Clinical experience of new antiarrhythmic drug refralon for pharmacological cardioversion in patients with atrial fibrillation after pulmonary vein cryoablation

We present two cases of successful pharmacological cardioversion using antiarrhythmic drug refralon in patients with persistent atrial fibrillation after pulmonary vein cryoablation and ineffective electrical cardioversion. These clinical cases represent the first experience of successful use of refralon in patients who underwent cryoablation.