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Table 2 Clinical outcomes after surgery

From: Impact of severe left ventricular dysfunction on in-hospital and mid-term outcomes of Chinese patients undergoing first isolated off-pump coronary artery bypass grafting

 

Severe group

Impaired group

Normal group

P value (p1 | p2)

In-hospital outcomes

n = 128

n = 680

n = 1224

 

In-hospital mortality

6 (4.7%)

11 (1.6%)

14 (1.1%)

0.03 | 0.002

Circulatory morbidity

 New onset of MI

5 (3.9%)

17 (2.5%)

20 (1.6%)

0.37 | 0.07

 Low cardiac output

25 (19.5%)

55 (8.1%)

50 (4.1%)

<0.001 | <0.001

 IABP support

25 (19.5%)

55 (8.1%)

50 (4.1%)

<0.001 | <0.001

 Reoperation for bleeding

3 (2.3%)

11 (1.6%)

15 (1.2%)

0.56 | 0.29

 Prolonged ventilation (>48 h)

11 (8.6%)

24 (3.5%)

13 (1.1%)

0.01 | <0.001

 Stroke

5 (3.9%)

25 (3.7%)

41 (3.3%)

0.90 | 0.74

 Acute renal failure

4 (3.1%)

10 (1.5%)

15 (1.2%)

0.19 | 0.08

 DSWI

5 (3.9%)

13 (1.9%)

20 (1.6%)

0.16 | 0.07

 Red blood cell transfusion

24 (18.8%)

89 (13.1%)

165 (13.5%)

0.09 | 0.10

 Length of ICU stay (d)

3.9 ± 1.9

1.9 ± 1.2

1.6 ± 1.1

<0.001 | <0.001

Follow-up outcomes

n = 122

n = 610

n = 1103

 

 All-cause mortality

11 (9.0%)

45 (7.4%)

73 (6.6%)

0.53 | 0.32

 Cardiac-cause deaths

4 (4.3%)

11 (1.8%)

16 (1.5%)

0.29 | 0.13

 Repeat revascularization

4 (3.3%)

14 (2.3%)

26 (2.4%)

0.52 | 0.53

  1. p1, p value for the severe group vs. the impaired group; p2, p value for the severe group vs. the normal group; MI, myocardial infarction; IABP, intra-aortic balloon pump; DSWI, deep sternal wound infection; ICU, intensive care unit