Variables | Patients with postoperative complications | Patients without postoperative complications | P value |
---|---|---|---|
(n = 78) | (n = 37) | ||
Severity scores | Â | Â | Â |
ASA class | 3.0 (2.0-3.0) | 3.0 (2.0-3.0) | 0.16 |
 ASA class ≥3 (%) | 51 (65) | 19 (51) | 0.150 |
SOFA | 7.0 (3.0-12.0) | 1.0 (1.0-2.5) | <0.001 |
SAPS II | 23.0 (16.5-31.2) | 15.5 (12.0-24.2) | 0.008 |
High-risk criteria (%) | Â | Â | Â |
Age, years | 64 ± 13 | 65 ± 10 | 0.84 |
Age ≥70 years | 30 (38) | 12 (32) | 0.53 |
Severe nutritional problems | 8 (10) | 3 (8) | 1.00 |
Previous respiratory illness | 20 (26) | 4 (11) | 0.07 |
Chronic renal failure | 5 (6) | 1 (3) | 0.66 |
Chronic liver failure | 6 (8) | 1 (3) | 0.43 |
Ischemic heart disease | 32 (41) | 19 (51) | 0.30 |
Malignant neoplasia | 46 (59) | 21 (57) | 0.82 |
Major abdominal surgery | 52 (67) | 30 (81) | 0.11 |
Prolonged surgery ≥8 hours | 6 (8) | 3 (8) | 1.00 |
Urgent surgery | 19 (24) | 3 (8) | 0.04 |
Septic surgery | 19 (24) | 5 (13) | 0.18 |
Vascular clamping ≥1 hour | 4 (5) | 0 (0) | 0.30 |
Physiological parameters | Â | Â | Â |
Mean arterial pressure, mmHg | 82 ± 16 | 85 ± 14 | 0.30 |
Urine output, ml/3 hours | 266 ± 228 | 345 ± 258 | 0.023 |
Biologic parameters | Â | Â | Â |
 Serum lactate, mmol/l | 1.54(1.1-3.2) | 1.06 ± (0.8-1.8) | 0.006 |
 Serum bicarbonate, mmol/l | 19.6 ± 4.2 | 21.4 ± 2.7 | 0.008 |
 Hemoglobin, g/dl | 10.4 ± 1.8 | 10.8 ± 1.7 | 0.39 |
 Troponin I, ng/ml | 0.03 (0.01-0.11) | 0.01 (0.00-0.04) | 0.025 |
 Arterial pH | 7.33 ± 0.08 | 7.35 ± 0.07 | 0.47 |
 Venous pH | 7.28 ± 0.09 | 7.30 ± 0.06 | 0.06 |
 PCO2 gap, mmHg | 8.7 ± 2.8 | 5.1 ± 2.6 | <0.001 |
 PcvCO2, mmHg | 46.1 ± 6.7 | 45.9 ± 6.0 | 0.92 |
 PaCO2, mmHg | 37.4 ± 6.5 | 40.7 ± 6.2 | 0.09 |
 ScvO2, % | 76.3 ± 6.3 | 78.0 ± 5.2 | 0.17 |
 SaO2, % | 99.2 (98.4-99.5) | 98.8 (98.1-99.2) | 0.026 |
 PaO2, mmHg | 145 (116–175) | 135 (110–156) | 0.05 |
 PcvO2, mmHg | 46.0 (41.7-54.0) | 48,0 (40.5-52.0) | 0.77 |