Table 4.
Spirometry and lung volume changes after the Nuss procedure
| Symmetric type | p a | Asymmetric type | p a | p b | |
|---|---|---|---|---|---|
| FVC | −20.3 ± 5.2 | <0.0001* | −18.8 ± 9.9 | 0.0005* | 0.8671 |
| FEV1 | −15.3 ± 6.6 | 0.0001* | −15.6 ± 10.4 | 0.002* | 0.8012 |
| FEV1/FVC | 5.4 ± 4.7 | 0.0081* | 4.7 ± 4 | 0.0078* | 0.8656 |
| FEF25–75 | 9.4 ± 22.6 | 0.2445 | 10.2 ± 10.3 | 0.0178* | 0.9135 |
| PEF | 3.3 ± 9.6 | 0.3282 | −8.1 ± 9.9 | 0.0391* | 0.0151* |
| MVV | 8.1 ± 9.9 | 0.0397* | 7.4 ± 20.8 | 0.3134 | 0.9249 |
| TLC | −7.2 ± 12 | 0.2525 | −6.6 ± 9.1 | 0.0626 | 0.9083 |
| VC | −20.2 ± 7.3 | 0.0035* | −18 ± 11.7 | 0.0017* | 0.6916 |
| IC | −18.8 ± 20.2 | 0.1064 | −16.4 ± 14.2 | 0.0084* | 0.2269 |
| RV | 41.8 ± 64.5 | 0.2211 | 37.4 ± 32.9 | 0.0092* | 0.9985 |
| RV/TLC | 41.6 ± 41.8 | 0.0903 | 48.6 ± 33.6 | 0.0025* | 0.8341 |
FEF25–75 = forced inspiratory flow from 25% exhalation to 75% exhalation; FEV1 = forced expiratory volume in 1 second; FVC = forced vital capacity; IC = inspiratory capacity; MVV = maximum voluntary ventilation; PEF = peak expiratory flow; RV = residual volume; TLC = total lung capacity; VC = vital capacity.
aThe p values of the difference between the postoperative parameters and the preoperative parameters.
bThe p values of the difference between the symmetric type and the asymmetric type.
*Values of p < 0.05 are statistically significant.