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There is an increasing evidence linking inflammation to some cardiovascular conditions, such as coronary artery disease and hypertension. Similarly, there is emerging data to support the association between inflammation and atrial fibrillation (AF). We also investigated the role of systemic inflammation in different categories of AF.

Eighty five consecutive patients with AF were enrolled in this study. AF was categorized as new onset, chronic (persistent and permanent) and lone. Age- and sex-matched 30 healthy people consisted of control group. Serum level of high sensitive C-reactive protein (hs-CRP) and interleukin-6 (IL-6) was measured.

Serum hs-CRP level was higher in overall AF patients than in controls (0.63±0.57 vs 0.23±0.1 mg/dL, p=0.001). Similarly, IL-6 level was also higher in all AF patients compared with controls (29±36 vs 11.6±9.7 pg/mL, p=0.008). In …