Table 3 Univariate analysis of postoperative hemodynamic and laboratory variables
Variable | Standard stay group (n = 62) | Prolonged stay group (n = 23) | P |
|---|---|---|---|
pH on POD 1 | 7.360 ± 0.008 | 7.342 ± 0.015 | 0.255 |
PaO2on POD 1 (mmHg) | 183.2 ± 10.55 | 237.07 ± 19.75 | 0.012 |
HB in POD 1 (g/L) | 110.14 ± 2.28 | 106.83 ± 4.36 | 0.471 |
Lactate on POD 1 (mmol/L) | 2.70 (1.88–4.43) | 4.10 (3.20–5.10) | 0.011 |
Blood calcium on POD 1 (mmol/L) | 1.33 (1.23–1.44) | 1.18 (1.12–1.35) | 0.007 |
Volume of chest drainage over 24 h after surgery (ml/kg) | 12.98 (8.31–18.76) | 17.86 (11.70-26.79) | 0.016 |
RBC infusion (u/kg) | 0.46 (0.29–0.67) | 1.33 (0.76–1.47) | < 0.001 |
FFP infusion (ml/kg) | 69.09 ± 4.13 | 142.18 ± 13.83 | < 0.001 |
IVS (mm) | |||
POD 1 | 14.11 ± 1.26 | 22.21 ± 2.38 | 0.002 |
POD 2 | 10.35 ± 1.09 | 20.78 ± 2.66 | 0.001 |
POD 3 | 6.65 (0.58–11.75) | 16.30 (12.40–24.70) | < 0.001 |
LVEF(%) | |||
POD 1 | 67.15 ± 1.85 | 65.60 ± 3.36 | 0.663 |
POD 2 | 67.72 ± 1.42 | 66.50 ± 5.98 | 0.854 |
POD 3 | 66.70 ± 2.77 | 68.57 ± 0.97 | 0.537 |
CK-MB on POD 1 (U/L) | 75.00 (60.50–93.50) | 81.50 (58.50-114.75) | 0.549 |
MAP(mmHg) | |||
24 h after surgery | 65.85 ± 1.08 | 63.70 ± 1.79 | 0.303 |
48 h after surgery | 67.84 ± 0.85 | 62.13 ± 1.81 | 0.002 |
72 h after surgery | 67.65 ± 0.90 | 65.17 ± 1.67 | 0.171 |
Arrhythmias (n/%) | 46 (70.7%) | 21 (91.3%) | 0.047 |
Duration of mechanical ventilation (hours) | 25 (22–47) | 117(58–163) | < 0.001 |
Pneumonia (n/%) | 52 (80.0%) | 22 (95.6%) | 0.283 |
Pneumonic consolidation (n/%) | 6 (9.2%) | 1 (4.3%) | 0.726 |
Pneumothorax (n/%) | 15 (23.1%) | 7 (30.4%) | 0.559 |
Renal function | |||
Cystatin C (mg/L) | 1.22 (0.97–1.48) | 1.25 (1.05–1.35) | 0.847 |
Peritoneal dialysis (n/%) | 2 (3.1%) | 1 (4.3%) | 1.000 |
Liver function | |||
ALT (U/L) | 17.00 (12.75-23.00) | 13.00 (8.00–19.00) | 0.130 |
TBIL (mmol/L) | 34.60 (18.93–91.20) | 98.60 (35.00-129.10) | 0.011 |
DBIL (mmol/L) | 9.95 (5.95–12.40) | 11.80 (9.50–16.10) | 0.021 |
Coagulation function | |||
PT (s) | 13.80 (12.48–16.13) | 14.30 (13.00-16.60) | 0.392 |
APTT (s) | 39.30 (32.45–43.38) | 50.80 (37.50–59.10) | 0.005 |
INR | 1.19 (1.08–1.36) | 1.19 (1.06–1.36) | 0.74 |