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Table 2 Rescue strategies for intraoperative hypoxemia

From: Protective intraoperative ventilation with higher versus lower levels of positive end-expiratory pressure in obese patients (PROBESE): study protocol for a randomized controlled trial

 

Lower PEEP

Higher PEEP

Step

FiO2

PEEP (cmH2O)

FiO2

PEEP (cmH2O)

1

0.5

4

 

0.4

14

(+RM)

2

0.6

4

 

0.4

16

(+RM)

3

0.7

4

 

0.4

18

(+RM)

4

0.8

4

 

0.5

18

 

5

0.9

4

 

0.6

18

 

6

1.0

4

 

0.7

18

 

7

1.0

5

 

0.8

18

 

8

1.0

6

 

0.9

18

 

9

1.0

7

(+RM)

1.0

18

 

10

   

1.0

20

(+RM)

  1. Abbreviations: FiO 2 Fraction of inspired oxygen, PEEP Positive end-expiratory pressure, RM Recruitment maneuver
  2. If intraoperative hypoxemia, defined as oxygen saturation ≤92%, develops, sequences of interventions will be used according to group assignment