Table 5. Review of previous studies on bronchial-valve management of air-leaks.
| Authors | Patients | Type of valves | Aetiology of air-leaks | Valves per patient | Chest drainage duration before valves (days) | Chest drainage removal after valves (days) | Resolution of air-leaks | Valve removal (patient/days) | Complications |
|---|---|---|---|---|---|---|---|---|---|
| Gillespie (3) | 7 | Both | Different | 3.5 | 28 | 16 | 6 (86%) | 5 (71%)/37 | 0 |
| Firlinger (4) | 13 | Both | Different | 1.4±0.7 | 18±0.8 | 9±6 | 10 (77%) | 7 (53%)/NR | 3 (23%) |
| Dooms (5) | 9 | IBV | Post-operative | 4 | 7 | 4 | 6 (67%) complete; 3 (33%) moderate | NR/23 | 0 |
| Reed (6) | 21 | IBV | Different | 3 | 11 | 15 | NR | NR | 0 |
| Travaline (7) | 40 | EBV | Different | 2.9±1.9 | 20 | 7.5 | 19 (47%) complete; 18 (45%) moderate; 2 (5%) no-change; 1 (3%) unknown |
8 (20%)/66±53 | 6 (15%) |
| Gilbert (8) | 75 | IBV | Different | 2 | 9 | 16 | 72 (96%) | NR | 2 (3%) |
| Cordovilla (9) | 8 | EBV | Different | 2 | 15.5 | 13 | 6 (75%) | NR/52.5 | 0 |
| Podgaets (10) | 19 | IBV | Different | 4 | 9 | 3 | 18 (95%) | NR | 0 |
| Hance (11) | 14 | EBV | Different | 2 | 7.5 | 153 | 8 (57%) | 3 (21%)/138±84 | 6 (43%) |
| Present | 67 | EBV | Different | 1.2±0.4 | 16.2±8.8 | 7.3±2.7 | 59 (88%) complete; 6 (9%) moderate; 2 (3%) no-change | 39 (58%)/106±10 | 1 (1%) |
EBV, endobronchial valves (Zephyr, Pulmonx Corp., Redwood City, CA, USA); IBV, intrabronchial valves (Spiration, Olympus, Redmond, WA, USA).