Clinical Research Directory

Inclusion Criteria: * Males or females eighteen (18) to eighty five (85) years old * Paroxysmal atrial fibrillation * Previous pulmonary vein isolation * Suitable candidate for catheter ablation * Signed informed consent Exclusion Criteria: * Contraindication to catheter ablation * Presence of a cardiac thrombus * Valvular disease that is grade moderate or greater * Any form of cardiomyopathy * On amiodarone therapy * Patients who lack capacity * Active gastrointestinal bleeding * Active infection or fever * Renal failure (Creatinine \>200µmol/L) * Life expectancy shorter than the duration of the trial * Bleeding or clotting disorders or inability to receive heparin * Pregnant