Table 1. Results of clinical studies compared round widow (RW) versus cochleostomy approach in CI.
| Results | Device used | Number of patients | Study |
|---|---|---|---|
| Greater significant damage occurred in cochleostomy and RWE groups than in RW | N/A | 12; 3 groups of temporal bones: insertion through RW, after enlarging RW (RWE) and cochleostomy | Richard et al 12 |
| no statistically significant differences | N/A | 20; 8 (40%) round window-related cochleostomy and 12 (60%) RW | Adunka et al 10 |
| no statistically significant difference | Cochlear Nucleus CI 422 slim straight electrode | 41; 14 cochleostomy | |
| 27 RW approach. | Hassepass et al 11 | ||
| RW was less harmful to residual hearing particularly at 125 Hz ( p < 0.05), than standard cochleostomy | Med-El +Flex (SOFT) | 34; 17 RW-HP with full insertion | |
| -17 cochleostomy with shorter perimodiolar electrodes. | Nordfalk et al 13 |
Abbreviations: CI, cochlear implantation; RW, round window; RWE, enlarged round window.