Trial Parameters
Brief Summary
Can Electrical Cardioversion (ECV) for AF be improved. It is the preferred method to restore sinus rhythm in patients with AF in whom a rhythm-control strategy is pursued. Hypothesis: ECV success rates will be greater with a biphasic defibrillator with maximum energy of 360J (® Physio-Control) compared to a biphasic defibrillator with maximum energy of 200J (® Zoll)
Eligibility Criteria
Inclusion Criteria: * Patients age \> 18 years. * Persistent atrial fibrillation. * Scheduled for elective cardioversion at UOHI * Patient is within the circle of care of UOHI Electrophysiology staff Exclusion Criteria: * Known left-atrial appendage thrombus. * Contraindication to appropriate anticoagulation. * Patient is included in another randomized clinical trial. * Patient does not meet all of the above listed inclusion criteria.