Table 1 Patient characteristics (n = 72)

Age (mean ± SD, years)

64 ± 13

Gender (male, n (%))

56 (77%)

Weight (mean ± SD, kg)

72 ± 16

Height (mean ± SD, cm)

168 ± 10

SAPS II (mean ± SD)

60 ± 20

 Septic

51 (70%)

 Cardiogenic

12 (17%)

 Hypovolemic

9 (13%)

 Norepinephrine (n (%))

52 (72%)

 Dose of norepinephrine (median [interquartile range], μg/kg/min)

0.5 [0.1–0.6]

 Dobutamine (n (%))

8 (11%)

 Dose of dobutamine (median [interquartile range], μg/kg/min)

16 [14–20]

 Mechanical ventilation (n (%))

56 (78%)

 Tidal volume (mean ± SD, mL/kg of PBW)

5.8 ± 1.4

 Plateau pressure (mean ± SD, cmH₂O)

23.5 ± 3.8

 Positive end-expiratory pressure (mean ± SD, cmH₂O)

9.8 ± 3.5