Table 1.
Sound localization, behavioural audiometry, and the SSQ in children with congenital single-sided deafness with CI.
| Author | Subject | Age at CI | Sound localization | Behavioural audiometry and the SSQ score |
|---|---|---|---|---|
| Arndt et al., 201518 | Child A | 4.3 y | A substantial increase in the localization error | Poor performance in audiological testing The SSQ score showed almost no improvement after CI compared with the preoperative condition |
| Child B | 13.8 y | A substantial decrease in the localization error 12 months after CI compared with that in the unaided condition | Poor performance in audiological testingSSQ scores were lower for spatial hearing and slightly higher for hearing quality with CI compared with scores in the unaided situation | |
| Child C | 3.2 y | – | – | |
| Child D | 1.8 y | – | – | |
| Távora-Vieira and Rajan, 201519 | S1 | 17 mo | – | S1 was too young to be assessed with formal measures |
| S2 | 4.5 y | – | – | |
| S3 | 6.8 y | S3 did not achieve any improvement in localization ability | Speech perception in noise scores with CI on did not differ from those with CI off | |
| Beck et al., 201720 | 10 | 21–80 mo | – | (1) Children implanted at a younger age (≤38 mo) showed measurable speech discrimination benefits, but older children (≥48 mo) had lower speech discrimination scores(2) SSQ: An increase in the SSQ score was found in evaluation by parents; self-assessment of children failed to reach significance |
| Thomas et al., 201717 | 14/21 | 5 y and 6 mo; 3 y and 0 mo | Lateralization ability (n = 14) in the CI-aided condition was significantly better than that in the unaided condition when stimuli were presented on the deaf side and on the normal hearing side, but not when presented from the front (0°) | Speech comprehension in noise was significantly better with CI than without CISSQ: Scores on the parental questionnaire were significantly higher after CI than preoperatively before CI for all three subscales of speech, spatial, and quality |
| Ramos Macías et al., 20194 | 4/11 | 29 mo | Positive results were obtained in the Auditory Lateralization Test for the following modalities: 0°, 45°, and 90° | No results related to improvement in speech discriminationSSQ: The SSQ questionnaire results showed a significant improvement |
Abbreviations: SSQ: Speech, Spatial, and Qualities of Hearing Scale; CI: cochlear implantation; y: years; mo: months.