Group | Baseline | Within 1 h | Within 2 h | Within 6 h | Discontinuation of NIV or reintubation | |
---|---|---|---|---|---|---|
Heart rate (bpm) | Successful | 89 ± 15 | 87 ± 17 | 86 ± 15 | 86 ± 17 | 84 ± 15 *2 |
Reintubation | 97 ± 19 | 96 ± 17 | 99 ± 12 | 95 ± 11 | 92 ± 10 | |
Mean arterial blood | Successful | 76 ± 15 | 77 ± 13 | 75 ± 13 | 77 ± 12 | 78 ± 11 |
pressure (mmHg) | Reintubation | 77 ± 18 | 74 ± 8 | 74 ± 4 | 74 ± 8 | 74 ± 12 |
pH | Successful | 7.44 ± 0.05 | 7.39 ± 0.17 | 7.44 ± 0.04 | 7.43 ± 0.12 | 7.45 ± 0.05 |
Reintubation | 7.40 ± 0.13 | 7.44 ± 0.05 | 7.40 ± 0.16 | 7.45 ± 0.07 | 7.40 ± 0.15 | |
PaO2/FIO2 (mmHg) | Successful | 143 ± 44 †1 | 206 ± 79 *2, †1 | 218 ± 66 *2, †1 | 231 ± 72 *2, †2 | 244 ± 67 *2, †2 |
Reintubation | 103 ± 28 | 134 ± 79 | 139 ± 96 | 129 ± 58 | 103 ± 41 | |
PaCO2 (mmHg) | Successful | 37 ± 5 | 37 ± 5 | 38 ± 5 | 38 ± 4 | 38 ± 5 |
Reintubation | 45 ± 14 | 48 ± 22 | 47 ± 20 | 41 ± 4 | 48 ± 20 | |
Respiratory rate | Successful | 25 ± 6 | 23 ± 5 *2 | 22 ± 5 *2 | 21 ± 4 *2 | 22 ± 4 *2 |
(breaths/min) | Reintubation | 25 ± 4 | 26 ± 6 | 26 ± 7 | 23 ± 10 | 23 ± 10 |