IL6 and cerebrovascular disorder: Liu et al. [9] demonstrated in a group of 124 patients undergoing CABG the biomarker value of pericardial IL-6 in the occurrence of POAF 18 h after surgery; 35% of the patients developed POAF within the first 2 days postoperatively, with these patients having a clinical picture dominated by advanced age, the presence of cerebrovascular disease, extensive surgical drainage, and elevated pericardial IL-6 levels.