Arrhythmia Restart Prevention and RatE STabilization in Atrial Fibrillation

Inclusion Criteria: * Patient with documented atrial fibrillation: at least one episode of paroxysmal AF documented 6 months prior to inclusion, lasting more than one minute * Patient with a brady-tachy syndrome or a sick sinus syndrome, with a permanent pacing indication * Atrial lead with a tip-to-ring interval equal to or less than 12 mm * Patient who agrees with and has signed the informed consent Exclusion Criteria: * Permanent AF * AF related to a reversible cause * One electrical cardioversion 6 months prior to inclusion * Unstable angina * Myocardial infarction (MI) less than 3 months * Planned cardiac surgery or performed in the last 3 months * Congestive heart failure, New York Heart Association (NYHA) class IV * Life expectancy less than 18 months * Patient participating in other studies * Patient not able to follow the FU calendar * Less than 18 years of age * Pregnancy