Extubation success (n = 147) | Extubation failure (n = 23) | |||
---|---|---|---|---|
Age (years) | 66 ± 14 | 67 ± 12 | ||
Days on MV (n) | 7 ± 5 | 8 ± 6 | ||
Pre-existent comorbidities (%) | ||||
Diabetes mellitus | 33 | 35 | ||
Hypertension | 57 | 48 | ||
Cardiac disease | 23 | 22 | ||
COPD | 16 | 30 | ||
Etiology of acute respiratory failure (%) | ||||
Septic shock | 29 | 26 | ||
Heart failure | 17 | 26 | ||
Respiratory | 20 | 26 | ||
Trauma | 6 | 0 | ||
Other | 29 | 22 |
Baseline | Minute 30 | Baseline | Minute 30 | |
---|---|---|---|---|
HR (beats/min) | 88 ± 16 | 91 ± 16† | 83 ± 17 | 87 ± 18† |
MAP (mmHg) | 82 ± 13 | 85 ± 15† | 79 ± 14 | 80 ± 12 |
RR (resp/min) | 19 ± 4 | 23 ± 5† | 18 ± 3 | 23 ± 4† |
Vt (mL) | 454 ± 96 | 430 ± 123† | 438 ± 115 | 367 ± 132† |
pH | 7.46 ± 0.05 | 7.44 ± 0.06† | 7.47 ± 0.04 | 7.44 ± 0.04† |
pCO2 (mmHg) | 37 ± 6 | 38 ± 6† | 41 ± 9 | 42 ± 14 † |
Hb (g/dL) | 9.9 ± 1.8 | 9.9 ± 1.8 | 10.1 ± 2 | 10.3 ± 2.1 |
SaO2 (%) | 96 ± 8 | 97 ± 3 | 97 ± 3 | 96 ± 3 |
ScvO2 (%) | 66 ± 9 | 66 ± 8 | 62 ± 9 | 61 ± 5* |
StO2 (%) | 80 ± 6 | 80 ± 7 | 76 ± 11 | 77 ± 9 |
DeO2 (%/min) | − 13.1 ± 8.4 | − 13.6 ± 10.7 | − 12.7 ± 7 | − 17.2 ± 10.3† |
nirVO2 (U) | 139 ± 80 | 159 ± 135† | 129 ± 75 | 174 ± 97† |
THI (U) | 10.7 ± 2.9 | 11.3 ± 3.1† | 10.0 ± 3.9 | 10.5 ± 4.0 |
ReO2 (%/s) | 4.1 ± 1.6 | 4.2 ± 1.8† | 3.3 ± 1.9* | 3.7 ± 2.0 |
Hyperemia AUC (U) | 12.2 ± 6.5 | 12.9 ± 5.7 | 7.1 ± 4.7** | 8.4 ± 4.1** |
DeO2 ratio | 1.1 ± 0.3 | 1.5 ± 0.6** | ||
nirVO2 ratio | 1.1 ± 0.4 | 1.5 ± 0.5* |