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Table 4 Effects of different inspiratory patterns on EIF, MDT, and lnMDT

From: Dead space and CO2 elimination related to pattern of inspiratory gas delivery in ARDS patients

  TI 33%, TP 10% TI 15%, TP 28% TI 15%, TP 35%
SHAPE Increasing flow Constant flow Decreasing flow Increasing flow Constant flow Decreasing flow Increasing flow Constant flow Decreasing flow
EIF, ml/s 1,106 553 0 2,433 1,217 0 2,433 1,217 0
MDT 0.41 0.52 0.71 0.80 0.86 0.95 0.99 1.05 1.14
lnMDT -0.90 -0.66 -0.34 -0.22 -0.15 -0.05 -0.01 0.05 0.13
ΔVTCO2%, all subjects 1 2 4 17 12 8 20 15 10
ΔVTCO2%, subject 4 5 2 1 34 19 6 37 23 9
  1. Effects on ΔVTCO2 were calculated by using mean coefficients a and b for all subjects (Eq. 1) and coefficients for subject 4 who had a high coefficient b.