Table 2 Characterization of the analyzed patients

Preoperative characterization

Median age (IQR^a)

70 (64–76)

67 (62–73)

0.008

Sex

0.046

 Male

56

59.57%

243

70.64%

Preoperative creatinine, mean, ± SD^b

1.34, ± 0.57

1.33, ± 0.63

0.779

LVEF^c (%), mean, ± SD

52.00, ± 17.00

51.65, ± 18.00

0.905

Diabetes mellitus treatment

0.332

 Uncontrolled

0

0%

6

3.16%

 Oral hypoglycemic agents

28

50.91%

113

59.47%

 Insulin

23

41,825

56

29.47%

AMI^d

52

55.91%

189

55.1%

0.050

Previous Stroke

8

50%

24

40.68%

0.642

CCS^e grading of angina pectoris

0.715

 I

42

45.16%

160

47.02%

 II

20

21.51%

84

24.78%

 III

18

19.35%

59

17.04%

 IV

13

13.98%

36

10.62%

NYHA^f classification

0.122

 I

54

58.7%

236

69.41%

 II

12

13.04%

44

12.94%

 III

18

19.57%

38

11.18%

 IV

8

8.7%

22

6.47%

STS^g mortality (%), mean ± SD

2.08%, ± 2.01%

1.29%, ± 1.09%

 < 0.001

STS stroke (%), mean ± SD

1.51%, ± 1.15%

1.22%, ± 0.80%

0.019

STS kidney failure (%), mean, ± SD

3.21%, ± 4.86%

1.85%, ± 2.65%

0.013

STS prolonged orotracheal intubation (%), mean, ± SD

8.18%, ± 7.97%

5.25%, ± 3.77%

0.001

STS reoperation, mean ± SD

2.41%, ± 0.71.025%

2.10%, ± 0.75%

0.014