Skip to main content
Figure 3 | Critical Care

Figure 3

From: Detection of ‘best’ positive end-expiratory pressure derived from electrical impedance tomography parameters during a decremental positive end-expiratory pressure trial

Figure 3

Changes in partial arterial oxygen pressure (PaO 2 )/inspired oxygen fraction (FiO 2 ) ratio and dynamic compliance during a decremental positive end-expiratory pressure (PEEP) trial. (A) The PaO2/FiO2 ratio (mmHg) and (B) dynamic compliance (mL/cm H2O) are shown for the entire group. The PaO2/FiO2 ratio decreased with every PEEP step. The PaO2/FiO2 ratio showed a significant decrease at 5 and 0 cm H2O PEEP compared with 15 cm H2O PEEP. Dynamic compliance increased after reducing PEEP from 15 to 10 cm H2O. Thereafter, dynamic compliance decreased with each PEEP step. At 0 cm H2O PEEP dynamic compliance was significantly reduced compared with 15 cm H2O PEEP. Solid squares = PaO2/FiO2 ratio; solid diamonds = dynamic compliance. *P <0.05.

Back to article page

Critical Care

ISSN: 1364-8535