Representative data for different surgical therapies in emphysema
| Surgical intervention | FEV1 L | TLC L | RV L | RV:TLC | [Ref.] | ||||
| Pre-op. | Post-op.# | Pre-op. | Post-op.# | Pre-op. | Post-op.# | Pre-op. | Post-op.# | ||
| Bullectomy | 1.13 | 1.44 | 8.02 | 6.91 | 5.28 | 3.73 | [2] | ||
| Bilateral LVRS | 0.77 | 1.10 | 7.58 | 6.32 | 5.33 | 3.65 | [12] | ||
| Bilateral LVRS | 0.73 | 0.92 | 7.3 | 6.3 | 4.8 | 3.4 | 0.65 | 0.54 | [13] |
| Bilateral LVRS | 2.48 | 3.4 | 8.45 | 7.74 | 5.32 | 3.96 | 0.63 | 0.51 | [14] |
Data presented as mean, unless otherwise stated. FEV1: forced expiratory volume in one second; TLC: total lung capacity; RV: residual volume; Pre-op.: pre-operative; Post-op.: post-operative; LVRS: lung volume reduction surgery. #: post-op. values chosen from as close as possible to 3 months.