IL6 and chronic obstructive pulmonary disease: In Deftereos et al. report revealed that the patients having catheter ablation of atrial fibrillation (AF) with 3 days of colchicine use, these colchicine users with lower levels of C-reactive protein (CRP) and IL-6 had a lower incidence of cardiac arrhythmia, such as AF recurrence, than did colchicine non-users; this finding is in accordance with that of the present study also (38).