to the absence of knowledge of AF pathogenesis, currently, available therapies do not prevent AF onset or progression in 85% of patients. Despite the identification of novel druggable targets that are involved in the pathogenesis of AF, the translation of these findings to clinical drug studies is limited. Postoperative atrial fibrillation (POAF) is the most common type of secondary AF. The incidence of POAF after coronary artery bypass grafting (CABG) is approximately 30%. About 16% of patients developed POAF in cardiac surgery even with the international guideline recommended perioperative beta-blocker intervention. Remimazolam is a newly approved benzodiazepine sedative indicated for the induction and maintenance of procedural sedation in adults, with significantly reduced sedation and recovery time. It was also found to be with an anti-inflammatory effect and therefore might have an impact on POAF since AF is closely related to the inflammatory response of myocardial tissue and inflammatory factors such as TNF-α. So, the RePAF trial intends to explore whether remimazolam application in induction and maintenance for general anesthesia during cardiac surgery can reduce the incidence of POAF in patients with CABG, and the effect on the postoperative plasma levels of inflammatory factors and stress factors.