Peak inspiratory pressure.

<p>The figure shows the results of animals in Groups 2H (ventilated for 2 hours) and 4H (ventilated for 4 hours). <b>A.</b> Evolution of peak inspiratory pressure in relation to time. <b>B.</b> Graphic representation of mean peak inspiratory pressure in Groups 2H and 4H. Error bars represent standard deviation. Group 2H = Rats ventilated with 10 ml/Kg tidal volume for 2 hours; Group 4H = Rats ventilated with 10 ml/Kg tidal volume for 4 hours. ^* p<0.05 in relation to baseline of Group 2H. * p<0.05 in relation to baseline of Group 4H. # p<0.05 in relation to Group 2H.