|
Age, years
|
69 ± 14
|
|
Male
|
N = 1794
|
|
APACHE II
|
16 ± 5
|
|
NIV failure
|
N = 740
|
|
Diagnosis
| |
|
AECOPD
|
N = 1122
|
|
Pneumonia
|
N = 652
|
|
ARDS
|
N = 197
|
|
Sleep apnoea-hypopnea syndrome
|
N = 65
|
|
Asthma
|
N = 70
|
|
Heart failure
|
N = 50
|
|
Bronchiectasis
|
N = 46
|
|
Sepsis
|
N = 44
|
|
Pulmonary embolism
|
N = 39
|
|
Pulmonary tuberculosis associated sequelae
|
N = 35
|
|
Chest wall deformity
|
N = 22
|
|
Obesity-hypoventilation syndrome
|
N = 6
|
|
Chronic thoracic sequelae
|
N = 2
|
|
Others
|
N = 145
|
|
Underlying disease
| |
|
Hypertension
|
N = 889
|
|
Diabetes mellitus
|
N = 493
|
|
Chronic liver disease
|
N = 53
|
|
Chronic kidney disease
|
N = 104
|
|
Chronic heart disease
|
N = 201
|
|
Chronic lung disease
|
N = 1459
|
|
Immunosuppression
|
N = 100
|
|
Solid tumour
|
N = 238
|
|
Variables collected before NIV
| |
|
GCS
|
14.6 ± 1.2
|
|
Systolic blood pressure, mmHg
|
137 ± 26
|
|
Diastolic blood pressure, mmHg
|
81 ± 16
|
|
Heart rate, beats/min
|
134 ± 23
|
|
Respiratory rate, breaths/min
|
31 ± 7
|
|
pH
|
7.36 ± 0.11
|
|
FiO2
|
0.42 ± 0.15
|
|
PaCO2, mmHg
|
57 ± 26
|
|
PaO2, mmHg
|
72 ± 39
|
|
PaO2/FiO2
|
178 ± 87
|
|
Variables collected after 1 h of NIV
| |
|
Tidal volume, mL
|
413 ± 160
|
|
Minute ventilation, L
|
11.2 ± 6.6
|
|
Inspiratory pressure, cmH2O
|
15 ± 4
|
|
Expiratory positive airway pressure, cmH2O
|
6 ± 2
|
|
GCS
|
14.6 ± 1.2
|
|
Systolic blood pressure, mmHg
|
127 ± 23
|
|
Diastolic blood pressure, mmHg
|
74 ± 14
|
|
Heart rate, beats/min
|
104 ± 23
|
|
Respiratory rate, breaths/min
|
27 ± 7
|
|
pH
|
7.39 ± 0.09
|
|
FiO2
|
0.50 ± 0.16
|
|
PaCO2, mmHg
|
54 ± 22
|
|
PaO2, mmHg
|
95 ± 40
|
|
PaO2/FiO2
|
205 ± 89
|
