Efficacy and Safety of Electrical Versus Pharmacological Cardioversion in Early Atrial Fibrillation

External cardioversion was performed in anteroposterior position (right sternal body at the third intercostal space-angle of the left scapula); patients were submitted to a biphasic wave-form sequential shock of 100-150-200 J, if necessary.

Propafenone (2 mg/kg bolus) was administered to obtain pharmacolgic sinus rhythm conversion.