Table 2.
Demographic and baseline characteristics
| Age, mean ± SD, years | 57.4 ± 17.4 |
| Male, n (%) | 29 (40) |
| BMI, mean ± SD, kg/m2 | 25 ± 6 |
| SAPS2, mean ± SD | 33 ± 16 |
| Comorbidities, n (%) | |
| Active smoking | 35 (49) |
| COPD | 23 (32) |
| Other pulmonary disease | 13 (18) |
| Chronic heart disease | 4 (6) |
| Immunosuppression | 30 (42) |
| Main cause of ICU admission, n (%) | |
| Respiratory failure | 34 (48) |
| Pneumonia | 20 (28) |
| Acute interstitial pneumonia | 7 (10) |
| Acute chest syndrome | 4 (6) |
| Other | 3 (4) |
| Hemoptysis | 19 (26) |
| Thoracic surgery/traumatism | 11 (15) |
| Abdominal surgery | 1 (1) |
| Extra-pulmonary sepsis | 2 (3) |
| Other | 5 (7) |
| Pre-bronchoscopic respiratory parameters | |
| SpO2, median [IQR], % | 97 [94.8–99.2] |
| RR, mean ± SD, per min | 27 ± 9 |
| PaO2 < 60 mmHg, n (%) | 17 (24) |
| RR > 30 cycles per min, n (%) | 34 (47) |
| Respiratory support, n (%) | |
| Oxygen therapy > 8L/min | 30 (42) |
| HFNC | 15 (21) |
| NIV | 7 (10) |
| Invasive mechanical ventilation | 4 (6) |
| Pre-bronchoscopic hemodynamic parameters | |
| MAP, median [IQR], mmHg | 93 [83–101] |
| HR, mean ± SD, beat per min | 99 ± 21 |
BMI: body mass index, SAPS2: Simplified Acute Physiologic Score, COPD: chronic obstructive pulmonary disease, SpO2: oxygen saturation by pulse oximetry, RR: respiratory rate, PO2: arterial partial pressure of oxygen, HFNC: high-flow humidified oxygen therapy through nasal cannula, NIV: non-invasive ventilation, MAP: mean arterial pressure, HR: heart rate