Lung Strain Indices
RECRUITMENT
Respiratory system compliance and aerated lung volume (FRC + recruitment) were linearly correlated at PEEP 5 cm HThe reduction dynamic and total strain and the increase in static strain produced by the 10–cm HRelationship between the PEEP-induced percent change in dynamic strain, static strain, and total strain, and the corresponding recruitment-to-inflation ratio measured between 5 and 15 cm HAlso, reduction in dynamic and total strain and the increase in static strain produced by narrower PEEP levels tested in the decremental PEEP trial were closely related to the corresponding recruitment-to-inflation ratio measured (dynamic strain, r = –0.89; static strain, r = –0.36; total strain, r = –0.84; fig. Changes in respiratory system compliance, driving pressure, and Pa