Active clinical trials for "Atrial Fibrillation"

Recent studies demonstrated that prolonged rhythm observation increases the detection of atrial fibrillation in patients prior diagnosed as cryptogenic stroke. Detection of atrial fibrillation in these patients has important therapeutic implications for the anticoagulation regimen. However, data on optimal monitoring duration and method of AF detection are limited.

This study is intended to compare the new Carnation Ambulatory Monitoring (CAM) System, a patch monitoring system, with the Holter monitoring system. Holters represent the current standard for continuous recording of the ECG over extended periods.

Patients with persistent irregular heartbeats also called persistent atrial fibrillation usually have a lower probability of curing their arrhythmia with ablation with heat called radiofrequency then those with paroxysmal atrial fibrillation, as previous studies have shown. The emerging ablation with freeze(cryoablation) has not been studied for persistent atrial fibrillation but has been proven to be efficient in the paroxysmal type. We hypothesized that persistent atrial fibrillation will have a freedom of recurrence rate of 70% after use of cryoablation at one year of follow up.

The purpose of this study is to evaluate the diagnostic value of serum NT - proBNP in stroke associated with nonvalvular atrial fibrilltion.

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).

Aim of the project is to assess the long-time clinical impact of surgical ablation (MAZE procedure) on patients who suffer from atrial fibrillation but are indicated to a cardiac surgery for other predominant cardiac diagnosis (heart valve surgery, coronary revascularization or combined surgery). In recent years, those patients are more and more frequently indicated to some type of MAZE procedure, without the real benefit of this procedure for patients has been assessed with an enough large, randomized study. Even though it is well known, that MAZE procedures declines the early postoperative incidence of atrial fibrillation, convincing data about its mid-term and long-term impact on patients and about the appearance of recidives of atrial fibrillation in long-time horizon are still missing. Our hypothesis assumes, that MAZE procedure will significantly decrease the appearance of atrial fibrillation one year after the operation, without increasing mortality or incidence of serious postoperative complications in thirty postoperative days.

The aim of this project is to determine the morphological criteria of apoptosis in atrial tissues of patients with AF versus SR at transcriptome and genomic size.

Endothelial function is closely related to the hemostasis , vascular tone, and organ perfusion in cardiovascular system, and its dysfunction would cause overactivation of the coagulative system to induce thrombus formation. So we study the relationship between the endothelial function and atrial fibrillation.

The purpose of this study is to evaluate the feasibility of detecting atrial fibrillation (AF) in patients with AF using a wearable wrist device/smart watch.

This prospective study aims to investigate if termination of atrial fibrillation (AF) after pulmonary vein antrum isolation (PVAI) without additional ablation of non-PV triggers, in long-standing persistent (LSP) AF, is enough to ensure long-term success.