Table 6 Different stages of cicatricial lesions peak expiratory flow
Group | n | Internal diameter of tracheal stenosis before the first interventional therapy (PEF, L/s, mean ± standard deviation) | Internal diameter of tracheal stenosis Mid-term (3 months after the operation) (PEF, L/s, mean ± standard deviation) | Internal diameter of tracheal stenosis Long-term (12 months and above after the operation) (PEF, L/s, mean ± standard deviation) |
|---|---|---|---|---|
Scar hyperplasia | 32 | 3.63 ± 0.37 | 5.14 ± 0.26 | 5.11 ± 0.18 |
Repair under scar formation | 32 | 3.72 ± 0.31 | 5.16 ± 0.17 | 5.12 ± 0.21 |
Mature scars | 32 | 3.61 ± 0.44 | 5.12 ± 0.31 | 5.08 ± 0.42 |