Cochlear Implantation in Unilateral Sudden Deafness Improves Tinnitus and Speech Comprehension

Blasco, Michael A.; Redleaf, Miriam

doi:10.1097/mao.0000000000000431

Cited by 103 publications

(68 citation statements)

References 21 publications

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“…Never the less, this percentage is under the expected improvement in unilaterally implanted deaf people without vestibular schwannoma operation 33 . This difference may be due to the small numbers of patients included in our study due to small number of patients receiving cochlear implantation after vestibular schwannoma removal.…”

Section: Discussionmentioning

confidence: 99%

Cochlear implantation improves hearing and vertigo in patients after removal of vestibular schwannoma

Roemer¹,

Lenarz²,

Lesinski‐Schiedat³

2017

The International Tinnitus Journal

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Objective: With rising quality of speech perception in cochlear implant users, the indication widens. Nowadays, cochlear implantation is reasonable even in vestibular schwannoma patients. Speech perception with a cochlear implant is in these patients as promising as in patients with sensorineural hearing loss. However, the impact of cochlear implantation on vertigo and tinnitus after removal of vestibular schwannoma has not been investigated yet. Methods: In a retrospective study, we analysed 12 patients treated with a cochlear implant after removal of vestibular schwannoma. Results: In addition to a promising hearing perception -all patients reported improvement of vertigo. This improvement was also demonstrated by postural analysis. Improvement of tinnitus was achieved in 50% of the patients. Conclusion: Cochlear implantation seems a promising treatment for hearing loss, vertigo and even tinnitus in patients after removal of vestibular schwannoma. However, for successful cochlear implantation with adequate speech perception and improvement of vertigo and tinnitus, functional hearing nerve and intact inner ear anatomy is necessary.

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Section: Discussionmentioning

confidence: 99%

Cochlear implantation improves hearing and vertigo in patients after removal of vestibular schwannoma

Roemer¹,

Lenarz²,

Lesinski‐Schiedat³

2017

The International Tinnitus Journal

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“…Nevertheless, tinnitus can also be a complication after cochlear implantation [Di Nardo et al, 2007;Postelmans et al, 2007;Hou et al, 2010], possibly related to cochlear damage due to the surgery [Nordfalk et al, 2014;Todt et al, 2014]. Van de Heyning et al [2008] reported the first results of cochlear implantation in an attempt to treat tinnitus in single-sided deafness (SSD), after which many studies followed on tinnitus suppression in SSD [Kleinjung et al, 2009;Arndt et al, 2010;Buechner et al, 2010;Palau et al, 2010;Jacob et al, 2011;Kleine Punte et al, 2011;Firszt et al, 2012b;Mendes et al, 2012;Ramos et al, 2012;Hansen et al, 2013;Távora-Vieira et al, 2013 and reviewed by Arts et al, 2012;Blasco and Redleaf, 2014;Tokita et al, 2014;Vlastarakos et al, 2014;van Zon et al, 2015]. As a common conclusion it can be stated that cochlear implantation is a viable treatment option for tinnitus in SSD.…”

Section: Introductionmentioning

confidence: 99%

Tinnitus Suppression by Intracochlear Electrical Stimulation in Single-Sided Deafness: A Prospective Clinical Trial - Part I

et al. 2015

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Cochlear implantation is a viable treatment option for tinnitus, but the underlying mechanism is yet unclear. Is the tinnitus suppression due to the reversal of the assumed maladaptive neuroplasticity or is it the shift in attention from the tinnitus to environmental sounds and therefore a reduced awareness that reduces tinnitus perception? In this prospective trial, 10 patients with single-sided deafness were fitted with a cochlear implant to investigate the effect of looped intracochlear electrical stimulation (i.e. stimulation that does not encode environmental sounds) on tinnitus, in an effort to find optimal stimulation parameters. Variables under investigation were: amplitude (perceived stimulus loudness), anatomical location inside the cochlea (electrode/electrodes), amplitude modulation, polarity (cathodic/anodic first biphasic stimulation) and stimulation rate. The results suggest that tinnitus can be reduced with looped electrical stimulation, in some cases even with inaudible stimuli. The optimal stimuli for tinnitus suppression appear to be subject specific. However, medium-to-loud stimuli suppress tinnitus significantly better than soft stimuli, which partly can be explained by the masking effect. Although the long-term effects on tinnitus would still have to be investigated and will be described in part II, intracochlear electrical stimulation seems a potential treatment option for tinnitus in this population.

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“…when speech is directed towards the implanted ear and noise towards the non-implanted ear (Blasco and Redleaf, 2014;van Zon et al, 2015). In this listening situation, use of the implant allows the patient to access a copy of the speech signal that is less degraded than that which is accessible using their better ear alone.…”

Section: Discussionmentioning

confidence: 99%

“…Studies were identified from existing systematic reviews that assessed the evidence for cochlear implantation in adults with unilateral deafness or highly asymmetric hearing loss (Blasco and Redleaf, 2014;Kitterick et al, 2015;van Zon et al, 2015). These reviews were identified through title and abstract searches of the Medline, EMBASE, PubMed, and Cochrane Library databases.…”

Section: Study Selectionmentioning

confidence: 99%

“…Emerging evidence from early-phase studies suggests that cochlear implantation may be an effective way to improve listening skills impaired by unilateral deafness (Blasco and Redleaf, 2014;van Zon et al, 2015) and to alleviate the associated burden . However, the evidence for implantation in unilaterally deaf patients is limited to a few observational studies and it is as yet unclear what factors may determine whether a patient is likely to receive benefit or not.…”

Section: Introductionmentioning

confidence: 99%

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Predicting speech perception outcomes following cochlear implantation in adults with unilateral deafness or highly asymmetric hearing loss

Kitterick

Lucas

2016

Cochlear Implants International

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Objective: Unilateral deafness and highly asymmetric hearing loss can impair listening abilities in everyday situations, create substantial audiological handicap, and reduce overall quality of life. Preliminary evidence suggests that cochlear implantation may be effective in reversing some of these detrimental effects. Patientlevel data from existing studies were re-analysed to explore potential factors that may be predictive of improved speech perception scores following implantation. Methods: Logistic regression modelling examined whether improved speech perception following implantation under various listening conditions was related to the duration of deafness of the severe-toprofoundly deaf ear and/or the level of hearing in the better ear. Results: Patients with a shorter duration of deafness were more likely to improve in listening conditions that created a less favourable SNR at the implanted ear than the non-implanted ear. Those with more residual hearing in the better ear were more likely to improve in the listening condition that created a less favourable SNR at that ear. Discussion: The analysis suggests that characteristics of both ears may be relevant when seeking to identify those candidates who are likely to obtain benefit to speech perception following cochlear implantation.

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Cochlear Implantation in Unilateral Sudden Deafness Improves Tinnitus and Speech Comprehension

Cited by 103 publications

References 21 publications

Cochlear implantation improves hearing and vertigo in patients after removal of vestibular schwannoma

Cochlear implantation improves hearing and vertigo in patients after removal of vestibular schwannoma

Tinnitus Suppression by Intracochlear Electrical Stimulation in Single-Sided Deafness: A Prospective Clinical Trial - Part I

Predicting speech perception outcomes following cochlear implantation in adults with unilateral deafness or highly asymmetric hearing loss

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