Active clinical trials for "Atrial Fibrillation"

CARTO represent a new way of 3D electroanaromic mapping for AF which has improved safety and success rate of AF ablation compared with other conventional methods of AF ablation as it provide accurate visualization of atrial anatomy and identification of atrial substrate properties for catheter ablation of atrial arrythmias which ensure good ablation with decreased incidence of recurrence of AF.

study to evaluate the performance of the CardiacSense1's embedded PPG under different environmental and physical conditions

This is an open label, multi-center, randomized parallel control clinical trial, to examining thethe clinical outcomes of AF ablation on HFrEF patients with persistent atrial fibrillation.

This study aimed to investigate safety and efficacy of intracardiac echocardiography (ICE)-guided zero-fluoroscopic cryoballoon ablation (CBA) in patients with paroxysmal atrial fibrillation.

PeQasus is a worldwide, retrospective, multicenter analysis focusing on QDOT based PVI. Data of at least 300 patients with QDOT based PVI will be collected. All data will be evaluated after anonymization. Primary endoints are efficacy and safety.

Atrial fibrillation (AF) is an abnormal heart rhythm which originates from the top two chambers (atria) of the heart. It can cause significant symptoms and have severe consequences such as stroke. Catheter ablation is a treatment for AF. It is minimally invasive, involving thin tubes known as catheters, being inserted through a blood vessel in the groin and passed to the heart under X-ray guidance. Once in the heart, regions of tissue believed responsible for the abnormal heart rhythm can be identified, and hot or cold energy used to create scar at these areas, preventing the abnormal rhythm. Identifying these regions is a key challenge in making the treatment as effective as possible. The investigators believe that there may be a change in the shape of a participant's atria in these regions and as such identifying and treating areas of abnormal shape may be beneficial. To investigate this, the study team propose three phases. The first, uses previously collected data to make a model of what is average atrial geometry in AF. Investigators will then compare individual participants' atrial geometries to this average shape to identify areas of geometric abnormality and see how these correspond to areas of abnormal electrical activity. In the second phase, investigators will collect new data on how much atrial geometry changes during catheter ablation procedures. Finally, in the third phase, investigators will investigate whether including geometric assessment in the catheter ablation procedure is feasible from a work flow perspective.

The goal of this Observational Prospective Multi-center Study is to observe the acute and long-term safety and performance outcomes after spatiotemporal dispersion-based AF/AT ablation utilizing the Volta Medical AI software in "real-life" clinical practice, without any imposed clinical workflow. Moreover, this study will allow to collect medico-economic data related to the tailored ablation strategy guided by the Volta Medical AI software. All patients enrolled are treated for their atrial fibrillation/tachycardia via a catheter ablation procedure using Volta Medical AI software during the mapping phase to identify areas of interest specific to the patient. The ablation approach is free and chosen by the operator according to his standard practice. Intraoperative and postoperative follow-up will be performed as in routine clinical practice during AF ablation procedures: hospitalization for ablation procedure and standard postoperative quarterly visits (at 3 months, at 6 months and/or 9 months as per study investigator's Standard Of Care) then annual visits up to 24 months post-ablation. Adverse Events, recurrences of atrial arrhythmia and AF related symptoms (EHRA score) are collected from the patient's enrollment until the patient's study termination. A quality-of-life questionnaire related to general health (EQ-5D-3L) is collected during the preoperative visit and at least during annual follow-up visits. The patient's study-termination corresponds to his last annual visit at 24 months post-ablation index.

There are insufficient data on the safety and efficacy of edoxaban plus antiplatelet therapy in subjects with atrial fibrillation (AF) following percutaneous intervention (PCI) with stenting. This study is designed to evaluate the safety and to explore the efficacy of an edoxaban-based antithrombotic regimen versus a vitamin K antagonist (VKA)-based antithrombotic regimen in subjects with AF following PCI with stent placement. Bleeding is a central safety outcome in cardiovascular clinical trials, especially for antithrombotic strategies and invasive procedures.

Atrial fibrillation is the most common heart rhythm disorder. For patients suffering atrial fibrillation direct current cardioversion is performed to reduce patients symptoms and prevent disease progression. The optimal energy selection for biphasic cardioversion is unknown. We aim to investigate the efficiency and safety of a high energy shock protocol (360 J) versus a standard escalating shock protocol (125-150-200 J) in cardioversion of atrial fibrillation.

Title: CLOSE-guided pulmonary vein isolation (PVI) as Cure for Paroxysmal Atrial Fibrillation ('CLOSE to CURE' study) Design: This is a prospective, observational, single-center, unblinded, clinical 3-year study. Background: In a population of paroxysmal atrial fibrillation (AF) 'CLOSE'-guided PVI, a new approach to obtain single-procedure durable PVI, has been shown to virtually eliminate recurrence of AF at 1 year follow-up with repetitive but discontinuous Holter monitoring. Objectives: (1) To objectively compare atrial tachyarrhythmia (ATA) burden before and after 'CLOSE'-guided based PVI using continuous monitoring. (2) To assess ATA burden using continuous monitoring up to 3 years after ablation. (3) To identify baseline structural and electrical properties of the atria or procedural characteristics that predict 1-year and 3-year outcome. Enrollment: Up to 100 subjects will be enrolled in this observational, prospective study. Clinical Sites: 1 site. Subject Population: Eligible patients are patients with paroxysmal high-burden AF who are planned for a 'CLOSE'-guided PV isolation. At the time of procedural planning we will ask the patient his/her consent for (1) implantation of a subcutaneous continuous loop recorder (sCLR), (2) a concise electrophysiological study at the time of PVI, (3) a transthoracic echocardiogram at the time of PVI and (4) collection of data during 3 years. Anti-arrhythmic drug treatment (ADT) and oral anticoagulation (OAC) will be given according the updated 2012 European society of Cardiology (ESC) guidelines on AF (Camm et al, European Heart Journal 2012) and the 2012 Heart rhythm society (HRS)/European Heart Rhythm association/European cardiac arrhythmic society Expert Consensus Statement on catheter and surgical ablation of atrial fibrillation (Calkins et al, Heart Rhythm 2012).