Table 2 Vocal assessments performed preoperatively and 12 months after injection of adipose-derived stromal vascular fraction
Preoperative vocal assessment | 12-month vocal assessment | ||
|---|---|---|---|
Self-assessment | VHI 30 (/ 120) | 75 | 9 |
Perceptual analysis | GRB of the Hirano scale | G2R2B0 | G1R1B0 |
Acoustic analysis | Fundamental frequency (Hz) | 180 | 203 |
Vocal range (Hz) | 381 | 921 | |
Jitter (%) | 4.6 | 0.2 | |
Signal to noise ratio (dB) | 9.5 | 17.7 | |
Aerodynamic analysis | MPT (s) | 13.2 | 7.8 |
Oral air flow (cm3/s) | 203 | 198 | |
ESP at the phonatory threshold (hPa) | 7.9 | 7.3 |