Table 2. Hearing loss (dB) at 8000 and 16000 Hz, between D7 and D0, between D30 and D0, and between D30 and D7, in the 6 guinea pigs studied for macroscopic anatomy and with poor hearing (hearing loss > 40 dB).
| Animal and array type | Macroscopic anatomy findings | Eshraghi grading system [12] | Hearing loss (dB) | |||||
|---|---|---|---|---|---|---|---|---|
| D7-D0 | D30-D0 | D30-D7 | ||||||
| 8000 | 16000 | 8000 | 16000 | 8000 | 16000 | |||
| GP1, 0.3 | Fract. OSL | 4 | 20 | 60 | 30 | 55 | 10 | -5 |
| GP2, 0.4 | Translocation | 3 | 50 | 65 | 55 | 55 | 5 | -10 |
| GP3, 0.4 | BM Contact | 1 | 70 | 70 | 70 | 75 | 0 | 5 |
| GP4, 0.4 | BM Contact + Fibrosis | 1 | 35 | 60 | 60 | 70 | 25 | 10 |
| GP5, 0.4R | Fibrosis only | 0 | 15 | 60 | 35 | 65 | 20 | 5 |
| GP6, 0.4 | Fibrosis only | 0 | 30 | 35 | 35 | 50 | 5 | 15 |
Individual hearing loss values measured at 8 and 16 kHz in the 6 guinea pigs (GP) with poor hearing and studied for macroscopic anatomy.
Abbreviations: Fract. OSL, position with fractured osseous spiral lamina; Translocation, translocation to the scala vestibuli; BM Contact, position with basilar membrane contact; BM Contact + Fibrosis, position with basilar membrane contact associated with fibrosis.