Table 2.
Characteristics and outcomes of patients with persistent air-leak who underwent endobronchial valve treatment (N = 18)
| Characteristics | Numbers |
|---|---|
| Age, years | 63.4 ± 13.1 |
| Male sex | 17 (94.4) |
| Body mass index, kg/m2 | 21.6 ± 4.2 |
| Causes of air-leak | |
| Spontaneous secondary pneumothorax | 8 (44.4) |
| Parapneumonic effusion/empyema | 4 (22.2) |
| Lung resection surgery | 3 (16.7) |
| Bronchobiliary fistula | 1 (5.6) |
| Mechanical ventilation, underlying emphysema | 1 (5.6) |
| Unknown | 1 (5.6) |
| Adverse events | |
| Hemoptysis | 2 (11.1) |
| Non-massive | 1 (5.6) |
| Massive | 1 (5.6) |
| Empyema | 1 (5.6) |
| Outcomes | |
| Improvement in air-leak | 14 (77.8) |
| Time to resolution of pneumothorax on chest radiograph, days | 3 (0–19.5) |
| Time to EBV after chest tube insertion, days | 25 (10.0–49.5) |
| Time to chest tube removal after EBV insertion, days | 16.5 (4.75–33.5) |
| Total time of chest tube retention, days | 46.5 (23.3–79.0) |
Data are presented as mean ± standard deviation or number (%) or median (interquartile range) of patients
Abbreviation: EBV Endobronchial valve