CC BY-NC-ND 4.0 · Laryngorhinootologie 2019; 98(S 02): S304
DOI: 10.1055/s-0039-1686326

Set Memory in Congenital Deafness and Bilateral Cochlear Implant

D Adams
1   Medizinische Hochschule Hannover Hoerzentrum, Hannover
A Buechner
1   Medizinische Hochschule Hannover Hoerzentrum, Hannover
A Illg
1   Medizinische Hochschule Hannover Hoerzentrum, Hannover
T Lenarz
2   Medizinische Hochschule Hannover, Hannover
› Author Affiliations

Children are able to repeat normal and abnormal sentences when they have built a formal linguistic system of rules, which works independently of world knowledge. In clinical routine, we assess grammatical skills of cochlear implanted children with the subtest "Set Memory" from the “Language Acquisition Test for three to five year old children” (SETK 3 – 5). The data of 98 children in the test age of 48 to 71 months were evaluated retrospectively. The analysis was carried out in two age groups: gr.1 n = 60 with a mean implantation age of 9 months (min-max: 5 – 12 months) and gr. 2 n = 38 with a mean implantation age of 17 month (min-max: 13 – 24 month). All children were congenitally deaf on both sides and simultaneously bilaterally provided within the first two years of life. The evaluation is carried out in the percentile rank, which allows the comparison to hearing peers. Gr.1 achieves a mean percentile rank of 41 and gr.2 a mean percentile rank of 18. The group of earlier implanted children shows significantly better results, almost comparable to the hearing peers. We conclude that bilaterally congenitally deaf children, simultaneously bilaterally provided with CI within the first year of life, can build up age-appropriate linguistic abilities until enrollment, while there are lower chances for bilaterally congenitally deaf children, provided with CI on both sides in their second year of life.

Publication History

Publication Date:
23 April 2019 (online)

© 2019. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (

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