“…Rate of 30-day readmission or reoperation reported in 13 studies [ 9 – 12 , 15 , 17 , 25 – 30 , 32 ] and mortality in 8 studies [ 11 , 12 , 14 , 15 , 25 , 26 , 30 , 32 ]. 11 studies adopted the fluid management mode of goal-directed fluid therapy (GDFT) [ 10 – 17 , 27 , 29 , 30 ], 6 studies used restrictive fluid management intraoperatively [ 9 , 25 , 26 , 28 , 33 , 34 ], and the remaining 2 studies [ 31 , 32 ] did not elaborate the fluid management mode. Ten studies [ 9 , 10 , 12 – 15 , 29 , 31 , 33 , 34 ] adopted the KDIGO criteria to evaluate AKI, which 1.5 times the preoperative baseline value within 30 days after operation based on the latest clinical guidelines from the Kidney Disease: Improving Global Outcomes (KDIGO) criteria [ 35 ].…”