Table 1 Baseline characteristics of the study population patients, ventilation settings, blood gas exchange and hemodynamic
From: Clinical performance of lung ultrasound in predicting ARDS morphology
Variables | Overall (N = 47) | Training set (N = 25) | Validation set (N = 22) |
|---|---|---|---|
Age (years) | 52 (44–63) | 57 (50–65) | 48 (41–58) |
PBW (kg) | 64 (57–71) | 65 (57–71) | 64 (58–70) |
Gender (M/F) | 31/16 | 17/8 | 14/8 |
Risk factors for ARDS—N (%) | |||
Pneumonia | 42 (89) | 24 (85) | 21 (96) |
Non-pulmonary sepsis | 2 (4) | 2 (7) | 0 (0) |
Pancreatitis | 3 (6) | 2 (7) | 1 (4) |
SAPS II score | 36 (29–45) | 34 (27–44) | 39 (29–47) |
SOFA score | 8 (7–11) | 8 (7–11) | 9 (7–11) |
TV/PBW (mL/kg) | 6.6 (5.9–7.8) | 6.9 (6.0–7.9) | 6.4 (5.8–7.5) |
PEEPtot (cmH2O) | 14 (11–15) | 13 (10–15) | 14 (12–16) |
Pplat (cmH2O) | 25 (23–27) | 25 (23–27) | 25 (20–26) |
FiO2 | 0.6 (0.5–0.8) | 0.6 (0.5–0.8) | 0.5 (0.45–0.7) |
Blood gas exchange | |||
pH | 7.41 (7.35–7.46) | 7.41 (7.35–7.45) | 7.39 (7.35–7.46) |
PaO2/FiO2 | 166 (109–232) | 156 (108–233) | 178 (114–240) |
PaCO2 | 48 (41–52) | 48 (41–52) | 48 (42–50) |
Lactate | 1.7 (1.3–2.2) | 1.7 (1.3–2.6) | 1.6 (1.2–1.8) |
MAP (mmHg) | 83 (75–89) | 82 (73–88) | 84 (77–94) |
HR (bpm) | 89 (77–98) | 91 (81–98) | 86 (77–100) |