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Table 2 Effect of PEEP on IAP in human studies

From: Positive end-expiratory pressure affects the value of intra-abdominal pressure in acute lung injury/acute respiratory distress syndrome patients: a pilot study

 

Sussman and colleagues[8]

Gattinoni and colleagues[7]

Torquato and colleagues[9]

Present study

Publication year

1991

1998

2009

2009

Patients (n)

15

21

30

30

IAP zero reference

SP

SP

SP

MA

IAP volume (ml)

50

100

60

50

PEEP baseline (cmH2O)

0

0

0

0

PEEP set (cmH2O)

15

15

10

12

ΔPEEP (cmH2O)

15

15

10

12

ΔPEEP (mmHg)

11

11

7.4

8.8

IAP at baseline (mmHg)

10.8

10.6 ± 6

8.7 ± 4.5

11.7 ± 4.5

IAP at PEEP (mmHg)

11.7

11.8 ± 6.3

12.3 ± 9.6

15.2 ± 5.8

ΔIAP (mmHg)

0.9

1.4 ± 1.3

3.6 ± 2.6

3.5 ± 1.7

  1. Continuous data are reported as mean ± standard deviation.
  2. ΔPEEP = difference between the two extreme PEEP levels.
  3. ΔIAP = IAP recorded at PEEP minus IAP at baseline.
  4. IAP, intra-abdominal pressure; MA, midaxillary line; PEEP, positive end-expiratory pressure; SP, symphysis pubis.