View clinical trials related to Atrial Fibrillation.
Filter by:This study is a prospective, multicenter, randomized (2:1) controlled study to evaluate the safety and effectiveness of the LARIAT System to percutaneously isolate and ligate the Left Atrial Appendage from the left atrium as an adjunct to planned pulmonary vein isolation (PVI) catheter ablation in the treatment of subjects with symptomatic persistent or longstanding persistent atrial fibrillation. This study will be conducted in two stages: - Limited Early Stage (Stage 1): up to 250 subjects at up to 65 sites. (COMPLETED, transitioned to Stage 2) - Pivotal Stage/ Phase III (Stage 2): up to 600 subjects at up to 65 sites. (COMPLETED) All subjects from both stages will be included in the primary analysis.
The purpose of the PaTH Network AF Clinician-Patient Partnership Cohort is to use clinical data from electronic health records (EHR) and patient reported outcomes (PRO) to answer questions of clinical importance to patients, providers, and other stakeholders.
The purpose of this study is to compare the efficacy and safety of PV isolation with continued antiarrhythmic drug treatment (PVI+ADT) to PV isolation without continued ADT (PVI-ADT) in patients undergoing treatment for symptomatic recurrent AF.
Recent advancements with implantable cardiac device technology include extensive diagnostic and therapeutic algorithms for prevention as well as termination of atrial tachyarrhythmias (ATA). Preventive atrial pacing (PAP) and a novel atrial antitachycardia pacing algorithm (Reactive ATP™) in conjunction with managed ventricular pacing (MVP) recently has been shown to reduce progression to permanent atrial fibrillation (AF) in pacemaker patients with intact atriovenous (AV) conduction and a history of ATA. Whether the use of Reactive ATP™ for reducing AF burden extends to patients with an implantable cardioverter defibrillator (ICD), who typically have structural heart disease and heart hailure (HF), is unknown.
The objective of this study is to establish the safety and effectiveness of a dual epicardial and endocardial ablation procedure for patients presenting with Persistent Atrial Fibrillation or Longstanding Persistent Atrial Fibrillation
There is few information about the association between supraventricular arrhythmia different from atrial fibrillation (AF) or atrial Flutter and the risk of stroke. In this study the investigators hypothesized that the presence of atrial tachycardia would lead to atrial fibrillation and recurrent stroke in patients hospitalized for cryptogenic stroke. The investigators study the association of atrial tachycardia (AT), defined as four or more consecutive premature atrial beats, and AF, recurrent stroke and cardiovascular mortality in 192 consecutive patients hospitalized because of cryptogenic stroke. The follow-up was 12 months for all population
Anticoagulants are generally recognized as a necessary therapy to prevent the recurrence of ischemic stroke in patients with non-valvular atrial fibrillation (NVAF), but in some patients they also cause bleedings, particularly intracranial hemorrhage. One of the independent predictors of intracerebral hemorrhage is the presence of cerebral microbleeds (CMBs); a high incidence of intracerebral hemorrhage is reported in patients with multiple CMBs. Recent study suggested that patients who had CMBs at baseline developed more new CMBs after 2 years (26%), compared with patients (12%) who did not have CMBs at baseline. However, there has been no study on the progression of CMBs in patients receiving so-called novel oral anticoagulants (NOACs). This study tests the hypothesis that the incidence of hemorrhagic stroke is lower in patients receiving NOACs (dabigatran, rivaroxaban, apixaban, and edoxaban) than in those receiving warfarin, and this difference reflects the difference in the effects of warfarin and NOACs on the progression of CMBs. Towards this goal, we enroll 200 patients with at least one CMB detected by 1.5 T MRI (T2*WI) at baseline, who treated with NOACs or warfarin for 12 months. Primary endpoint is the proportion of subjects with an increased number of CMBs at Month 12 of treatment with NOACs or warfarin. If the results of this study support the efficacy of NOACs in preventing increase of CMBs, this would be of great interest to domestic and overseas clinicians, in view of the potential therapeutic impact, including that for primary prevention of ischemic stroke.
The objective is to compare the efficacy of 2 treatment strategies, catheter ablation of atrial fibrillation versus optimized pharmacological therapy, in patients with symptomatic atrial fibrillation. It is a randomized, prospective, controlled, open-label multicentre, parallel-group study including 116 patients. Inclusion criteria are patients aged 30-70 years with symptoms related to atrial fibrillation and who have failed or been intolerant to at least one anti-arrhythmic drug, with at least one atrial fibrillation episode documented on ECG during the previous 12 months and at least one symptomatic episode during the previous 2 months or at least 2 symptomatic episodes of persistent AF in the previous 12 months. Main exclusion criteria are patients who have tested 2 or more anti-arrhythmic drugs for rhythm control, uncontrolled hypertension, valvular disease requiring anticoagulation, planned valve surgery within 2 years, contraindication to treatment with anticoagulants, heart failure, left atrial diameter > 60 mm, unstable angina or acute myocardial infarction within the last 3 months, cardiac revascularization procedure within the last 6 months, prior cardiac surgery or planned cardiac corrective surgery within 1 year, prior AF ablation procedure. The primary endpoint is general health-related quality of life at 12 months follow-up. The main secondary endpoints are morbidity and mortality as composite outcome, cardiovascular hospitalization, symptoms, heart failure, left atrial and ventricular function and diameters, exercise capacity, health care economics, rhythm, atrial fibrillation burden, successful versus failed treatment, safety and "cross-overs" over time. Patients will receive a cardiac monitor, implanted subcutaneously, which will monitor the heart rhythm during a two month "Run-in" period, for the definition of the basic atrial fibrillation burden. Patients will be randomly assigned to an antiarrhythmic drug (for rhythm or rate control) or to left atrial catheter ablation. Evaluation of outcome is at 12, 24, 36 and 48 months of follow-up, while health economy will be evaluated at 24 and 48 months of follow-up.. In case of documented disease progression or unacceptable toxicity, subjects will be switched to the alternative regimen. The main statistical analysis of the primary endpoint will be based on the intention-to-treat population. The trial duration is 48 months.
The Cardiovascular disease research using Linked Bespoke studies and Electronic Records (CALIBER) e-health database was the data resource for this study. CALIBER links patient records from four different data sources: Clinical Practice Research Database (CPRD), MINAP (Myocardial Ischaemia National Audit Project registry) Hospital Episodes Statistics (HES), the Office for National Statistics (ONS).
The purpose of this study is to evaluate the effect of a cognitive behavior therapy distress management program targeting wellbeing in patients with atrial fibrillation and their relatives.