| Signs | Effective | Percentage (%) |
| Permanent dyspnea | 61 | 70.11 |
| Cough | 54 | 62.07 |
| Difficulty suckling | 29 | 33.33 |
| Tears | 15 | 17.24 |
| Cyanosis | 19 | 21.84 |
| Dyspnea on exertion | 4 | 4.60 |
| Adynamia | 2 | 2.30 |