Table 2 Multivariate analysis of factors associated with survival
Variable | Hazard Ratio | 95% Confidence Interval | P value |
|---|---|---|---|
Age > 67 years old | 0.645 | 0.343–1.214 | 0.174 |
Gender (male) | 1.638 | 0.829–3.235 | 0.155 |
Weight > 70 kg | 1.740 | 1.048–2.889 | 0.032 |
NYHA class | |||
I | Reference | ||
II | 1.185 | 0.284–4.939 | 0.816 |
III | 0.597 | 0.138–2.584 | 0.490 |
IV | 0.973 | 0.186–5.085 | 0.974 |
EuroSCORE > 6 | 2.142 | 1.225–3.743 | 0.008 |
Preoperative LVEF > 33% | 1.378 | 0.744–2.552 | 0.308 |
Preoperative acute myocardial infarction | 0.713 | 0.192–2.641 | 0.612 |
Preoperative atrial fibrillation | 1.399 | 0.763–2.566 | 0.278 |
Preoperative COPD | 1.062 | 0.457–2.468 | 0.899 |
Smoking | 2.146 | 1.034–4.451 | 0.040 |
Excessive alcohol | 1.170 | 0.504–2.714 | 0.715 |
Type of cardiac surgery | |||
CABG | Reference | ||
AVR | 0.307 | 0.043–2.202 | 0.240 |
MVR | 0.169 | 0.035–0.815 | 0.027 |
AVR + MVR | 0.284 | 0.063–1.273 | 0.100 |
David/Wheats/Bentall procedure | 0.864 | 0.191–3.910 | 0.850 |
CABG +ventricular aneurysmectomy | 5.683 | 2.474–13.054 | < 0.001 |
CABG + valvular surgery | 4.314 | 1.260–14.773 | 0.020 |
CPB > 216 min | 8.004 | 3.372–18.997 | < 0.001 |
ACC > 163 min | 0.541 | 0.227–1.289 | 0.166 |
Intraoperative bleeding > 1.2 L | 0.963 | 0.545–1.700 | 0.896 |
CRRT | 1.190 | 0.445–3.186 | 0.729 |
Sepsis | 0.742 | 0.198–2.785 | 0.659 |
IABP use | 30.935 | 10.328–92.661 | < 0.001 |
MV time > 23 h | 0.985 | 0.576–1.684 | 0.956 |
Always use β-blocker | 2.056 | 1.236–3.420 | 0.005 |