Active clinical trials for "Atrial Fibrillation"

Closure of the LAA by several devices is a alternative therapy to oral anticoagulation in patients with Atrail fibrillation. Nothing is known about the acute influence of a device closure of the LAA on the secretion of ANB nad BNP hormones. Therefore aim of our study is to measure ANB and BNP levvels before and after Implantation of an LAA closure device.

Atrial fibrillation (AF) is the most common arrhythmias in clinical practice. Research investigating hospitalized patients have indicated there are deleterious effects of AF on patients besides the disease burden itself, including longer stay days for hospitalization, higher rates of frailty and increasing mortality rate after discharged in six months. In the community-dwelling research also found that elderly with AF have lower cognitive function, physical functional tests score and slower walking speed compared with the health ones. However, there is limited articles investigating the impact of AF on community-dwelling elderly, and the relationship between AF and frailty is also lack of discussion. According to the aged society and increasing prevalence of AF, the relationship between AF and frailty in community-dwelling elderly is warranting investigated.

Objective. Atrial fibrillation (AF) recurrence after catheter ablation (CA) is a relevant clinical problem. Methods. 123 patients with paroxysmal AF will be identified and screened for participation in this randomized, prospective, double blind, controlled placebo multicenter trial. 109 patients will be randomly assigned and enrolled in the study trial. Enrolled patients will receive magnetic atrial resonance and then will be treated by CA to receive pulmonary vein isolation (PVI). In this patients cytokines, inflammatory markers, and biomarkers such as ST2 protein and B type natriuretic peptide (BNP) will be evaluated at baseline, after CA, and during follow up. These biomarkers will be correlated to clinical outcomes (AF recurrences and heart failure progression and hospitalizations), and to fibrotic atrium extension as evaluated by magnetic resonance.

This research study is being done to find out whether autoimmune mechanisms are associated with the development of atrial fibrillation.

In order to understand the risks and benefits of edoxaban use in a real-world clinical setting in the NVAF indication, Daiichi-Sankyo Thailand proposed this non-interventional study (NIS) to gain insight into the safety (bleeding, liver adverse events, all-cause mortality and other adverse events) of edoxaban use in non-preselected patients with NVAF.

The purpose of this registry is to assess the performance and clinical effectiveness of a combination of SJM mapping and ablation products in the treatment of subjects with atrial fibrillation (AF).

The aim of this study is to evaluate the present status of stroke prevention strategies in patients with non-valvular atrial fibrillation (NVAF). Vitamin K antagonists (VKAs) have been the only available oral anticoagulant therapy for decades. Recently novel oral anticoagulants have emerged as an alternative for VKAs. This study is planned to evaluate the epidemiological characteristics, thromboembolic and bleeding risks, stroke prevention strategies and appropriateness of oral anticoagulant use in NVAF patients. Time in therapeutic range (TTR) is going to be calculated as the percent of visits in range (2-3) for warfarin patients. This is a national multicenter observational study in which Turkey is divided into seven regions. A proportional number of patients to the population of every region is planned to be included.

The present study aimed at evaluating mid-term results of radiofrequency modified maze procedure in mitral patients in terms of sinus rhythm and atrial contractility restoration

The BioMonitor is an implantable cardiac monitor used to automatically detect and record episodes of arrhythmia in patients with bradycardia, tachycardia, asystole and atrial fibrillation. The study will be conducted to support regulatory approvals outside of Europe. This BioMonitor Master study is designed to investigate the clinical efficacy and safety of the BioMonitor.

The primary objective of the study is to determine the rate of detection of sub-clinical atrial fibrillation (≥ 5 minutes)within an average of 12 months following implant of the St. Jude Medical Confirm(R) Implantable Cardiac Monitor in patients with known cardiovascular risk factors and left atrial enlargement, but without prior AF.