with increased duration of exposure to hyperoxia , there was a progressive increase in pulmonary inflammation , with thickening of alveolar membranes and atelectasis and a progressive increase in lung permeability indices ( 0.434 +/- 0.088 at 24 hrs ; 0.954 +/- 0.165 at 48 hrs ; and 1.55 +/- 0.214 at 60 hrs ) ;
C0004144
atelectasis
C0024109
lung