Patient | Procedure | Duration of air leak days | Volume of air leak mL·min−1 | Pleural space# mm | SubQ Em | Segments treated¶ | Number of valves |
1 | VATS lobectomy RLL | 7 | 2000 | 0 | Yes | RB 1-2-3 | 4 |
2 | VATS lobectomy RLL | 7 | 1200 | 0 | Yes | RB 1-2-3 | 4 |
3 | VATS lobectomy RUL | 7 | 500 | 30 | Yes | RB 6 | 1 |
4 | Thoracotomy RUL+RML | 9 | 200 | 20 | Yes | NA | NA |
5 | VATS segmentectomy apex RUL | 13 | 360 | 31 | No | RB 2-3 | 2 |
6 | VATS lobectomy RUL | 13 | 180 | 55 | Yes | RB 6 | 4 |
7 | VATS lobectomy RUL | 7 | 180 | 60 | Yes | RB 6-7-8-9-10 | 5 |
8 | Thoracotomy LUL | 7 | 720 | 0 | Yes | LB 8-9-10 | 9 |
9 | Thoracotomy LUL | 8 | 2500 | 20 | Yes | LB 6-9-10 | 6 |
10 | VATS lobectomy RUL | 7 | 480 | 20 | Yes | RB 6-8-9-10 | 7 |
Median | 7 | 490 | 20 | 4 |
SubQ Em: subcutaneous emphysema (assessed on chest radiograph); VATS: video-assisted thoracic surgery; RLL: right lower lobe; RUL: right upper lobe; RML: right middle lobe; LUL: left upper lobe; RB: right segmental bronchus; LB: left segmental bronchus; NA: not applicable. #: measured on chest radiograph as distance between cupola and apex of the lung; ¶: using intrabronchial valve (IBV Valve System; Olympus Respiratory America, Redmond, WA, USA).