Hearing performance as a predictor of postural recovery in cochlear implant users

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Objective: This study aimed to evaluate if hearing performance is a predictor of postural control in cochlear implant (CI) users at least six months after surgery. Methods: Cross-sectional study including (CI) recipients with post-lingual deafness and controls who were divided into the following groups: nine CI users with good hearing performance (G+), five CI users with poor hearing performance (G−), and seven controls (CG). For each patient,
computerized dynamic posturography (CDP) tests, a sensory organization test (SOT), and an adaptation test (ADT) were applied as dual task performance, with first test (FT) and re-test (RT) on the same day, including a 40—60 min interval between them to evaluate the short-term learning ability on postural recovery strategies. The results of the groups were compared.

Comparing the dual task performance on CDP and the weighted average between all test conditions, the G+ group showed better performance on RT in SOT4, SOT5, SOT6, and CS, which was not observed for G−and CG. The G−group had significantly lower levels of shortterm learning ability than the other two groups in SOT5 (p = 0.021), SOT6 (p = 0.025), and CS (p = 0.031).

The CI users with good hearing performance had a higher index of postural recovery when compared to CI users with poor hearing performance. © 2016 Published by Elsevier Editora Ltda. on behalf of Associac¸˜ao Brasileira de Otorrinolaringologia e Cirurgia C´ervico-Facial. This is an open access article under the CC BY license