IL6 and delirium: LV et al. [11] found that plasma IL-6 is a potential biomarker for predicting postoperative delirium in patients with AAAD, with a preoperative cut-off value of 95.45pg/ml, sensitivity of 61.3%, specificity of 79.4%, and AUC value of 0.73 (95% CI, 0.632 ~ 0.833), while the 24-hour post-operation cut-off value was 266.80pg/ml, sensitivity was 71.0% and specificity was 69.8% (Table 2).