Table 4. Various cause for tracheostomy.
| Cause | Number (n = 25) |
|---|---|
| Before treatment(airway narrowing) | 2 |
| Recurrent/Persistent disease | 19 |
| Radiation toxicity Chondronecrosis Subglottic stricture Persistent breathing difficulty |
1 1 2 |
| Cause | Number (n = 25) |
|---|---|
| Before treatment(airway narrowing) | 2 |
| Recurrent/Persistent disease | 19 |
| Radiation toxicity Chondronecrosis Subglottic stricture Persistent breathing difficulty |
1 1 2 |