Table 1 Preoperative and intraoperative variables in 146 patients undergoing open repair of TAAA.

Preoperative variables

Age ≥ 50 (years)

36 (24.66)

7 (4.79)

29 (19.86)

0.047

10 (6.85)

26 (17.81)

0.051

BMI ≥ 30 (Kg/m²)

13 (8.90)

0 (0)

13 (8.90)

0.461

1 (0.68)

12 (8.22)

0.575

Male

111 (76.03)

13 (8.90)

98 (67.12)

0.222

19 (13.01)

92 (63.01)

0.997

Current smoking

59 (40.41)

5 (3.42)

54 (36.99)

0.706

12 (8.22)

47 (32.19)

0.396

Hypertension

80 (54.79)

9 (6.16)

71 (48.63)

0.453

18 (12.33)

62 (42.47)

0.058

Peripheral vascular disease

14 (9.59)

0 (0)

14 (9.59)

0.421

1 (0.68)

13 (8.90)

0.503

Prior cardiac surgery

30 (20.55)

1 (0.68)

29 (19.86)

0.338

4 (2.74)

26 (17.81)

0.536

Prior TEVAR

24 (16.44)

3 (2.05)

21 (14.38)

0.880

5 (3.42)

19 (13.01)

0.817

Prior open repair of TAAAR

3 (2.05)

0 (0)

3 (2.05)

1.000

2 (1.37)

1 (0.68)

0.076

Marfan syndrome

39 (26.71)

5 (3.42)

34 (23.29)

0.629

7 (4.79)

32 (21.92)

0.873

Aortic aneurysm

134 (91.78)

11 (7.53)

123 (84.25)

0.167

22 (15.07)

112 (76.71)

0.722

Aortic dissection

107 (73.29)

11 (7.53)

96 (65.75)

0.879

18 (12.33)

89 (60.96)

0.873

CAD

5 (3.42)

1 (0.68)

4 (2.74)

0.400

2 (1.37)

3 (2.05)

0.203

Stroke

6 (4.11)

0 (0)

6 (4.11)

1.000

0 (0)

6 (4.11)

0.559

Chronic renal insufficiency

22 (15.07)

0 (0)

22 (15.07)

0.206

3 (2.05)

19 (13.01)

0.870

Carotid artery diseases

17 (11.64)

5 (3.42)

12 (8.22)

0.012

5 (3.42)

12 (8.22)

0.276

Rupture

3 (2.05)

1 (0.68)

2 (1.37)

0.263

1 (0.68)

2 (1.37)

0.433

ASA

0.822

0.478

Class I, II and III

113 (77.40)

10 (6.85)

103 (70.55)

18 (12.33)

95 (65.07)

Class IV

33 (22.60)

4 (2.74)

29 (19.86)

7 (4.79)

26 (17.81)

NYHA

0.216

0.833

Class I and II

133 (91.10)

11 (7.53)

122 (83.56)

22 (15.07)

111 (76.03)

Class III and IV

13 (8.90)

3 (2.05)

10 (6.85)

3 (2.05)

10 (6.85)

Maximum aneurysm diameter (cm)

5.83 ± 2.24

4.68 ± 2.65

5.95 ± 2.17

0.105

5.58 ± 2.54

5.88 ± 2.18

0.637

Hemoglobin<120 (g/L)

16 (10.96)

2 (1.37)

14 (9.59)

1.000

3 (2.05)

13 (8.90)

1.000

RBC<3.5 (10¹²/L)

7 (4.79)

1 (0.68)

6 (4.11)

0.514

2 (1.37)

5 (3.42)

0.757

Albumin<35 (g/L)

14 (9.59)

2 (1.37)

12 (8.22)

0.880

3 (2.05)

11 (7.53)

0.939

HCT<0.35 (%)

39 (26.71)

5 (3.42)

34 (23.29)

0.629

7 (4.79)

32 (21.92)

0.873

Intraoperative variables

Non-elective surgery

6 (4.11)

1 (0.68)

5(3.42)

0.460

2 (1.37)

4 (2.74)

0.601

Preoperative CSFD

41 (28.08)

4 (2.74)

37 (25.34)

1.000

7 (4.79)

34 (23.29)

0.992

Fluid volume (ml)

2836.07 ± 1586.00

4463.21 ± 2583.95

2663.49 ± 1344.87

0.014

3763.40 ± 2337.18

2644.47 ± 1315.59

0.069

ACC time (min)

22.29 ± 24.04

33.86 ± 33.84

21.06 ± 22.59

0.434

34.88 ± 32.75

19.69 ± 21.07

0.041

DHCA

7 (4.79)

2 (1.37)

5 (3.42)

0.136

3 (2.05)

4 (2.74)

0.181

Bleeding volume (ml)

1543.78 ± 1237.73

2450.00 ± 1746.42

1447.67 ± 1138.40

0.010

2028.00 ± 1474.30

1443.74 ± 1165.11

0.014

Volume of RBC (units)

4.36 ± 6.11

14.79 ± 9.58

3.26 ± 4.40

<0.001

9.16 ± 9.69

3.37 ± 4.53

0.008

Volume of plasma (ml)

738.38 ± 897.66

2000.00 ± 1619.12

604.57 ± 666.04

0.001

1416.00 ± 1399.90

598.37 ± 682.86

0.003

Volume of platelet (units)

2.32 ± 0.86

2.43 ± 1.45

2.30 ± 0.78

0.316

2.32 ± 1.11

2.31 ± 0.81

0.758

Use of norepinephrine

46 (31.51)

11 (7.53)

35 (23.97)

<0.001

14 (9.59)

32 (21.92)

0.004

Use of epinephrine

10 (6.85)

6 (4.11)

4 (2.74)

<0.001

7 (4.79)

3 (2.05)

<0.001

Use of dopamine

76 (52.05)

11(7.53)

65 (44.52)

0.037

18 (12.33)

58 (39.73)

0.028