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Table 3. Ventilatory Parameters over the Course of the Experiment

* Pplat (P < 0.0006), pH (P < 0.001), and VDS/VT(P < 0.0008) had a significant group versus  time interactions.

P < 0.05 versus  control.

P < 0.05 versus  post-RM.

§P < 0.05 versus  30 min.

P < 0.05 versus  60 min.

RM = recruitment maneuver; Pplat = plateau pressure; Pao2= arterial oxygen tension; VD/VT= volume of dead space/tidal volume ratio; PMC= positive end-expiratory pressure (PEEP) set at the point of maximum curvature; Pflex= PEEP set at the lower inflection point + 2 cm H2O.

Table 3. Ventilatory Parameters over the Course of the Experiment
Table 3. Ventilatory Parameters over the Course of the Experiment
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