Skip to main content
Figure 3 | Critical Care

Figure 3

From: Alveolar recruitment can be predicted from airway pressure-lung volume loops: an experimental study in a porcine acute lung injury model

Figure 3

Relation between MH/TLC and lung mechanics or blood gas tensions. (a) Relation between the ratio between maximal volume hysteresis and total lung capacity (MH/TLC) and the relative changes at 10 cmH2O of positive end-expiratory pressure (PEEP) in EELV, (b) respiratory compliance, (c) partial pressure of arterial CO2 (PaCO2), and (d) partial pressure of arterial oxygen (PaO2) by a lung recruitment maneuver (LRM) in the three lung models. The regression lines are shown. The symbols depict the individual animals: filled circles, before lung lavage; open circles, after lung lavage; filled triangles, after lung lavage and additional injurious ventilation. ΔEELV/EELV 10PEEPnoLRM, the ratio between the change in end-expiratory lung volume associated with LRM and the end-expiratory lung volume at 10 cmH2O PEEP before LRM; ΔCrs/Crs 10PEEPnoLRM, the ratio between the change in compliance of the respiratory system associated with LRM and the compliance of the respiratory system at 10 cmH2O PEEP before an LRM; ΔPaCO2/PaCO2 10PEEPnoLRM, the ratio between the change in PaCO2 associated with LRM and PaCO2 at 10 cmH2O PEEP before an LRM; ΔPaO2/PaO2 10PEEPnoLRM, the ratio between the change in PaO2 associated with LRM and PaO2 at 10 cmH2O PEEP before an LRM.

Back to article page

Critical Care

ISSN: 1364-8535