Table 3 Data of respiratory mechanics at day 1 and day 3 after ICU admission
From: Expiratory flow limitation in intensive care: prevalence and risk factors
Variables | Day 1 | Day 3 | ||||
|---|---|---|---|---|---|---|
NO EFL (n = 84) | EFL (n = 37) | p value | NO EFL (n = 63) | EFL (n = 58) | p value | |
Cst,rs, ml/cmH2O | 49 [40–64] | 47 [38–56] | 0.309 | 48 [39–61] | 52 [39–56] | 0.652 |
Rrs,max, cmH2O/l/s | 16 [13–21] | 22 [17–26] | < 0.0001 | 17 [15–20] | 21 [17–27] | 0.031 |
Rrs,min, cmH2O/l/s | 8 [6–12] | 9 [7–13] | 0.269 | 9 [7–13] | 9 [7–14] | 0.825 |
ΔRrs, cmH2O/l/s | 7 [5–10] | 10 [6–14] | 0.001 | 7 [5–10] | 11 [6–14] | 0.008 |
P/F ratio | 257 [177–370] | 168 [123–260] | 0.003 | 230 [170–329] | 183 [134–265] | < 0.0001 |
PEEPi, cmH2O | 2 [1–2] | 7 [4–10] | < 0.0001 | 1 [0–2] | 6 [4–9] | < 0.0001 |
PEEPappl, cmH2O | 7 [6–8] | 10 [8–12] | < 0.0001 | 8 [6–10] | 10 [8–12] | < 0.0001 |
RR, breaths/min | 15 [14–18] | 15 [14–16] | 0.839 | 15 [14–17] | 16 [15–20] | 0.065 |
VT, ml/kg IBW | 7.3 [6.7–7.3] | 8.0 [7.0–8.9] | 0.098 | 7.2 [6.4–8.0] | 7.3 [6.1–7.9] | 0.673 |
Ppeak, cmH2O | 20 [17–24] | 27 [24–31] | < 0.0001 | 21 [17–25] | 29 [22–33] | < 0.0001 |
Pplat, cmH2O | 17 [15–19] | 19 [16–18] | 0.009 | 17 [15–20] | 19 [15–21] | 0.227 |
ΔP, cmH2O | 9 [8–12] | 11 [8–13] | 0.268 | 9 [8–12] | 9 [7–12] | 0.741 |