The Effect of Fluid Overload on Attributable Morbidity after Cardiac Surgery: A Retrospective Study
Table 4
Multivariate analyses.
Multivariate analysis
OR (95% CI)
value
Prolonged mechanical ventilation (>4.9 hours)
Quartiles of total fluid balance (Q)
Q2
1.449 (0.813–2.585)
0.209
Q3
1.690 (0.956–2.987)
0.071
Q4
4.938 (2.901–8.403)
<0.001
Additive EuroSCORE
1.090 (1.027–1.157)
0.005
ACC (min)
1.006 (1.002–1.010)
0.003
Use of noradrenaline
1.616 (1.016–2.571)
0.043
Prolonged LOS in ICU (≥2 days)
Quartiles of total fluid balance (Q)
Q2
0.955 (0.460–1.982)
0.901
Q3
3.284 (1.728–6.243)
<0.001
Q4
11.31 (6.12–20.96)
<0.001
Additive EuroSCORE
1.172 (1.097–1.252)
<0.001
ACC (min)
1.009 (1.005–1.014)
<0.001
Use of noradrenaline
2.247 (1.403–3.599)
0.001
LOS, length of stay; AKI, acute kidney injury; EuroSCORE, European System for Cardiac Operative Risk Evaluation; ACC, aortic cross clamp; ICU, intensive care unit. The first quartile (Q1) of total fluid balance served as the reference value.