Table 2.
Hemodynamic data and oxygenation parameters.
| All | RDRI > 0.7 | RDRI ≤ 0.7 | P | |
|---|---|---|---|---|
| Heart rate (bpm) | 86 ± 12 | 94 ± 13 | 84 ± 12 | 0.028 |
| MAP (mmHg) | 76 ± 10 | 77 ± 10 | 76 ± 10 | 0.708 |
| MPAP (mmHg) | 24 ± 5 | 24 ± 4 | 24 ± 5 | 0.601 |
| CI (L/min/m2) | 2.7 ± 0.6 | 2.5 ± 0.8 | 2.7 ± 0.6 | 0.466 |
| LVSWI (Joule) | 25 ± 8 | 24 ± 10 | 26 ± 7 | 0.412 |
| CVP (mmHg) | 12 ± 3 | 11 ± 4 | 12 ± 3 | 0.864 |
| PCP (mmHg) | 14 ± 5 | 14 ± 5 | 15 ± 5 | 0.523 |
| SVRI (dynes s/cm5/m2) | 2044 ± 558 | 2191 ± 687 | 2001 ± 517 | 0.434 |
| PVRI (dynes s/cm5/m2) | 300 ± 160 | 373 ± 205 | 277 ± 140 | 0.189 |
| Hemoglobin (g/dL) | 11 ± 2 | 11 ± 2 | 11 ± 2 | 0.539 |
| Lactate concentration (mmol/L) | 1.5 ± 1 | 1.5 ± 0.4 | 1.5 ± 0.9 | 0.925 |
| SaO2 (%) | 98 ± 2 | 97 ± 2 | 99 ± 2 | 0.033 |
| SvO2 (%) | 66 ± 6 | 57 ± 2 | 67 ± 6 | <0.001 |
| ΔCO2 (mmHg) | 5 ± 2 | 6 ± 2 | 5 ± 3 | 0.492 |
| DO2I (mL/m/m2) | 378 ± 93 | 355 ± 88 | 385 ± 94 | 0.361 |
| VO2I (mL/m/m2) | 128 ± 33 | 146 ± 40 | 122 ± 29 | 0.110 |
| O2ER (%) | 35 ± 0.07 | 41 ± 0.04 | 32 ± 0.06 | <0.001 |
| RDRI | 0.64 ± 0.06 | 0.74 ± 0.03 | 0.62 ± 0.04 | <0.001 |
MAP: mean artery pressure; MPAP: mean pulmonary artery pressure; CI: cardiac index; LVSWI: left ventricular stroke work index [(MAP(mmHg) − PCWP(mmHg)) × SVI(mL) × 0,0133322]; CVP: central venous pressure; PCP: pulmonary capillary pressure; SVRI: systemic vascular resistance index; PVRI: pulmonary vascular resistance index; SaO2: arterial oxygen saturation; SvO2: mixed venous oxygen saturation; ΔCO2: venoarterial CO2 gradient; DO2I: oxygen delivery index [CI × Hb × 1.34 × SaO2 + 0.003 × PaO2]; VO2I: oxygen consumption index [CI × Hb × 1.34 × SvO2 + 0.003 × PvO2]; O2ER: oxygen extraction ratio [VO2I/DO2I]; RDRI: renal Doppler resistive index; Hb: hemoglobin (gr/mL); PaO2: partial pressure of arterial oxygen (mmHg); PvO2: partial pressure of mixed venous oxygen (mmHg).