Table 2.
Preoperative and postoperative voice data.
| Patient No. | Mucosal wave | Glottal closure | MPT (sec) | MFR (ml/sec) | Grade | Roughness | Breathiness | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Preop | Postop | Preop | Postop | Preop | Postop | Preop | Postope | Preope | Postop | Preop | Postop | Preop | Postop | ||
| Group I | 1 | 1 | 3 | 1 | 3 | 8.9 | 26.5 | 184.0 | 86.0 | 1 | 0 | 0 | 0 | 1 | 0 |
| 2 | 1 | 2 | 2 | 2 | 6.2 | 19.9 | 109.0 | 70.0 | 2 | 0 | 1 | 0 | 1 | 0 | |
| 3 | 3 | 3 | 2 | 3 | 9.6 | 13.5 | 116.0 | 104.0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 5 | 1 | 2 | 2 | 2 | 8.7 | 16.2 | 176.0 | 168.0 | 1 | 0 | 1 | 0 | 1 | 0 | |
| 6 | 0 | 2 | 0 | 3 | 2.7 | 10.6 | 932.0 | 146.0 | 2 | 1 | 2 | 1 | 2 | 1 | |
| 8 | 1 | 3 | 2 | 3 | 6.5 | 10.4 | 114.0 | 88.0 | 1 | 0 | 0 | 0 | 1 | 0 | |
| Mean ± SD | 1.2 ± 1.0 | 2.5 ± 0.5 | 1.5 ± 0.8 | 2.7 ± 0.5 | 7.1 ± 2.6 | 16.2 ± 6.2 | 271.8 ± 325 | 110.3 ± 38.4 | 1.2 ± 0.8 | 0.2 ± 0.4 | 0.7 ± 0.8 | 0.2 ± 0.4 | 1.0 ± 0.6 | 0.2 ± 0.4 | |
| Group II | 4 | 3 | 2 | 3 | 3 | 22.2 | 25.4 | 61.0 | 62.0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 7 | NA | 3 | NA | 3 | NA | 14.9 | NA | 64.0 | NA | 0 | NA | 0 | NA | 0 | |
| 9 | 1 | 1 | 3 | 3 | 22.4 | 24.3 | 60.0 | 102.0 | 2 | 1 | 1 | 1 | 2 | 1 | |
| 10 | IV | IV | IV | IV | 11.3 | 11.5 | 41.0 | 78.0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 11 | NA | 2 | NA | 3 | NA | 12.0 | NA | 168.0 | NA | 0 | NA | 0 | NA | 0 | |
| 12 | NA | 3 | NA | 3 | NA | 17.7 | NA | 168.0 | NA | 0 | NA | 0 | NA | 0 | |
| Mean ± SD | 2.0± 1.4 | 2.2 ± 08 | 3.0 ± 0.0 | 3.0 ± 0.0 | 18.6 ± 6.4 | 17.6 ± 6.0 | 54.0 ± 11.3 | 107 ± 49.4 | 0.7 ± 1.2 | 0.2 ± 0.4 | 0.3 ± 0.6 | 0.2 ± 0.4 | 0.7 ± 1.2 | 0.2 ± 0.4 | |
NA: not assessed, IV: invisible glottis during phonation, MPT: maximum phonation time, and MFR: mean airflow rate.