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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