Preoperative urine IL-18 concentration was higher in patients who did not develop CSA-AKI (M = 31.05 (23.53–37.62) ng/mL vs. M = 19.93 (9.88–25.06) ng/mL in the AKI group, p = 0.009)—Figure 1f. This evidence concerns the gene IL18 and acute kidney injury.