The RECORD Asia-Pacific Atrial Fibrillation Registry

Inclusion Criteria: * Patient presenting with either: * History of atrial fibrillation diagnosed \< 1 year by standard Electro-Cardiogram (ECG) or by ECG-Holter monitoring (treated or not or whatever rhythm at inclusion). * New atrial fibrillation diagnosed by standard ECG or by ECG-Holter monitoring at inclusion visit. * Patient eligible for a pharmacological treatment of AF (by rhythm or rate control agent). Exclusion Criteria: * AF due to transient cause (thyrotoxicosis, alcohol intoxication, acute phase of myocardial infarction, pericarditis, myocarditis, electrocution, pulmonary embolism or other pulmonary disease, hydroelectrolytic disorder, metabolic disorder, etc.). * Post cardiac surgery AF (≤3 months). * Mentally disabled patients unable to understand or sign the written informed consent. * Patients unable to comply with follow-up visits. * Patients with pacemaker, Implantable Cardioverter Defibrillator (ICD). * Patients scheduled for pulmonary vein ablation, AV node/His bundle ablation, or pacemaker implantation. * Patient included in any clinical trial in the previous 3 months. * Pregnant or breastfeeding women. The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.