View clinical trials related to Atrial Fibrillation.
Filter by:- Long-term aspirin (ASA) is the standard recommended antithrombotic therapy in patients with stable coronary artery disease (CAD), especially following stenting (Class I, Level A). - Long-term oral anticoagulation (OAC) is the standard antithrombotic therapy in patients with atrial fibrillation (AF) associated with one or more risk factor for stroke (Class I, Level A). - During the first year following acute coronary syndrome (ACS) and/or percutaneous coronary intervention (PCI), several studies evaluating the combination of OAC treatment and antiplatelet therapy are either already published or ongoing. - At distance of the index ACS and/or PCI, patients with stable CAD and concomitant AF remain at particular high-risk of ischemic (3 to 4 times higher as compared to patients with stable CAD without AF) and bleeding events. Antithrombotic management of these patients is subsequently highly challenging in clinical practice. The European task force suggests that the use of a full-dose anticoagulant monotherapy without any antiplatelet therapy should be the default strategy in such patients with both, AF and stable CAD. - However, evidences are sparse and weak to support such a strategy (only observational studies with many biases) and no randomized trial has assessed this question. These patients, especially those at high-risk of recurrent ischemic events (post- ACS, diabetes, multivessel CAD…) may benefit from the combination of OAC and aspirin at long-term. Indeed the crude event rate of ischemic events is much higher than the crude event rate of bleeding in this specific population. Ischemic events are 2 to 3 times more frequent than bleeding in daily practice. - The benefit/risk ratio of these two different strategies (ASA in combination with OAC vs. OAC alone) in patients at high-risk of recurrent coronary and vascular events remains unknown. Dual therapy with full-dose anticoagulation and ASA may lead to higher risk of major bleeding, while stopping ASA in stabilized high-risk patients after PCI may lead to poorer outcome regarding ischemic events. - The coordinating investigators therefore designed a double blind placebo controlled trial in order to assess the optimal antithrombotic regimen that should be pursued long-life in this subset of patients.
The purpose of this study is to evaluate the safety and effectiveness of empirical posterior wall isolation (PWI), left atrial appendage electrical isolation (LAAEI) and coronary sinus isolation (CSI) when compared to pulmonary vein isolation (PVI) alone: - PVI alone, - PVI + PWI, - PVI + PWI + LAAEI, - PVI + PWI + LAAEI + CSI.
Prevalence of primary aldosteronism (PA) in resistant hypertension is not clear. In addition, emerging evidence supports the role of elevated serum aldosterone in promoting cardiovascular disease, independently from high blood pressure (BP) levels, but current data on this issue are heterogeneous.
This study is a multicenter, randomized, subject and Investigator-blinded, placebo-controlled, parallel-group, multiple ascending dose-ranging study to evaluate the safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) effects of MAA868 in patients with atrial fibrillation (AF) or flutter at low risk of thromboembolic stroke or peripheral embolism.
Atrial fibrillation (AF) is one of the most common tachyarrhythmias with substantial morbidity, disability and mortality. It is estimated that the number of patients with AF is expected to reach 7 million by 2050. Radiofrequency catheter ablation (RFCA) are the effective treatment for patients with drug-refractory symptomatic paroxysmal or persistent AF. However, the successful rate of RFCA for persistent AF during the first procedure still relatively low, the investigators also need pharmacological cardioversion or external electrical conversion. Several studies showed intravenous nifekalant injection after RFCA provided relative high rate of sinus conversion during catheter ablation in paroxysmal or persistent AF. Nevertheless, there is still no acceptable universal opinion on which dosage of nifekalant is preferable for converting AF during the operation. In order to address this issue, the investigators initiated the study to evaluate the efficacy and safety of different doses of intravenous nifekalant injection in the rapid cardioversion of persistent AF during radiofrequency catheter ablation.
This is a prospective study to test a novel artificial intelligence (AI)-enabled electrocardiogram (ECG)-based screening tool for improving the diagnosis of unrecognized atrial fibrillation (AF) and stroke prevention.
In ablation strategy for persistent Atrial Fibrillation (PsAF), ablation limited to Pulmonary Vein (PV) isolation is the most straightforward approach but the result give only 50% of arrhythmia free follow-up. Substrate modification strategies have failed to demonstrate their superiority with variable reported success rate. The Marshall network is a highly arrhythmogenic structure that has not been incorporated in current ablation strategies. The investigators sought to investigate a new ablation strategy that target systematically the vein of Marshall by ethanol infusion. This step is integrated in a new ablation strategy consisting in a global anatomical substrate based ablation including PV isolation and left atrial linear ablation (Marshall-Plan). The main objective of this study is to compare the 12 month freedom from any arrhythmia (Atrial Fibrillation (AF)/Atrial Tachycardia (AT)) between the Marshall-Plan approach and the PV isolation approach.
Assess the clinical safety and feasibility of MultiPulse Therapy (MPT) electrical stimulation waveform sequence in terminating paroxysmal and persistent atrial fibrillation.
This interventional prospective multicenter nonrandomized clinical and epidemiological study is the first Russian study aimed at evaluating the effectiveness of a single-lead electrocardiography device (CardioQVARK) in screening for atrial fibrillation in primary health care.
Catheter ablation with pulmonary vein (PV) isolation is a commonly performed strategy employed for the treatment of atrial fibrillation. The conventional approach for post-procedure care has been for the patient to stay overnight and be discharged the next day. However, the overall incidence of procedure related complications of catheter ablation for atrial fibrillation in high volume centers is low. New technologies have been introduced and improve the safety of the ablation procedure. Discharging patients the same day after ablation is a practice that's currently followed by many centers in the United States and abroad. The investigators' hypothesis is that the currently available advanced technologies allow for the same-day safe discharge of patients after catheter ablation. The investigators propose a prospective single-arm study to evaluate the feasibility and safety of the same-day discharge after AF ablation at MGH. The protocol of same-day discharge will include the use of a commercially available venous closure device, early ambulation, bed-side echocardiogram, and follow-up phone calls at day 1 and 3 post-procedure.