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

Publication date: Available online 31 March 2016
Source:Brazilian Journal of Otorhinolaryngology
Author(s): Mario Edwin Greters, Roseli Saraiva Moreira Bittar, Signe S. Grasel, Jeanne Oiticica, Ricardo Ferreira Bento
ObjectiveThis study aimed to evaluate if hearing performance is a predictor of postural control in cochlear implant (CI) users at least six months after surgery.MethodsCross-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 40–60min interval between them to evaluate the short-term learning ability on postural recovery strategies. The results of the groups were compared.ResultsComparing 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 short-term learning ability than the other two groups in SOT5 (p=0.021), SOT6 (p=0.025), and CS (p=0.031).ConclusionThe CI users with good hearing performance had a higher index of postural recovery when compared to CI users with poor hearing performance.



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