Table 4 Multivariate analysis of patients with major complications and prolonged CICU LOS

Age > 60 years

1.68(1.23–2.31)

 < 0.01

3.20(1.65–6.20)

 < 0.01

NYHA classification 4

4.03(1.74–9.33)

 < 0.01

Diabetes mellitus

2.57(1.22–5.41)

0.01

ASA classification > 3

1.33(0.85–2.08)

0.21

2.49(0.82–7.54)

0.11

Intraoperative RBC transfusion > 650 ml

1.16(0.84–1.60)

0.38

2.04(1.13–3.66)

0.02

Intraoperative bleeding > 1200 ml

1.19(0.79–1.80)

0.40

2.69(1.42–5.12)

 < 0.01

Max HR at the end of surgery > 120 bpm

1.68(0.84–3.39)

0.15

1.94(0.62–6.12)

0.26

CPB > 180 min

1.62(1.03–2.55)

0.04

1.91(0.86–4.26)

0.11

Intraoperative Dextrmetomidine

0.51(0.35–0.74)

 < 0.01

0.37(0.19–0.73)

 < 0.01

Intraoperative Milrinone > 4 mg

1.04(0.53–2.03)

0.91

1.92(0.57–6.45)

0.29

Intraoperative dopamine > 60 mg

1.27(0.72–2.24)

0.42

1.21(0.40–3.62)

0.73

Postoperative Mechanical ventilation time > 10 h

1.84(1.35–2.52)

 < 0.01