Table 3 Intraoperative Ventilatory management

Two-lung ventilation

   Tidal volume (ml/kg predicted body weight)

9.2 (2.8)

6.5 (2.0)*

   Patients with tidal volume < 8 ml/kg (%)

24

92 *

   Inspiratory plateau pressure (cmH₂O)

16 (5)

12 (4)*

   Positive end-expiratory pressure (cmH₂O)

3 (2)

3 (3)

   Dynamic compliance (ml/cmH₂O)

52.4 (9.1)

53.5 (8.7)

   Inspiratory oxygen fraction (%)

40 (4)

38 (13)

   Respiratory rate (cycle/minute)

11 (1)

14 (2)*

One-lung ventilation

   Tidal volume (ml/kg predicted body weight)

7.1 (1.2)

5.3 (1.1)*

   Inspiratory plateau pressure (cmH₂O)

20 (7)

15 (6)*

   Positive end-expiratory pressure (cmH₂O)

3.3 (2.1)

6.2 (2.4)*

   Dynamic compliance (ml/cmH₂O)

32.2 (7.5)

44.6 (6.9)*

   Inspiratory oxygen fraction (%)

64 (9)

67 (8)

   Respiratory rate (cycle/minute)

13 (2)

15 (2)*