Table 2. Presence of abnormal hypoxia markers in patients with abnormal perfusion markers.
| Abnormal parameter | Abnormal ΔPCO2/Ca–vO2 | Abnormal LPR | P |
|---|---|---|---|
| Lactate >2 mmol/L | 69% (58/84) | 15% (13/87) | 0.0001 |
| ScvO2 <70% | 55% (33/60) | 5% (3/56) | 0.0001 |
| CRT >3 s | 64% (35/55) | 22% (12/53) | 0.0001 |
| Delta pCO2(v-a) >6 mmHg | 85% (41/48) | 16% (7/45) | 0.0001 |
| StO2 <70% | 62% (13/21) | 0% (0/24) | 0.0001 |
| PDR <18% | 78% (35/45) | 12% (6/51) | 0.0001 |
| MFI <2.5 | 85% (6/7) | 42% (3/7) | 0.26 |
ΔPCO2/Ca–vO2, ratio between veno–arterial PCO2 difference and Ca–vO2; LPR, Lactate/pyruvate ratio; CRT, Capillary refill time; ScvO2, central venous oxygen saturation Delta pCO2(v-a), difference between central venous carbon dioxide pressure and arterial carbon dioxide pressure; StO2, Tissue oxygen saturation; PDR-ICG, liver blood flow by Indocyanine green plasma disappearance rate; MFI, mean flow index.