The purpose of this study is:~To assess the efficacy of oral prednisone in improving the outcomes of pulmonary vein isolation with radiofrequency ablation.~To measure the inflammatory cytokine (TNF-α, IL-1, IL-6, IL-8) response to radiofrequency ablation for atrial fibrillation with or without prior prednisone treatment.
The primary purpose of this study is to assess the efficacy of oral prednisone in improving the outcomes of pulmonary vein isolation with radiofrequency ablation.