Day / round number | Day 0 | Day 1 / 1 | Day 1 / 2 | Day 1 / 3 | Day 1 / 4 | Day 1 / 5 | Day 2 / 1 | Day 2 / 2 | Day 2 / 3 | Day 2 / 4 |
Mechanical ventilator modality | AC/VC | AC/VC | AC/VC | AC/VC | AC/VC | AC/VC | AC/VC | AC/VC | AC/VC | AC/VC |
Programmed respiratory frequency (breaths per minute) | 28 | 28 | 24 | 20 | 20 | 22 | 22 | 22 | 22 | 22 |
Total respiratory frequency (breaths per minute) | 29 | 28 | 24 | 20 | 20 | 22 | 22 | 22 | 22 | 22 |
Programmed tidal volume (ml) | 370 | 370 | 370 | 420 | 420 | 370 | 370 | 370 | 370 | 370 |
Expiratory tidal volume (ml) | 360 | 392 | 386 | 420 | 430 | 376 | 376 | 377 | 388 | 385 |
Expiratory minute volume (ml) | 11.9 | 10.9 | 9.23 | 8.57 | 8.58 | 8.25 | 8.27 | 8.28 | 8.47 | 8.53 |
Peak inspiratory flow rate (liters per minute) | 38 | 48 | 48 | 48 | 48 | 34 | 34 | 34 | 34 | 34 |
Inspiratory time (seconds) | 1.06 | 0.84 | 0.84 | 0.92 | 0.92 | 1.18 | 1.18 | 1.18 | 1.19 | 1.19 |
Expiratory time (seconds) | 1.08 | 1.3 | 1.66 | 2.08 | 2.08 | 1.55 | 1.55 | 1.55 | 1.55 | 1.55 |
Maximum pressure (cmH2O) | 27 | 32 | 33 | 30 | 32 | 26 | 26 | 30 | 34 | 31 |
Plateau pressure (cmH2O) | 20 | 29 | 30 | 24 | 26 | 25 | 25 | 29 | 35 | 29 |
Mean airway pressure (cmH2O) | 18 | 25 | 25 | 17 | 18 | 18 | 18 | 22 | 22 | 19 |
PEEP / PEEP Low (APRV) (cmH2O) | 10 | 20 | 20 | 12 | 12 | 12 | 12 | 16 | 16 | 12 |
Intrinsic PEEP (cmH2O) | 0.7 | 0.7 | 0.3 | 0.5 | 0.5 | 0.8 | 0.7 | 0.7 | 0.8 | 0.8 |
FiO2 | 100 | 90 | 50 | 60 | 60 | 60 | 60 | 60 | 60 | 90 |
SpO2 | 87 | 92 | 96 | 93 | 100 | 100 | 100 | 99 | 85 | 95 |
Respiratory system compliance (Static) | 25 | 41 | 34 | 38 | 22 | 30 | 32 | 36 | 35 | 34 |
Static resistance | 11 | 5.8 | 5.5 | 7.3 | 8.6 | 6.3 | 6.2 | 9.8 | 7.4 | 7.2 |
pH | 7.238 | 7.412 | – | 7.41 | 7.42 | 7.534 | 7.529 | 7.52 | 7.41 | 7.45 |
PCO2 (mmHg) | 49.7 | 31 | – | 30.1 | 31.7 | 33.6 | 29 | 31 | 38.8 | 37.3 |
PO2 (mmHg) | 42 | 234 | – | 86.1 | 105.2 | 96.7 | 61 | 110 | 48.8 | 57 |
HCO3 (mmol/L) | 20.7 | 19.3 | – | 19 | 20.2 | 27.7 | 24.2 | 24.8 | 24.1 | 25.6 |
B.E. | −6.9 | −4.1 | – | −4.1 | −3.1 | 5.4 | 1 | 2.8 | −0.3 | 1.9 |
Sat O2 (%) | 68.6 | 99.5 | – | 96.8 | 98 | 98 | 94 | 98.5 | 85 | 91.1 |
PaO2/FiO2 | 42 | 260 | – | 143 | 175 | 161.1 | 101.6 | 183.3 | 81 | 131 |
Iox | 42.8 | 9.6 | – | 11.8 | 10.2 | 11.1 | 17.7 | 12 | 27.1 | 14.5 |