Figure 1.

Comparison of two ventilation patterns applied in preterm lambs. (A) Probability distribution functions of variable ventilations (VV) in which the maximum tidal volume was 1.5 times the mean tidal volume (V_T) (VV1, black) or 2.25 times the mean V_T (VV2, red). Notice that the tail of the distribution in VV2 is longer than that of VV1 which means that VV2 occasionally includes much larger V_T than VV1 even though the mean in both cases was 8 mL/kg. (B,C) Realizations of the time series of VV1 and VV2, respectively, showing 50 consecutive V_T's. The solid line represents conventional ventilation (CV).