Skip to main content

Table 2 Intraoperative characteristics and outcomes between Non-AKI group and AKI group

From: Association of intraoperative hypotension with acute kidney injury after liver resection surgery: an observational cohort study

Parameter

Non-AKI group (n = 756)

AKI group (n = 40)

P

Chi-squared

Intraoperative characteristics

 Nadir MAP (mmHg), mean ± SD

71.52 ± 8.19

66.92 ± 12.33

0.027

 

 Hypotension, n(%)

145 (19.2%)

19 (47.5%)

< 0.001

18.626

 Norepinephrine use, n(%)

72 (9.5%)

9 (22.5%)

0.015

 

 Dopamine use, n(%)

16 (2.1%)

1 (2.5%)

0.588

 

 Milrinone use, n(%)

91 (12.0%)

6 (15.0%)

0.617

 

 Received red blood cell, n(%)

76 (10.1%)

11 (27.5%)

0.002

 

 Received plasma, n(%)

45 (6.0%)

9 (22.5%)

0.001

 

 Crystalloid (ml), Median [25th to 75th P]

1500 [1000–1500]

1500 [1000–2000]

0.006

 

 Hydroxyethyl starch (ml), Median [25th to 75th P]

500 [500–500]

500 [500–1000]]

0.211

 

 Blood loss (ml), Median [25th to 75th P]

200 [100–300]

300 [100–775]

0.011

 

 Urine volume (ml), Median [25th to 75th P]

400 [200–500]

500 [263–700]

0.051

 

 Clamping of portal vein times (n), Median [25th to 75th P]

1 [1–2]

2 [1–2]

0.609

 

 Clamping of portal vein duration (min), Median [25th to 75th P]

20 [15–30]

25 [17–30]

0.736

 

 Surgery duration (hours), Median [25th to 75th P]

3.0 [2.5–4.0]

4.0 [3.1–4.5]

0.001

 

Postoperative laboratory characteristics

 Peak AST (IU/L), Median [25th to 75th P]

172.9 [101.9–313.0]

303.7 [151.5–721.0]

0.001

 

 Peak ALT (IU/L), Median [25th to 75th P]

182 [106–337]

269 [150–715]

0.002

 

 Peak sCr (μmol/L), Median [25th to 75th P]

64.0 [53.0–76.1]

91.5 [74.4–138.5]

< 0.001

 

 Minimum eGFR (ml/min/1.73m2), Median [25th to 75th P]

81.2 [68.1–100.6]

53.1 [38.4–69.7]

< 0.001

 

 Peak BUN (μmol/L), Median [25th to 75th P]

5.7 [4.8–6.8]

7.3 [5.5–10.0]

< 0.001

 

ICU admission, n(%)

46 (6.1%)

7 (17.5%)

0.013

 

Hospital length of stay (days), Median [25th to 75th P]

12 [10–14]

14 [10–20]

0.027

 

Re-operation, n(%)

4 (0.5%)

1 (2.5%)

0.228

 

Mortality, n(%)

2 (0.3%)

1 (2.5%)

0.144

 
  1. AKI acute kidney injury, MAP mean arterial pressure, 25th to 75th P 25th to 75th percentiles, AST aspartate aminotransferase, ALT alanine aminotransferase, sCr serum creatinine, eGFR estimated glomerular filtration rate, BUN blood urea nitrogen, ICU intensive care unit