Table 1 Preoperative baseline characteristics, intraoperative and postoperative parameters of AAA patients

Age (years)

69.0 (63.0–75.0)

69.0 (63.0–75.0)

66.5 (59.3–73.0)

0.157

68.5 (60.8–75.0)

69.0 (64.0–74.8)

0.471

Male sex (n, %)

263 (83.8%)

218 (84.5%)

45 (80.4%)

0.447

47 (87.0%)

216 (83.1%)

0.473

Baseline SCr (umol/L)

90.0 (75.8–114.2)

89.0 (75.0–112.0)

99.5 (78.0–128.8)

0.241

105.0 (75.8–172.8)

90.0 (75.3–108.0)

0.015

Baseline blood urea nitrogen (mmol/L)

5.9 (4.7–7.7)

5.8 (4.7–7.6)

6.1 (4.8–7.9)

0.502

7.4 (4.8–10.9)

5.8 (4.7–7.3)

0.006

Baseline eGFR (ml/min/1.73m²)

69.3 ± 25.4

69.3 ± 24.5

69.4 ± 29.6

0.982

61.5 ± 31.5

71.0 ± 23.7

0.040

Ruptured abdominal aortic aneurysm (n, %)

54 (17.2%)

41 (15.9%)

13 (23.2%)

0.188

—

—

—

Renal artery involvement (n, %)

30 (9.6%)

22 (8.5%)

8 (14.3%)

0.184

0 (0.0%)

30 (11.5%)

0.004

Hypertension (n, %)

186 (59.2%)

153 (59.3%)

33 (58.9%)

0.959

33 (61.1%)

153 (58.8%)

0.758

Cardiovascular diseases (n, %)

48 (15.3%)

43 (16.7%)

5 (8.9%)

0.145

4 (7.4%)

44 (16.9%)

0.096

Diabetes mellitus (n, %)

26 (8.3%)

22 (8.5%)

4 (7.1%)

0.733

5 (9.3%)

21 (8.1%)

0.774

 Open aneurysm repair (n, %)

56 (17.8%)

—

—

—

13 (24.1%)

43 (16.5%)

0.188

 Endovascular aneurysm repair (n, %)

258 (82.2%)

—

—

—

41 (75.9%)

217 (83.5%)

0.188

Operative duration > 230 min (n, %)

150 (47.8%)

114 (44.2%)

36 (64.3%)

0.006

32 (59.3%)

118 (45.4%)

0.063

Intraoperative hemorrhage > 1 L (n, %)

57 (18.2%)

38 (14.7%)

19 (33.9%)

0.001

29 (53.7%)

28 (10.8%)

<0.001

Vasoactive support (n, %)

38 (11.8%)

25 (9.7%)

13 (23.2%)

0.005

26 (48.1%)

12 (4.6%)

<0.001

AKI (n, %)

94 (29.9%)

70 (27.1%)

24 (42.8%)

0.020

26 (48.1%)

68 (26.2%)

0.001