Table 2 Perioperative outcomes before and after propensity score matching

Number

40

46

32

32

Neurologic dysfunction

3 (7.5%)

5 (10.9%)

0.869

3

2

0.641

Acute kidney injury

4 (10.0%)

8 (17.4%)

0.500

3

6

0.281

Hepatic dysfunction

2 (5%)

6 (13.0%)

0.363

2

5

0.230

Sepsis

0

1 (2.2%)

< 0.001

0

1

0.313

Tracheotomy

1 (2.5%)

1 (2.2%)

0.537

1

1

1.00

Low cardiac output syndrome

1 (2.5%)

1 (2.2%)

0.537

1

1

1.00

Sternal complications

2 (5%)

1 (2.2%)

0.901

2

1

0.554

Hospital time (days)

21.2 ± 9.9

19.9 ± 8.6

0.568

22.7 ± 8.2

20.1 ± 8.5

0.218

Hospital costs (1000 RMB)

165.7 ± 31.7

171.2 ± 34.5

0.223

163.4 ± 30.1

168.1 ± 32.9

0.553