Feasibility of Ethanolization of Vein of Marshall With Specific Catheter in Atrial Fibrillation Ablation

Who May Qualify: - Suitable candidate for catheter ablation of atrial fibrillation defined as: - history of symptomatic persistent atrial fibrillation - Redo procedure for persistent AF or paroxysmal AF with isolated PV and no history of ethanol infusion in the VOM. - Age \> 18 years of both genders - Patient affiliated or beneficiary of social security scheme - Free, informed and written consent signed by the participant and the principal investigator (at least at the inclusion date and before all exams required for the clinical research) - Effective contraception for women of childbearing potential Who Should NOT Join This Trial: - Minor - Documented left atrial thrombus or another abnormality which precludes catheter introduction - Contraindication to anticoagulation therapy (heparin, warfarin, or novel oral anticoagulant \[NOAC\] - Contraindication to iodinated contrast product XENETIX® (iobitridol hypersensivity or at one of these excipients, history of major immediate reaction or cutaneous reaction to XENETIX® infusion, thyrotoxicosis) - Hypersensitivity to ethanol - Unstable angina or ongoing myocardial ischemia - Myocardial infarction within 3 months prior to inclusion - Congenital heart disease, where the underlying abnormality increases the ablation risk - Severe bleeding, clotting or thrombotic disorder - Pregnant, parturient or nursing women - Unable or unwilling to provide written willing to sign a consent form - Patient detained by judicial or administrative order - Patient under psychiatric care - Patient admitted in a social or healthcare establishment for any purpose other than the research - Subject to a legal protection order (guardianship, patient under legal protection) Always talk to your doctor about whether this trial is right for you.