“…Of the included 19 studies, all of studies showed the rate of AKI after surgery, six of these studies [ 11 – 13 , 27 , 30 , 32 ] also reported postoperative complications other than AKI, only 3 studies [ 16 , 33 , 34 ] were not reported a difference in length of stay (LOS) in the ERAS vs. standard group. 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.…”