Table 1 Clinical characteristics of perioperative patients

Preoperative data

Male, n(%)

86.5 (32)

65.6 (40)

0.033

Age, year

65.54 ± 10.11

59.36 ± 7.97

0.002

BMI

26.45 ± 2.77

23.98 ± 2.92

<0.001

Hypertension, n (%)

54.1 (20)

50.8 (31)

NS

Diabetes mellitus, n (%)

24.3 (9)

14.8 (9)

NS

Myocardial infarction, n (%)

10.8 (4)

6.6 (4)

NS

Cerebral infarction, n (%)

5.4 (2)

8.2 (5)

NS

Renal insufficiency, n (%)

10.8 (4)

6.6 (4)

NS

Cigarette smoking, n (%)

35.1 (13)

41.0 (25)

NS

Statins, n (%)

48.6 (18)

34.4 (21)

NS

LVEF, %

56.78 ± 9.99

56.51 ± 8.23

NS

Pulmonary hypertension, n (%)

16.2 (6)

16.4 (10)

NS

Serum TC, mmol/l

4.64 ± 1.05

4.14 ± 1.05

0.016

Serum TG, mmol/l

2.27 ± 1.88

2.25 ± 2.13

NS

Operative procedures

Number of graftings, n

2.70 ± 0.94

2.08 ± 0.726

0.001

CPB time, min

103.73 ± 37.01

79.26 ± 28.10

<0.001

Aortic clamping time, min

64.05 ± 23.31

51.73 ± 64.05

0.01

Fluid balance, ml

2605.81 ± 1235.09

2550.82 ± 771.55

NS

Postoperative data

Volume of transfusion, ml

729.73 ± 790.52

277.05 ± 382.16

<0.001

Serum TC, mmol/l

2.74 ± 0.061

2.91 ± 0.87

NS

Serum TG, mmol/l

1.48 ± 1.21

1.20 ± 0.69

NS

FFA, mmol/l

0.87 ± 0.28

0.66 ± 0.22

<0.001

Outcome

Incubation time, hour

24.84 ± 15.52

21.61 ± 15.09

NS

ICU time, day

3.65 ± 2.50

2.59 ± 2.59

0.027

Hospital time, day

19.92 ± 3.28

18.46 ± 7.11

NS

Mortality, n (%)

2.7 (1)

0 (0)

NS