Descriptive physiology before and after lung volume reduction surgery (LVRS)
| Before LVRS (16M/5F) | 3 months after LVRS | |
|---|---|---|
| FVC=forced vital capacity; FEV1=forced expiratory volume in 1 second; RV=residual volume; TLC=total lung capacity; FRC=functional residual capacity; Tlco=carbon monoxide transfer factor. | ||
| *p<0.0001 v preoperative value. | ||
| Age (years) | 62.3 (7.7) | |
| FVC (l) | 2.7 (0.7) | 3.3 (0.7)* |
| FEV1 (l) | 0.8 (0.2) | 1.1 (0.8)* |
| RV (l) | 5.2 (0.9) | 3.5 (0.7)* |
| TLC (l) | 8.2 (1.2) | 7.0 (1.1)* |
| FRC (l) | 6.3 (1.0) | 4.8 (0.8)* |
| Tlco (mmol/min/kPa) | 3.3 (1.8) | 3.2 (1.1) |
| Cardiopulmonary exercise test (Watts) | 26.2 (22.8) | 44.4 (27.1)* |