Active clinical trials for "Atrial Fibrillation"

The goal of this research study is to develop better dosing of anticoagulation medication in both Caucasian and African Americans through analysis of various genetic factors.

The purpose of this study is to determine whether wireless transmission of invasive arterial blood pressure signal (by HMW 10 Wireless System) from patient to patient's bedside monitor is feasible, safe and as accurate as conventional cable connection.

The proposed clinical study aims to validate the diagnostic performance, compared to a reference ECG, of the electrocardiographic function of the BPM Core developed by Withings for the automatic identification of atrial fibrillation (AF).

Withings Move ECG watch is designed to record ECG and detect automatically atrial fibrillation. The aim of this study is to validate the performance of Move ECG watch to detect atrial fibrillation compared to a reference 12-lead ECG.

The optimal antithrombotic treatment for Coronary Heart disease (CHD) patients combined with Atrial Fibrillation (AF) is unresolved at present. Although the European and American guidelines have given a hand for us, there is absence of real-world data on the safety and efficacy of antithrombotic therapy in Asian populations. Only a few clinical trials are available to guide difficult decision on antithrombotic therapy in patients with combined AF and CHD，the investigators highlight the need for the rapid development of clinical trials to close the large gaps in evidence. This research aims to know the real-world use of antithrombotic treatment and clinical prognosis in Coronary Heart Disease patients complicated with Atrial Fibrillation.

Pulmonary vein isolation (PVI) is the cornerstone of atrial fibrillation (AF) ablation. A novel technology was recently developed to allow an automatic points annotation when indirect parameters of lesion formation reach predefined target values. The aim of the study was to evaluate, in a prospective and multicenter study, the safety, efficiency and PVI effectiveness of a new ablation tracking tool (VISITAG; Biosense Webster) during paroxysmal AF ablation using a contact force sensing catheter.

Investigators will assess the impact of treatments for atrial fibrillation on participant's thrombotic status

Background: The incidence of atrial fibrillation(AF) increases substantially with age and it is estimated that more than one third of AF patients are octogenarians. Direct oral anticoagulants (DOACs) were found favorable compared to warfarin with respect to efficacy and safety ( bleeding) across wide range of ages. Nevertheless, the rates of bleeding among elderly patients were shown to increase substantially with all anticoagulants. Dose-adjustments of DOAC are not universally performed among patients older than 80 years old and currently there is paucity of data regarding the actual drugs level among these patients. Accordingly, the investigators sought to investigate the drug levels of the different DOACs among "real world" octogenarians who receiving guideline-recommended dosage. Methods: A cross sectional, prospective study of 120 hospitalized and ambulatory patients who are treated with DOACs for AF. DOACs blood levels with be compared between octogenarians (n=70) and younger patient group ( age≤70 year-old; n=50).The cohort will include: 1)Sixty patients on APIXABAN: 40 octogenarians and 20 younger than 70 years, 2)Forty patients on RIVAROXABAN: 20 octogenarians and 20 younger than 70 years, and 3) Twenty patients treated with DABIGATRAN: 10 octogenarians and 10 younger than 70 years. DOACs Pharmacodynamic analysis will be performed using commercial kits for diluted thrombin time(DTT) and anti-factor Xa activity (AFXa). Drug level will be measured at steady state( through levels) and at Tmax after at least 4 days of complete adherence for DOAC consumption. Study End-Points:The study main objectives are: 1) DOACs levels in octogenarians in comparison to patients younger than 70 years and 2)percentage of patients, in each group, who have target DTT or AFXa ( predicted) at steady state. Potential significance of the study: The results of the study may provide new data on DOACs levels in octogenarians and thus would either support current recommendations or set the ground for further studies aim to optimize DOACs dosage in this vulnerable population.

"Left Atrial Appendage Occlusion and Biomarker Evaluation" (LABEL) is a single-center, prospective and observational study evaluating changes of the expression of biomarkers in eligible patients before and after percutaneous implantation of a left atrial appendage (LAA) occlusion device at mid-term follow-up.

According to current guidelines for non-valvular atrial fibrillation treatment, the first line drugs are non-vitamin K oral anticoagulants (NOACs), which are preferred over vitamin K antagonists (VKAs). However, it is not clearly confirmed, how the success of NOACs approval trials (ROCKET-AF (rivaroxaban), RE-LY (dabigatran) and ARISTOTLE (apixaban) reflects on real-life clinical practice. The aim of this study is to assess treatment of AF patients with oral anticoagulants (OACs) in an academic and district hospital, with regard to inclusion/exclusion criteria used in the clinical trials.