Δευτέρα 9 Δεκεμβρίου 2019

Cochlear implantation in adults with auditory deprivation: What do we know about it?

Cochlear implantation in adults with auditory deprivation: What do we know about it?:

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Publication date: Available online 2 December 2019

Source: American Journal of Otolaryngology

Author(s): Flavia Sorrentino, Flavia Gheller, Giuseppe Lunardi, Davide Brotto, Patrizia Trevisi, Alessandro Martini, Gino Marioni, Roberto Bovo

Abstract
Introduction
In the ENT community, auditory deprivation is frequently considered as a negative prognostic factor for a good hearing outcome of cochlear implantation (CI), even if a growing literature suggests that this is not completely true. The purpose of this study is to evaluate the results of CI in patients with hearing deprivation, to compare them to results from non-deprived patients and then estimate how time of deprivation impacts on CI outcome and how a bilateral deprivation can affect the outcome compared to a unilateral deprivation.
Methods
Seventy-eight adults with severe to profound post-verbal hearing loss, with and without auditory deprivation history, received CI; audiological results obtained at 3–6–12–24 months follow up post CI were analyzed.
Results
No differences were founded between patients with unilateral deprivation and patients with no deprivation. Patients with bilateral deprivation seem to have a worse hearing outcome compared to that of those patients with unilateral deprivation or no deprivation at all. Long time deprivation (>15 years) seems to have a negative influence on the hearing outcome but results with CI remain excellent.
Conclusions
Auditory deprivation should not be considered a contraindication to CI. The duration of auditory deprivation in the implanted ear seems to be a negative prognostic factor only for ears deprived from more of 15 years.

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