Table 2 Breathing pattern and EAdi parameters during the SBTs and gas exchange parameters immediately before each SBT
From: Impact of prolonged assisted ventilation on diaphragmatic efficiency: NAVA versus PSV
PSV group | NAVA group | |||||
|---|---|---|---|---|---|---|
0 h | 24 h | 48 h | 0 h | 24 h | 48 h | |
CPAP (cmH2O) | 8.43 ± 2.4 | 8.02 ± 2.8 | 8.09 ± 1.54 | 8.3 ± 2.3 | 8 ± 2.7 | 7.8 ± 2.8 |
VT (ml) | 404 ± 185 | 413 ± 154 | 412 ± 172 | 378 ± 124 | 375 ± 120 | 408 ± 120 |
RR (breaths/minute) | 25.9 ± 12.2 | 23.7 ± 9.1 | 23.7 ± 6.7 | 24.3 ± 6.5 | 24 ± 7.8 | 23.6 ± 8.4 |
Ti,NEUR (s) | 0.94 ± 0.36 | 0.93 ± 0.33 | 0.93 ± 0.26 | 0.87 ± 0.25 | 0.80 ± 0.18 | 0.82 ± 0.39 |
Flow peak (L/s) | 0.60 ± 0.2 | 0.59 ± 0.1 | 0.55 ± 0.11 | 0.66 ± 0.27 | 0.68 ± 0.3 | 0.66 ± 0.2 |
EAdiPEAK (μV) | 14.2 ± 6.2 | 17.2 ± 6.7* | 19.06 ± 9.2* | 18.9 ± 10.1 | 13.2 ± 8.9* | 9.2 ± 5.5*§ |
pH | 7.41 ± 0.1 | 7.41 ± 0.1 | 7.44 ± 0.1 | 7.46 ± 0.1 | 7.46 ± 0.1 | 7.45 ± 0.1 |
PaO2/FiO2 | 214 ± 70 | 231 ± 86 | 231 ± 93 | 239 ± 75 | 260 ± 75 | 289 ± 72 |
PaCO2 (mmHg) | 46.3 ± 12.4 | 46 ± 11.5 | 45.6 ± 9.9 | 45.5 ± 11.4 | 46.4 ± 11.1 | 47.6 ± 14.6 |
HCO3− (mEq/L) | 29.43 ± 6.2 | 29.7 ± 6.3 | 30.6 ± 7.2 | 31.5 ± 5.5 | 33 ± 5.6 | 32.6 ± 7.9 |
RASS score | –0.5 ± 1 | –0.33 ± 1.15 | –0.25 ± 1.14 | –0.38 ± 1.04 | –0.46 ± 1.13 | – 0.54 ± 1.05 |