The treatment of patients with paroxysmal atrial fibrillation also requires the administration of anticoagulation. Patients with paroxysmal atrial fibrillation need to be scored for bleeding and ischemic events, and anticoagulation therapy is given accordingly to their scores. In addition, patients with paroxysmal AF often need to be given anticoagulants related to their use prior to radiofrequency ablation procedures, including anticoagulation for three months prior to treatment and anticoagulation for four weeks after treatment, for the prevention of arterial thrombotic events. In addition, patients with paroxysmal atrial fibrillation need to be systematically examined for the presence of hyperthyroidism prior to ablation and treated accordingly. Patients with paroxysmal atrial fibrillation can be restored to sinus rhythm with pharmacological resuscitation or radiofrequency ablation to reduce the occurrence of complications.