Table 1 Patients’ demographics and clinical characteristics

Patients’ characteristics (n = 16)

Age yr

57 ± 16

Sex (M/F)

13/3

BMI Kg/m²

25 ± 4

Etiology n (%)

Pneumonia

9 (56)

Extrapulmonary infection

5 (31)

Pulmonary embolism

1 (6)

Alveolar hemorrhage

1 (6)

Baseline parameters (n = 20)

PH

7.4 ± 0.1

Na + mmol/L

142 ± 5

Cl- mmol/L

105 ± 7

HCO₃- mmol/L

22 ± 4

PaO₂/FiO₂ mmHg

210 ± 79

APACHE II Score

18 ± 5

VT ml

388 ± 56

PEEP cmH₂O

7 ± 2

FiO₂%

68 ± 28