Table 2.
Renal blood flow evaluation and respiratory mechanics in patients with C-ARDS and ARDS
| Variables | SARS-CoV-2 ARDS n = 15 | ARDS n = 15 |
P value |
|---|---|---|---|
| Renal blood flow evaluation | |||
| Renal resistivity index | 0.71 [0.67–0.78] | 0.64 [0.60–0.74] | 0.04 |
| Renal venous flow pattern | |||
| Continuous | 6 (40) | 10 (66) | 0.27 |
| Biphasic | 4 (27) | 3 (20) | 0.99 |
| Monophasic | 5 (33) | 2 (14) | 0.40 |
| Respiratory mechanics | |||
| Tidal volume (mL) | 440 [400–480] | 395 [350–480] | 0.27 |
| Respiratory rate | 18 [18–22] | 18 [16–20] | 0.14 |
| Minute ventilation (L/m) | 7.9 [7.2–9.0] | 7.4 [6.0–8.6] | 0.10 |
| Plateau pressure (cm H2O) | 22 [22–24] | 21 [18–24] | 0.11 |
| PEEP (cm H2O) | 14 [12–14] | 10 [10–12] | 0.004 |
| Driving pressure (cm H2O) | 10 [8–10] | 9 [8–12] | 0.90 |
| Static compliance (ml/cm H2O) | 45 [41–52] | 40 [37–47] | 0.03 |
| Hemodynamic parameters | |||
| Mean arterial pressure (mmHg) | 75 [70–80] | 82 [67–91] | 0.21 |
| Heart rate | 90 [86–104] | 89 [79–95] | 0.84 |
| Blood gas analysis | |||
| PaO2/FiO2 (mmHg) | 118 [94–151] | 193 [148–209] | 0.001 |
| PaCO2 (mmHg) | 57 [48–64] | 46 [36–52] | 0.02 |
| Lactate (mmol/L) | 1.2 [1.2–1.6] | 2.2 [1.1–3.2] | 0.13 |
SARS-CoV-2 ARDS Coronavirus-induced ARDS; PEEP positive end-expiratory pressure, PaCO2 arterial carbon dioxide tension