Table 3 Ventilation parameters and points without and with CRS technique
Features | Mean (95% CI) | Mean difference (d = Ma – Mb) (95% CI) | p-value | |
|---|---|---|---|---|
Without CRS (Mb) | With CRS (Ma) | |||
VE (l/min) | 6.1 (5.8; 6.5) | 9.3 (8.9; 9.7) | 3.2 (2.6; 3.7) | < 0.001 |
Ppeak (cm H2O) | 18.2 (17.5; 18.8) | 19 (18; 20) | 0.7 (0.4; 1.0) | < 0.001 |
Pmean (cm H2O) | 7.9 (7.7; 8.1) | 6.7 (6.5; 6.9) | −1.2 (−1.4; −1.0) | < 0.001 |
SpO2 (%) | 98 (97; 99) | 99 (98; 100) | 1.0 (0.2; 1.5) | < 0.001 |
EtCO2 (mm Hg) | 36 (35; 37) | 42 (40; 43) | 6 (4; 7) | < 0.001 |
PaO2 (mm Hg) | 180 (170; 190) | 320 (300; 340) | 170 (160; 190) | < 0.001 |
PaCO2 (mm Hg) | 39 (38; 40) | 43 (41; 45) | 4.0 (0.4; 7.6) | < 0.001 |
FiSev (vol%) | 2.2 (2.1; 2.3) | 7.3 (7.0; 7.6) | 5.1 (4.9; 5.3) | < 0.001 |
EtSev (vol%) | 1.8 (1.7; 2.0) | 1.0 (0.9; 1.1) | −0.8 (−0.9; −0.7) | < 0.001 |
MAC | 0.91 (0.87; 0.95) | 0.52 (0.48; 0.56) | −0.39 (−0.44; −0.34) | < 0.001 |
BIS | 44 (42; 47) | 53 (49; 56) | 9 (5; 13) | < 0.001 |
Points | 2.3 (2.1; 2.6) | 3.8 (3.7; 4.0) | 1.6 (1.3; 1.8) | < 0.001 |