Parameters | Overall population (n = 33) | Fluid non-responders (n = 18) | Fluid responders (n = 15) | p |
---|---|---|---|---|
Norepinephrine administration | 28 (85%) | 17 (94%) | 11 (73%) | 0.15 |
Norepinephrine dose (μg.kg-1.min-1) | 0.98 (0.41–1.50) | 0.68 (0.35–1.04) | 1.32 (0.71–1.97) | 0.12 |
Dobutamine administration | 7 (21%) | 4 (22%) | 3 (20%) | 1 |
Dobutamine dose (μg.kg-1.min-1) | 10.0 (7.5–14.8) | 11.4 (8.8–13.8) | 10.0 (5.2–14.9) | 0.86 |
Heart rate (min-1) | 100 (93–115) | 102 (92–117) | 100 (93–112) | 0.69 |
MAP (mm Hg) | 69 (64–72) | 67 (62–71) | 70 (68–72) | 0.14 |
PPV (%)a | 7 (5–10) | 7 (5–8) | 7 (5–11) | 0.92 |
CVP (mm Hg) | 7 (5–11) | 7 (5–10) | 7 (4–11) | 0.93 |
CITPTD (L.min-1.m-2) | 2.75 (2.06–3.50) | 2.94 (2.26–3.50) | 2.70 (2.04–3.04) | 0.48 |
GEDVI (ml.m-2) | 701 (587–854) | 697 (586–866) | 701 (614–773) | 0.89 |
ELWI (ml.kg-1 PBW) | 14.6 (11.8–20.4) | 15.8 (12.6–20.9) | 13.7 (10.1–18.3) | 0.23 |
Global ejection fraction (%) | 16 (13–18) | 16 (14–20) | 16 (13–17) | 0.66 |
Respiratory rate (min-1) | 30 (28–35) | 30 (28–35) | 30 (28–35) | 0.84 |
Heart rate/respiratory rate ≤3.6 | 20 (61%) | 10 (56%) | 10 (67%) | 0.72 |
Tidal volume (ml.kg-1 PBW) | 6.0 (5.9–6.1) | 6.0 (6.0–6.1) | 6.0 (5.9–6.0) | 0.31 |
PEEP (cm H2O) | 8 (5–10) | 8 (6–10) | 8 (6–10) | 0.67 |
PEEPt,rs (cm H2O) | 9 (8–11) | 9 (8–11) | 10 (8–12) | 0.83 |
Pplat,rs (cm H2O) | 22 (20–27) | 22 (20–28) | 22 (18–26) | 0.54 |
Driving pressure (cm H2O) | 12 (10–15) | 13 (10–18) | 11 (9–14) | 0.23 |
Cst,rs (mL.cm H2O-1) | 30 (23–39) | 28 (21–38) | 31 (25–43) | 0.26 |
pH | 7.33 (7.27–7.38) | 7.31 (7.27–7.36) | 7.38 (7.28–7.42) | 0.20 |
PaO2/FiO2 (Torr) | 158 (120–208) | 155 (120–167) | 207 (109–241) | 0.17 |
PaCO2 (Torr) | 41 (38–51) | 46 (41–52) | 38 (36–44) | 0.06 |
Arterial lactate (mmol.L-1) | 2.5 (1.9–6.4) | 2.5 (1.9–6.3) | 2.5 (1.8–5.8) | 0.94 |