Active clinical trials for "Atrial Fibrillation"

The goal of this observational cohort study is to investigate the potential of fitness trackers in combination with machine learning algorithms to identify cardiovascular disease specific patterns. Two hundred participants will be enrolled: 50 with heart failure 50 with atrial fibrillation 100 (healthy) individuals without the former two conditions All participants are given a Fitbit device and monitored for three months. Researchers will compare differences in heart rate variability patterns between the groups and devise a machine learning algorithm to detect these patterns automatically.

Atrial The treatment of atrial fibrillation (AF) includes 2 axes: the prevention of the cardio-embolic risk and rhythm control. The possibilities for this control are antiarrhythmic drugs and, above all, catheter ablation, an interventional cardiology technique which consists in treating the areas responsible for the initiation and perpetuation of AF by applying radiofrequency energy or cryotherapy to the myocardial tissue. Limited research has been done on the combination of different parameters to manage AF, especially during the initial stage of the disease. A translational and multimodal approach could make it possible to better characterize this pathology and thus, help to adjust the therapeutic management for the patients. The combined analysis of regional electrophysiological, morphological, and functional parameters of the left atrium could make it possible to better detect early atrial cardiomyopathy and predict recurrences of atrial fibrillation.

Atrial fibrillation is a cardiac arrhythmia most often originating in the left atrium, causing anarchic electrical activity and thus a loss of atrial contraction. This increases the risk of stroke through clot formation in the atrium, but also of heart failure. Atrial fibrillation is a major cause of stroke, accounting for more than 25% of all strokes. In addition, a quarter of ischemic strokes remain without an obvious cause at the end of hospitalization, and it is recommended that atrial fibrillation be detected intensively with long-term heart rhythm recording. Implantable loop recorders can detect 30% of atrial fibrillation cases over the 3-year battery life of these devices, after a stroke of undetermined origin. However, these devices require a small operation to implant them under the skin, and they are expensive. The hypothesis of this study is that MRI imaging of the left atrium would enable better selection of patients to receive an implantable loop recorder. MRI can quantify the proportion of the left atrium with scar tissue, which is likely to favour the onset of atrial fibrillation. If the results confirm this hypothesis, the number of patients requiring an implantable loop recorder could be reduced, and perhaps an anticoagulation strategy based on MRI data could be introduced. In addition to the usual follow-up by cardiologists and neurologists, participation in this study involves a cardiac MRI (with contrast agent) within 3 months of the stroke.

The goal of this clinical trial is to screen all types of electrocardiographic changes and rhythm disorders in adult patients with a hematologic malignancy requiring a treatment by Bruton's tyrosine kinase (BTK) inhibitor (ibrutinib, acalabrutinib, zanubrutinib) using an insertable subcutaneous cardiac monitor (ISCM) and occurring from inclusion and within 12 months. This study consists of the implantation of an ISCM at inclusion and before BTK inhibitor initiation. Then patients will have medical visits every 3 months (+/- 7 days) during 12 months and a continuous cardiac telemonitoring using the ISCM.

Using state of the art cardiac magnetic resonance imaging techniques, characterization of ablation lesions in the early phase after pulmonary vein isolation ablation in atrial fibrillation patients, and relate findings to the ablation scar at 3 months follow up and atrial fibrillation-free survival at 1 year.

The purpose of the study is to compare two types of treatment for atrial fibrillation (AF) that are designed to treat the symptoms of atrial fibrillation. The treatments being compared are: A single catheter ablation procedure with the investigational EAS, a visually-guided, light-energy catheter Standard drug therapy (antiarrhythmic drugs) To learn more about the CardioFocus ENABLE investigational clinical study, please contact the study site closest to you. Eligibility Criteria Persons with paroxysmal atrial fibrillation may be eligible for this study. Other study eligibility criteria include: 18 to 80 years of age Frequent episodes of AF Failed at least 1 drug treatment for AF (beta-blockers or standard AADs) Other criteria

Hemolysis during and after catheter ablation will be compared between catheter ablation performed using radiofrequency and pulsed-field energy. Consecutive patients indicated for catheter ablation for AF will be enrolled, catheter ablation will be done using standard catheters (Qdot, Biosense Webster for RF, and Farapulse, Boston-Scientific for PF). Blood samples will be drawn at the beginning of ablation (T1), at the end of ablation (T2), and one day after the procedure (T3). Hemolysis will be analyzed using flow cytometry, ELISA and standard biochemistry and compared between RF and PF patients, Primary hypothesis is that hemolysis level will be higher after PF ablation compared to RF ablation.

The Affera Global Registry is a prospective, global, multi-center, observational post-market registry (PMR). The purpose of this study is to describe clinical performance and safety data in a broad patient population treated with the Affera Platform.

Atrial fibrillation (AF) is the most common arrhythmia among adults with increasing risk of stroke, heart failure and mortality. The EAST-AFNET 4 trial showed that rhythm control treatment (Antiarrhythmic drugs AAD or catheter ablation) was associated with a lower risk of adverse cardiovascular outcomes than usual care among patients who had recently (within one year) been diagnosed with atrial fibrillation. In phase II/III GLORIA AF registry, Early AF ablation within 3 months from initial diagnosis in a contemporary cohort of patients who were predominantly treated with non-vitamin K antagonist oral anticoagulants was associated with a survival advantage compared to medical therapy alone. Moreover, early AF ablation appeared to provide the greatest benefit compared to other treatments. The ATTEST trial was a multicenter, randomized, prospective study in patients with paroxysmal atrial fibrillation (AF) designed to assess whether radiofrequency (RF) ablation is more effective in delaying the progression to persistent AF than AADs. Patients >_65 years were significantly more likely to progress to persistent AF/AT than patients were <65 years, suggesting that early RF ablation may be an effective treatment strategy for delaying AF progression. So, we hypothesize that early AF ablation within one year after first AF diagnosis may associate with improved procedures outcomes in symptomatic AF patients.

Health-Related Quality of Life (HRQoL) was commonly impaired in atrial fibrillation patients. Depression, anxiety, and illness perception are psychological correlates of HRQoL. Our previous study had shown good effects of CBT on the quality of life in AF patients. This study aimed to establish the long-term efficacy of CBT on both psychological distress and HRQoL. Method: The study was a prospective, open study, pseudo-randomization with a pretest-posttest design and a 6-month follow-up. A total of 102 patients with paroxysmal AF were enrolled, and 90 patients were assigned (1:1) to 10 weeks of CBT focused on anxiety symptoms or to treat as usual in the end. Item Short Form Health Survey (SF-12), GAD-7, PHQ-9, University of Toronto Atrial Fibrillation (AFSS), and Brief Illness Perception Questionnaire (BIPQ) were measured as outcomes.