View clinical trials related to Atrial Fibrillation.
Filter by:Atrial fibrillation is the most common cardiac arrhythmia. In atrial fibrillation, there is a risk that clots can form in the heart, especially in the left atrium. If these clots come loose, there is a risk of stroke. To prevent strokes, patients with atrial fibrillation and status post ICB can be treated with anticoagulants. This medication therapy prevents blood clots from forming in the heart, but can also cause bleeding. Another therapy option is the occlusion of the left atrium. After closure of the left atrium, only a short anticoagulation therapy is necessary until the occluder has healed. The aim of the study is to compare these two treatment approaches. In this study only already approved drugs and occlusion systems will be used.
Circumferential pulmonary vein isolation (PVI) has become a mainstay in the treatment of atrial fibrillation (AF), particularly in symptomatic patients with paroxysmal AF (PAF) intolerant or refractory to medical treatment. The safety and short-term performance of the novel QDOT® catheter (Biosense Webster, Irvine, CA, USA), that allows for a high-power short-duration (HPSD) ablation, has already been evaluated in the QDOT-FAST clinical study, with favorable data on feasibility and safety, and lowered fluoroscopy and procedure times needed to achieve complete PVI. HPSD ablation was based on immediate heat formation during the resistive phase, affecting a small tissue depth at 90 W/4 s (irrigation at 8 ml/min) with a temperature limit of 65ºC. However, up to date there are no randomized studies evaluating the real usefulness of the QDOT® catheter. Longer-term follow-up is still required to verify the long-term effectiveness and correlations between short-term follow-up and arrhythmia recurrence when using this catheter. The impact of this novel catheter, when used in conjunction with a personalized ablation protocol that uses the information of left atrial wall thickness (LAWT) to modulate the AI target at each ablation point, compared with a standard ablation protocol following the published CLOSE study criteria is already unknown.
Post-authorization observational, prospective, follow-up study of a cohort of patients with non-valvular atrial fibrillation who are treated with direct oral anticoagulants (DOACs) to evaluate the clinical course (occurrence of stroke, major bleeding and mortality) and its correlation with clinical, pharmacokinetic (plasma concentrations), pharmacodynamic (haemostatic) and pharmacogenetic factors.
By evaluating routine clinical practice data from the UK primary care database, researchers in this study want to gather information on the kidney function of patients with non-valvular atrial fibrillation (NVAF, irregularly heart beats which is not caused by a heart valve problem) who are treated with Rivaroxaban (non-vitamin K antagonist, brand name Xarelto) or vitamin K antagonists (VKAs). The study planned to enroll about 25,000 male or female patients who were at least 18 years old and were new users of Rivaroxaban or VKAs between 01 January 2014 and 30 September 2019. Researchers are especially interested in whether patients experienced under treatment any worsening in kidney function, the onset of acute kidney diseases or injuries. In addition, risk of worsening in kidney function in patients with or without diabetes or heart failures are of interest to the researchers.
The study aims to identify specific or potential reasons that prolong the length of hospital stay after video-assisted thoracoscopic surgery lobectomy. The hypothesis is that patients who are still in hospital after video-assisted thoracoscopic surgery lobectomy are associated with prolonged air leak, infection, pneumonia, atrial fibrillation or other complications or social factors.
There is still unresolved question weather preprocedural imaging of left atrium and pulmonary veins is needed before the pulmonary vein isolation procedure for the treatment of atrial fibrillation. The investigators are conducting a randomized study to determine if 3D rotational angiography (as a mode of preprocedural imaging) performed before the cryoballoon ablation, facilitates the procedure and has positive impact on procedure characteristics and outcomes.
Prospective, multi-center, non-randomized, open label, double arm study to assess the performance of the KODEX-EPD PV occlusion viewer. This study includes patients with atrial fibrillation who are scheduled to undergo a cryo balloon ablation procedure for their atrial fibrillation.
Aim of this study is to describe clinical and procedural characteristics of real-world population initiated on triple antithrombotic therapy (double antiplatelet therapy+anticoagulant) or double antithrombotic therapy (single antiplatelet therapy+anticoagulant) after percutaneous coronary intervention (PCI). Investigator's driven trial, retrospective (2015-2019), multicenter Italian registry. Baseline clinical characteristics as well as procedural details will be collected retrospectively. Follow-up data (minimum 6 months and maximum 5 years follow-up) will focus on combined rates of stent thrombosis and myocardial infarction (primary endpoint).
The primary objective of this study is to determine the atrial fibrillation burden reduction, or absolute atrial fibrillation burden, associated with improvement in quality of life in patients undergoing ablation of persistent atrial fibrillation.
An increased risk of atrial fibrillation (AF) after patent foramen ovale (PFO) closure was observed in randomized trials but systematic screening of AF was not performed in these studies. Purpose: The objective of this study was to evaluate incidence of AF in patients who underwent percutaneous PFO closure with serial 24-hours ambulatory ECG (AECG) monitoring during 6 months follow-up. Primary endpoint was incidence of AF on ECG monitoring. Secondary endpoints were clinical outcomes (symptoms, hospitalization from cardiovascular causes, ischemic stroke, or bleeding) up to 6 month follow-up.