Skip to main content

Table 2 Comparison of demographic, preoperative, intraoperative, and postoperative characteristics between patients with AKI and those without AKI

From: Intraoperative blood transfusion volume is an independent risk factor for postoperative acute kidney injury in type A acute aortic dissection

 

No AKI

Stage 1 AKI

Stage 2 or 3 AKI

P value

N

48

31

51

Age (years), mean (SD)

53.15 (11.61)

57.13 (11.22)

54.78 (12.39)

0.35

Male, n (%)

33 (68.75%)

27 (87.10%)

41 (80.39%)

0.16

Hypertension, n (%)

22 (45.83%)

25 (80.65%)

34 (66.67%)

0.006

Diabetes mellitus, n (%)

1 (2.08%)

3 (9.68%)

4 (7.84%)

0.37

COPD, n (%)

2 (4.17%)

1 (3.23%)

3 (5.88%)

1.00

Stroke, n (%)

3 (6.25%)

2 (6.45%)

3 (5.88%)

1.00

Coronary artery disease, n (%)

1 (2.08%)

4 (12.90%)

2 (3.92%)

0.12

SBP (mmHg), mean (SD)

131.90 (22.70)

125.39 (27.54)

140.27 (32.43)

0.06

DBP (mmHg), mean (SD)

71.02 (16.53)

66.71 (21.57)

78.49 (19.15)

0.018

eGFR [ml/(min.1.73m2)], mean (SD)

100.57 (30.65)

71.53 (22.21)

94.84 (51.22)

0.007

Preoperative hemoglobin (g/l), mean (SD)

125.87 (18.39)

120.77 (22.74)

124.53 (22.44)

0.61

Emergency operation, n (%)

21 (43.75%)

25 (80.65%)

42 (82.35%)

< 0.001

CPB time (min), median (IQR)

176 (120–221)

173 (132–212)

210 (185–244)

0.001

Aortic cross clamp time (min), median (IQR)

96 (76–118)

96 (74–107)

120 (95–127)

0.004

Circulatory arrest time (min), median (IQR)

12 (0–20)

15 (0–24)

18 (8–24)

0.26

Nasopharyngeal temperature (°C), mean (SD)

20.9 (2.1)

20.8 (2.1)

20.4 (2.5)

> 0.05

Total arch replacement, n (%)

20 (41.67%)

18 (58.06%)

38 (74.51%)

0.004

Semi-arch replacement, n (%)

2 (4.17%)

1 (3.23%)

0 (0.00%)

0.35

Stented elephant trunk, n (%)

19 (39.58%)

17 (54.84%)

36 (70.59%)

0.008

Bentall procedure, n (%)

27 (56.25%)

14 (45.16%)

14 (27.45%)

0.014

Ascending aorta replacement, n (%)

21 (43.75%)

17 (54.84%)

35 (68.63%)

0.044

Intraoperative erythrocytes use (ml), median (IQR)

1750 (1050–3375)

2200 (1400–2775)

2950 (1950–4350)

0.007

Intraoperative fresh frozen plasma use (ml), median (IQR)

850 (550–1200)

1000 (575–1550)

1000 (550–1925)

0.55

Intraoperative platelets use (ml), median (IQR)

600 (300–1200)

1200 (900–1200)

1200 (750–1200)

0.006

Intraoperative cryoprecipitate use (ml), median (IQR)

350 (0–500)

475 (250–525)

500 (250–560)

0.11

Intraoperative blood transfusion(ml), median (IQR)

2825 (1988–5538)

4400 (2750–5800)

4850 (3650–6875)

0.007

ARDS, n (%)

8 (16.67%)

13 (41.94%)

31 (60.78%)

< 0.001

Perioperative myocardial infarction, n (%)

0 (0.00%)

0 (0.00%)

2 (3.92%)

0.342

Redo surgery, n (%)

2 (4.17%)

3 (9.68%)

13 (25.49%)

0.007

Length of ICU (day), median (IQR)

4.00 (2.75–5.25)

6.00 (3.50–6.50)

9.00 (3.00–14.50)

0.001

Length of mechanical ventilation (day), median (IQR)

2.00 (1.00–3.00)

2.00 (1.00–4.00)

5.00 (2.00–7.50)

< 0.001

In-hospital mortality, n (%)

2 (4.17%)

5 (16.13%)

14 (27.45%)

0.005

  1. AKI, acute kidney injury; ARDS, adult respiratory distress syndrome; COPD, chronic obstructive pulmonary; CPB, cardiopulmonary bypass; DBP, diastolic blood pressure; eGFR, estimated glomerular filtration rate; ICU, intensive care unit; SD, standard deviation; SBP, systolic blood pressure