Table 1 Patients' characteristics.

Body mass index (kg/m²)

28 (7)

Body surface area (m²)

1.87 (0.27)

Age (years)

60 (14)

Sex (female)

8 (50%)

Main diagnosis at ICU admission:

   Pneumonia

5 (31%)

   Multiple trauma

3 (19%)

   Brain injury

2 (12%)

   Extrapulmonary sepsis

6 (38%)

Pulmonary ARDS

10 (63%)

Patients with vasoactive agents during the study

12 (75%)

Hemoglobin (g/dL)

9.9 (1.9)

PaO₂/F_IO₂ (mmHg)

192 (61)

Positive end-respiratory pressure (cmH₂O)

14 (3)

F_IO₂

0.64 (0.14)

Hospital survival

10 (63%)