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Table 2 Ventilatory parameters and respiratory system mechanics of children under general anesthesia with ZEEP and PEEP of 5 cmH2O

From: Positive end-expiratory pressure improves elastic working pressure in anesthetized children

 

ZEEP (n = 30)

PEEP 5 (n = 30)

P value

MEDIAN

P25, P75

MEDIAN

P25, P75

 

FiO2

0.40

0.36, 0.50

0.40

0.36, 0.50

1.000

VTE

6.79

6.18, 7.36

6.53

5.97, 7.20

0.290

RR

24

21, 26

24

21, 26

1.0

IT

0.85

0.72, 1.02

0.85

0.72, 1.03

1.00

PIP

12

11, 14

15.5

14.0, 18.5

< 0.01

PPL

7.9

7.2, 9.18

10.95

9.7, 12.6

< 0.01

Paw

4.1

3.6, 4.9

8.5

7.9, 9.8

< 0.01

QI

11

8.1, 13.1

11

8.1, 13.1

0.317

QE

13.8

11.8, 13.1

11.7

9.1, 13.5

< 0.01

RawI

25.7

18.6, 34.3

26.4

20.1, 33.1

0.447

RawE

28.9

21.9, 39.4

29.3

22.3, 42.1

0.629

CRS

0.96

0.89, 1.22

1.19

0.94, 1.39

< 0.01

KTI

0.36

0.31, 0.48

0.45

0.38, 0.59

0.004

  1. ZEEP PEEP 0 cmH2O, FiO2 fraction of inspired oxygen, VTE expiratory tidal volume (mL·kg−1), RR respiratory rate (breath per minute), IT inspiratory time (s), PIP peak inspiratory pressure (cmH2O), PPL plateau pressure (cmH2O), Paw mean airway pressure (cmH2O), QI peak inspiratory flow (L·min− 1), QE peak expiratory flow, (L·min− 1), RawI inspiratory airway resistance (cmH2O·L− 1·s− 1), RawE expiratory airway resistance (cmH2O·L− 1·s− 1), CRS static respiratory system compliance (mL·cmH2O− 1·kg− 1), KTI inspiratory time constant (s)
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BMC Anesthesiology

ISSN: 1471-2253

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