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Table 2 Intrapleural and airway pressure during sequential CPR interventions

From: Effect of regulating airway pressure on intrathoracic pressure and vital organ perfusion pressure during cardiopulmonary resuscitation: a non-randomized interventional cross-over study

 

STD

ACD

ACD-ITD

ACD-ITPR

Ppl mean

0.8 ± 1.1

−1.6 ± 1.6

−3.7 ± 1.5*,**

−7.0 ± 1.9*,**,***

Ppl max

6.8 ± 0.9

9.4 ± 1.3

8.4 ± 1.2

5.9 ± 1.8**

Ppl min

−6.3 ± 2.2

−13.0 ± 3.8*

−16.9 ± 3.6*,**

−18.7 ± 3.5*,**

Ppl delta

13.1 ± 2.2

22.5 ± 3.5*

26.2 ± 4*

24.6 ± 3.3*

Paw mean

0.3 ± 0.3

0.3 ± 0.3

−2.0 ± 0.6*,**

−8.4 ± 1.0*,**,***

Paw max

1.4 ± 0.3

2.2 ± 0.4

3.3 ± 1.1

−5.1 ± 1.4*,**,***

Paw min

−0.9 ± 0.3

−1.4 ± 0.3

−9.4 ± 0.8*,**

−11.9 ± 0.8*,**,***

Paw delta

2.3 ± 0.3

3.6 ± 0.4

12.6 ± 1.1*,**

6.4 ± 1.4*,**,***

  1. Values are shown as mean ± SEM (mm Hg). All pressures are in mm Hg. Data are derived from 8 animals
  2. CPR cardiopulmonary resuscitation, STD standard, ACD active compression decompression, ITD impedance threshold device, ITPR intrathoracic pressure regulator, Ppl intrapleural pressure, Paw Airway pressure; max, maximum (compression); min, minimum (decompression)
  3. *denotes p < 0.05 for STD vs. (ACD, ACD ITD, ACD ITPR)
  4. **denotes p < 0.05 for ACD vs. (ACD ITD, ACD ITPR)
  5. ***denotes p < 0.05 for ACD-ITD vs. ACD-ITPR