Active clinical trials for "Atrial Fibrillation"

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.

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.

Atrial fibrillation is the major cause of acute ischemic stroke. The risk of stroke was shown to decline by oral anticoagulant therapy. The investigators intended to evaluate appropriate use of anticoagulants in non-valvular AF patients.

This study is being conducted to collect data on the management of major bleeding events occurring in patients with atrial fibrillation taking dabigatran etexilate.

The purpose of this study is to assess if pre-ablation levels of inflammatory biomarkers serve as independent predictors of procedure outcome To evaluate the inflammatory activation following catheter ablation by measuring serum-biomarker levels 24-hours after the procedure and examine the predictive role in procedure success To study the association of certain biomarkers with specific types of AF (paroxysmal or persistent or long standing persistent)

This cohort study is the sequential expansion of the comparative effectiveness study of oral anticoagulants and plans to identify initiators of oral anticoagulants using electronic claims data from a commercial insurance database to quantify associations between anticoagulant choice (warfarin and dabigatran) and the occurrence of selected outcomes in patients with non-valvular atrial fibrillation at risk for stroke.

To evaluate a new AF Substrate mapping method based on automatic high density CFAE detection with a multipolar catheter (Pentaray) and the " SCI 30-40 " setting of CARTO CFAE algorithm.

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

1600 AF patients receiving Pradaxa or VKA for stroke prevention will be followed up for 12 months in quarterly visits. Prescriptions, adverse events and (if applicable) reasons for definitive treatment discontinuation will be collected. At 6 months, patient adherence will be assessed, using the Morisky Score.

Purpose To establish the safety and efficacy of the Coherex WaveCrest Left Atrial Appendage Occlusion System for left atrial appendage (LAA) closure during treatment of non-valvular atrial fibrillation in patients who are at increased risk for embolic stroke and have an ongoing indication for oral anticoagulation.