Research Article
Cochlear Implant Outcomes and Genetic Mutations in Children with Ear and Brain Anomalies
Table 4
Types of cochlear malformations.
| | Common cavity | Cochlear hypoplasia (total = 6 cases) | Incomplete partition type 1 (total = 2 cases) | Incomplete partition type 2 (total = 7 cases) | Incomplete partition type 3 (total = 2 cases) | Cochlear basal turn dysplasia (total = 4 cases) |
| Sex (female : male) | — | 2 : 4 | 0 : 2 | 3 : 4 | 1 : 1 | 0 : 4 | Mean age (in years) at the time of surgery | — | 5 | 3 | 5 | 7 | 2 | Mean period (in months) of using cochlear implant | — | 59 | 82 | 85 | 77 | 73 | Implanted ear (°) | — | 2L, 4R | 1L, 1R | 2L, 4R, 1B | 1L, 1R | 2L, 1R, 2B | Malformed side (°) | — | 1L, 1R, 4B | 2B | 1R, 6B | 2B | 4B | % of progressive hearing loss | — | 40% | — | 28.6% | 50% | 25% |
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(R = right; L = left; B = bilateral).
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