Since CRP did not change and was not associated with restoration of sinus rhythm with ablation or progression from paroxysmal to persistent AF, we believe that the ablation induced injury with consecutive activation of the inflammatory response may be a contributor to AF recurrences which is also supported by previous studies [17], [18] and our finding of total ablation time being the only predictor of AF recurrence. Here, CRP is linked to atrial fibrillation.