Cochlear implants and tinnitus

Baguley, David; Atlas, Marcus D.

doi:10.1016/s0079-6123(07)66033-6

Cited by 134 publications

(153 citation statements)

References 35 publications

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“…Even though it has been reported that tinnitus is a common symptom in profound hearing loss 30 , the percentage of tinnitus in profound hearing loss cases is much lesser in the present study.…”

Section: Tinnitus In Different Degrees Of Hearing Losscontrasting

confidence: 81%

One-year prevalence and risk factors of tinnitus in older individuals with otological problems

Thirunavukkarasu¹,

Geetha²

2013

The International Tinnitus Journal

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Objective: The present study was carried out to estimate one year prevalence and risk factors of tinnitus in the older individuals (60 years and above) who reported with the ear and/or hearing related complaint to All India Institute of Speech and hearing, Mysore. Methods: The case files of those who visited the institute during the above said period were reviewed retrospectively. Results: The results of the study revealed that the prevalence of tinnitus was 16.81%.It was also found that 60.9% of the individuals with tinnitus were males. Further, 97.5% of the individuals with tinnitus had hearing loss. In addition, 28.53% of the individuals with tinnitus had moderate degree of hearing loss followed by moderately severe degree of hearing loss. Most of these individuals had sensorineural impairment. Conclusion: It can be concluded that prevalence of tinnitus is quite high in the older individuals with otological problems. The hearing loss, gender, giddiness, headache, hypertension, and diabetes were found to be major risk factors.

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Section: Tinnitus In Different Degrees Of Hearing Losscontrasting

confidence: 81%

One-year prevalence and risk factors of tinnitus in older individuals with otological problems

Thirunavukkarasu¹,

Geetha²

2013

The International Tinnitus Journal

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“…Electric stimulation used in cochlear implants is well known to reduce tinnitus (Baguley and Atlas 2007;Chang and Zeng 2012;Ito and Sakakihara 1994;Okusa et al 1993;Quaranta et al 2004;Rubinstein et al 2003;Zeng 2004). The approach tested in this study is, however, very different from stimulating the cochlea with cochlear implants.…”

Section: Implications For Understanding Tinnitus Mechanisms and Tinnimentioning

confidence: 92%

Suppression of putative tinnitus-related activity by extra-cochlear electrical stimulation

Noreña

Mulders

Robertson

2015

Journal of Neurophysiology

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Noreña AJ, Mulders WH, Robertson D. Suppression of putative tinnitus-related activity by extra-cochlear electrical stimulation. J Neurophysiol 113: 132-143, 2015. First published October 8, 2014 doi:10.1152/jn.00580.2014.-Studies on animals have shown that noise-induced hearing loss is followed by an increase of spontaneous firing at several stages of the central auditory system. This central hyperactivity has been suggested to underpin the perception of tinnitus. It was shown that decreasing cochlear activity can abolish the noise-induced central hyperactivity. This latter result further suggests that an approach consisting of reducing cochlear activity may provide a therapeutic avenue for tinnitus. In this context, extra-cochlear electric stimulation (ECES) may be a good candidate to modulate cochlear activity and suppress tinnitus. Indeed, it has been shown that a positive current applied at the round window reduces cochlear nerve activity and can suppress tinnitus reliably in tinnitus subjects. The present study investigates whether ECES with a positive current can abolish the noise-induced central hyperactivity, i.e., the putative tinnitus-related activity. Spontaneous and stimulus-evoked neural activity before, during and after ECES was assessed from single-unit recordings in the inferior colliculus of anesthetized guinea pigs. We found that ECES with positive current significantly decreases the spontaneous firing rate of neurons with high characteristic frequencies, whereas negative current produces the opposite effect. The effects of the ECES are absent or even reversed for neurons with low characteristic frequencies. Importantly, ECES with positive current had only a marginal effect on thresholds and tone-induced activity of collicular neurons, suggesting that the main action of positive current is to modulate the spontaneous firing. Overall, cochlear electrical stimulation may be a viable approach for suppressing some forms of (peripheral-dependent) tinnitus.

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“…88 More than 80% of patients with bilateral profound sensorineural hearing loss have tinnitus. Cochlear implantation improves or eliminates tinnitus in up to 86% of these patients, although 9% report worse postoperative tinnitus.…”

Section: Surgery For Tinnitusmentioning

confidence: 99%

Tinnitus

Baguley¹,

McFerran²,

Hall³

2013

The Lancet

1,022

911

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Tinnitus is a common medical symptom that can be debilitating. Risk factors include hearing loss, ototoxic medication, head injury, and depression. At presentation, the possibilities of otological disease, anxiety, and depression should be considered. No eff ective drug treatments are available, although much research is underway into mechanisms and possible treatments. Surgical intervention for any otological pathology associated with tinnitus might be eff ective for that condition, but the tinnitus can persist. Available treatments include hearing aids when hearing loss is identifi ed (even mild or unilateral), wide-band sound therapy, and counselling. Cognitive behavioural therapy (CBT) is indicated for some patients, but availability of tinnitus-specifi c CBT in the UK is poor. The evidence base is strongest for a combination of sound therapy and CBT-based counselling, although clinical trials are constrained by the heterogeneity of patients with tinnitus.

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Cochlear implants and tinnitus

Cited by 134 publications

References 35 publications

One-year prevalence and risk factors of tinnitus in older individuals with otological problems

One-year prevalence and risk factors of tinnitus in older individuals with otological problems

Suppression of putative tinnitus-related activity by extra-cochlear electrical stimulation

Tinnitus

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