Active clinical trials for "Atrial Fibrillation"

A multi-center, retrospective, single arm post market registry to evaluate procedural outcomes data using the Cardiva VASCADE MVP Venous Vascular Closure System (VVCS) for the management of the femoral venotomy after catheter-based atrial fibrillation interventions with or without another arrythmia performed via 6-12F procedural sheaths with single or multiple access sites per limb for patients who are discharged the same day.

This is a multi-center, prospective, non-randomized study to evaluate the performance of the study watch PPG algorithm in detecting irregular rhythms suggestive of atrial fibrillation (AF) in subjects at risk of having an event of AF in the free living (home) environment.

The goal of this study is to validate the Fitbit ECG software algorithm's ability to detect atrial fibrillation using data derived from a Fitbit wrist-worn consumer device that features a single lead ECG. The performance of the software application will be measured against centralized Core Lab physician-adjudicated 12-lead ECG tracings from FDA cleared ECG monitors as reference standards. The Fitbit software is intended as a pre-screening technology. It should identify candidates who may benefit from further evaluation. The software is not intended to be a diagnostic system.

Atrial fibrillation is the most common cardiac arrhythmia, the incidence of which increases drastically with age. As more and more elderly patients undergo heart surgery, the proportion of patients in this population will increase. Atrial fibrillation has been shown to be a poor prognostic factor in several surgical situations. The aim of our study was to assess long-term mortality among patients with preoperative AF under various cardiac surgery settings, with a particular emphasis on the strategy of coronary revascularization.

This study is to investigate the correlation and to obtain the coefficient of correlation between the global and local bipolar signals (voltage maps) of the LA in sinus rhythm using a focal 4.5 mm irrigated-tip ablation catheter (in combination with microelectrodes), a ring-electrode circular mapping catheter and a microelectrode multipolar catheter in combination with the Rhythmia system.

Atrial fibrillation (AF) is the most common atrial arrhythmia. Ablation of AF is a recent technique, nevertheless, the success rates of ablation vary between 50% and 70% depending on the paroxysmal or persistent nature of AF. These rates are difficult to assess in routine practice because they are based on the recurrence of fibrillation. The Vitaphone is a non-invasive device, with which the patient can record a single-track ECG as his or her symptoms take place. The plot is then transmitted via the internet to the centre, which can thus diagnose a relapse of AF. The aim of our study is to correlate the rhythm and symptoms of 20 patients with Vitaphone 6 months after AF ablation and to compare them with 20 other patients receiving conventional monitoring.

This is a retrospective cohort study of radiofrequency ablation for the treatment atrial fibrillation(AF). Based on the electrophysiological phenomena found in these cases, the investigators propose a hypothesis regarding the underlying electrophysiological mechanism of AF, as well as a novel approach for catheter ablation of AF.

To investigate the prognostic impacts of the atrial fibrillation burden (AFb) in acute myocardial infarction (AMI) patients who developed paroxysmal new-onset atrial fibrillation (NOAF) during the index AMI hospitalization.

Radiotherapy associated Atrial Fibrillation (RADAF) is an observational study to evaluate onset time and frequency of atrial fibrillation in patients with thoracic malignancies and breast cancer. Each patient will have 12 lead ECG prior, and daily during radiotherapy.

The SWAF study will compare the performance of a smartwatch combined with Cardiologs Platform algorithm in the detection of Atrial Fibrillation and other arrhythmias with that measured on a manually read 12-lead ECG in subjects hospitalized for cardioversion or AF ablation.