Table 1 Comparison of preoperative variables.

From: Surgical outcomes of acute type A aortic dissection in dialysis patients: lessons learned from a single-center’s experience

Variables

Total (n = 882)

Overall cohort

PSM cohort

Non-dialysis (n = 866)

Dialysis (n = 16)

P Value

Non-dialysis (n = 16)

Dialysis (n = 16)

P Value

DeBakey type I (%)

727 (82.4)

715 (82.6)

12 (75.0)

0.503

13 (81.3)

12 (75.0)

1.000

Demographic data

Age (year)

53.0 ± 13.2

53.1 ± 13.2

47.1 ± 11.2

0.069

54.2 ± 10.5

47.1 ± 11.2

0.073

Male (%)

646 (73.2)

638 (73.7)

8 (50.0)

0.045

8 (50.0)

8 (50.0)

1.000

Obesity (BMI > 30 kg/m2) (%)

99 (14.1)

99 (14.4)

0 (0)

0.147

2 (18.2)

0 (0)

0.157

Medical history

Hypertension (%)

639 (72.4)

623 (71.9)

16 (100)

0.009

16 (100)

16 (100)

–

Diabetes mellitus (%)

20 (2.3)

20 (2.3)

0 (0)

1.000

0 (0)

0 (0)

–

Previous cardiovascular disease (%)

28 (3.2)

28 (3.2)

0 (0)

1.000

1 (6.3)

0 (0)

1.000

Cerebrovascular disease (%)

33 (3.8)

32 (3.7)

1 (9.1)

0.346

1 (6.3)

1 (9.1)

1.000

Marfan syndrome (%)

24 (2.7)

24 (2.8)

0 (0)

1.000

2 (12.5)

0 (0)

0.484

Previous cardiac surgery (%)

PCI (%)

9 (1.0)

9 (1.0)

0 (0)

1.000

1 (6.3)

0 (0)

1.000

TEVAR (%)

18 (2.1)

18 (2.1)

0 (0)

1.000

2 (12.5)

0 (0)

0.499

CABG (%)

1 (0.1)

1 (0.1)

0 (0)

1.000

0 (0)

0 (0)

–

AVR (%)

14 (1.6)

14 (1.6)

0 (0)

1.000

1 (6.3)

0 (0)

1.000

Limb ischemia (%)

107 (12.1)

107 (12.4)

0 (0)

0.242

3 (18.8)

0 (0)

0.226

Mesenteric ischemia (%)

34 (3.9)

34 (3.9)

0 (0)

1.000

1 (6.3)

0 (0)

1.000

Cerebral ischemia (%)

78 (8.8)

77 (8.9)

1 (6.3)

1.000

4 (25.0)

1 (6.3)

0.333

Coronary ischemia (%)

46 (5.2)

46 (5.3)

0 (0)

1.000

3 (18.8)

0 (0)

0.226

Location of the entry tear

Ascending aorta (%)

556 (63.0)

549 (63.4)

7 (43.8)

0.107

8 (50.0)

7 (43.8)

0.723

Aortic arch (%)

117 (13.3)

113 (13.0)

4 (25.0)

0.252

3 (18.8)

4 (25.0)

1.000

Descending aorta or unknown (%)

209 (23.7)

204 (23.6)

5 (31.3)

0.552

4 (25.0)

5 (31.3)

1.000

Hypotension (%)

26 (2.9)

24 (2.8)

2 (12.5)

0.078

3 (18.8)

2 (12.5)

1.000

Pericardial tamponade (%)

151 (17.1)

147 (17.0)

4 (25.0)

0.498

0 (0)

4 (25.0)

0.101

Preoperative laboratory data

WBC (109/L)

11.0 (8.3, 14.1)

11.1 (8.4, 14.1)

7.7 (6.3, 9.7)

0.014

14.0 ± 6.3

8.6 ± 3.0

0.008

Haemoglobin (g/L)

123.5 ± 29.2

124.1 ± 29.0

88.3 ± 14.7

 < 0.001

111.6 ± 26.3

88.3 ± 14.7

0.012

PLT (109/L)

144.0 (108.0, 184.0)

144.0 (108.0, 184.0)

141.5 (123.8, 177.3)

0.899

113.1 ± 56.3

149.6 ± 43.0

0.067

Fibrinogen (g/L)

2.5 ± 1.4

2.5 ± 1.4

2.9 ± 1.1

0.140

2.2 ± 0.9

2.9 ± 1.1

0.077

Triglyceride (mmol/L)

1.0 (0.7, 1.5)

1.0 (0.7, 1.5)

1.4 (0.6, 1.6)

0.639

0.8 (0.5, 1.3)

1.4 (0.6, 1.6)

0.417

CRP (mg/dl)

19.2 (4.6, 75.7)

19.2 (4.6, 76.4)

28.2 (4.9, 54.7)

0.902

29.9 (7.4, 71.0)

28.2 (4.9, 54.7)

0.461

D-dimer (ng/mL)

4.7 (2.3, 9.4)

4.6 (2.3, 9.4)

5.9 (4.5, 10.4)

0.076

7.1 (2.8, 22.8)

5.9 (4.5, 10.4)

0.661

Albumin (g/L)

37.3 (33.8, 40.1)

37.3 (33.8, 40.1)

34.1 (31.0, 38.0)

0.134

34.6 ± 5.3

34.8 ± 4.7

0.934

TnT (ng/ml)

0.02 (0.01, 0.14)

0.02 (0.01, 0.14)

0.06 (0.03, 0.12)

0.046

0.08 (0.04, 0.21)

0.06 (0.03, 0.12)

0.568

ALT (U/L)

25.6 (15.7, 46.9)

25.6 (15.8, 47.0)

15.2 (9.9, 53.5)

0.185

49.3 (18.4, 194.5)

15.2 (9.9, 53.5)

0.062

Bun (mmol/L)

7.2 (5.6, 9.5)

7.1 (5.5, 9.4)

18.3 (13.5, 28.4)

 < 0.001

10.7 ± 2.8

20.8 ± 9.5

 < 0.001

sCr (mg/dl)

112.7 ± 129.3

99.2 ± 70.3

841.8 ± 345.1

 < 0.001

160.6 (115.5, 203.1)

786.9 (585.8, 988.9)

 < 0.001

eGFR (ml/min)

85.6 ± 43.0

87.8 ± 41.6

9.4 ± 5.6

 < 0.001

80.3 ± 20.5

9.4 ± 5.6

 < 0.001

Total bilirubin (mg/dl)

15.3 (10.8, 22.6)

15.3 (10.9, 22.6)

7.0 (4.9, 16.2)

0.002

18.5 (11.9, 29.7)

7.0 (4.9, 16.2)

0.004

INR

1.1 (1.0, 1.2)

1.1 (1.0, 1.2)

1.3 (1.1, 1.6)

0.011

1.2 (1.1, 1.3)

1.3 (1.1, 1.6)

0.415

APTT (s)

28.9 (26.2, 35.2)

28.9 (26.2, 35.1)

29.3 (25.4, 42.3)

0.568

30.1 (27.0, 38.6)

29.3 (25.4, 42.3)

0.968

  1. Values for categorial variables are given as count (percentage); values for continuous variables are given as median (interquartile range) or mean ± standard deviation.
  2. BMI body mass index, WBC white blood cell, Bun blood urea nitrogen, sCr serum creatinine, PLT platelet, ALB albumin, CRP c-reactive protein, eGFR estimated glomerular filtration rate, INR international normalized ratio, PSM propensity score matching.
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