Tinnitus in normally hearing patients: clinical aspects and repercussions

Sánchez, Tanit Ganz; Medeiros, Ítalo Roberto Torres de; Levy, Cristiane Passos Dias; Ramalho, Jeanne da Rosa Oiticica; Bento, Ricardo Ferreira

doi:10.1016/s1808-8694(15)31194-0

Cited by 93 publications

(78 citation statements)

References 14 publications

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“…The majority of respondents reported some degree of hearing loss (494, 76.8%), consistent with the association between tinnitus and hearing loss [15]; [16]. The largest group of respondents reported mild hearing loss (n=261, 40.6%), with 149 respondents reporting no hearing loss (23.2%), 172 -moderate (26.8%) and 61 severe/profound hearing loss (9.5%).…”

Section: Figure 2 Age Distribution For All Respondents (Black Bars)supporting

confidence: 65%

Mobile Apps for Management of Tinnitus: Users’ Survey, Quality Assessment, and Content Analysis (Preprint)

Sereda¹,

Smith²,

Newton³

et al. 2018

Preprint

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Section: Figure 2 Age Distribution For All Respondents (Black Bars)supporting

confidence: 65%

Mobile Apps for Management of Tinnitus: Users’ Survey, Quality Assessment, and Content Analysis (Preprint)

Sereda¹,

Smith²,

Newton³

et al. 2018

Preprint

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“…To this end, tinnitus patients with apparently normal hearing (Barnea et al, 1990;Sanchez et al, 2005) represent a challenge to models of tinnitus generation that rely on compromised cochlear function to elicit hyperactivity in brain structures Parra and Pearlmutter, 2007;Kaltenbach, 2010;Rauschecker et al, 2010;Roberts et al, 2010). Cochlear damage is normally manifest as an elevation in hearing thresholds-assessed through pure-tone audiometry-and the absence of any detectable loss of cochlear function in these individuals has been taken to indicate that tinnitus can arise without any peripheral hearing loss.…”

Section: Introductionmentioning

confidence: 99%

Tinnitus with a Normal Audiogram: Physiological Evidence for Hidden Hearing Loss and Computational Model

2011

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Ever since Pliny the Elder coined the term tinnitus, the perception of sound in the absence of an external sound source has remained enigmatic. Traditional theories assume that tinnitus is triggered by cochlear damage, but many tinnitus patients present with a normal audiogram, i.e., with no direct signs of cochlear damage. Here, we report that in human subjects with tinnitus and a normal audiogram, auditory brainstem responses show a significantly reduced amplitude of the wave I potential (generated by primary auditory nerve fibers) but normal amplitudes of the more centrally generated wave V. This provides direct physiological evidence of "hidden hearing loss" that manifests as reduced neural output from the cochlea, and consequent renormalization of neuronal response magnitude within the brainstem. Employing an established computational model, we demonstrate how tinnitus could arise from a homeostatic response of neurons in the central auditory system to reduced auditory nerve input in the absence of elevated hearing thresholds.

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“…Chronic tinnitus is seen in about 65% of patients with SNHL, 5% of patients with mixed hearing loss, and 4% of conductive hearing loss cases. Most of the evidence shows no relationship between the severity of hearing loss and the annoyance generated by the tinnitus, however, it is known that hearing loss and tinnitus can be functionally detrimental to daily life, since they lead to social isolation and communication disturbances, leading to worsening quality of life [13] [14] [15] [16] [17].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Sound Deprivation on Audiologic Outcomes after Cochlear Implantation

Amaral¹,

Reis²,

Pauna³

et al. 2018

IJCM

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The cochlear implant is a prosthesis that is capable to replace listening capability among patients with sensorineural hearing loss. Many studies suggest a negative relationship among duration of sound deprivation and audiometric gain (by means of speech perception test) after cochlear implantation. We evaluated surgical and audiologic results among post-lingual deafened adults, in different times of sound deprivation, and correlated with social isolation, presence of vertigo or tinnitus, and the speech therapy yield, between pre-and post-operative stages. A retrospective study was conducted on patients with post-lingual hearing loss, aged over 18 years old who underwent cochlear implant surgery in a public hospital from 2004 to 2014. Audiological, sociodemographic questionnaire, and manifestations of vertigo and tinnitus, during pre-and post-operative stages, were compared and correlating to the different periods of sound deprivation. Two groups were studied. The group A was composed of 38 participants (14 male and 24 female) with sound deprivation of less than 10 years; and group B was composed of 17 participants (8 male and 9 female) with sound deprivation longer than 10 years. We found no differences regarding age, sex, duration of sound deprivation, mean pure-tone audiometric results (pre-and post-surgery), and speech perception tests (pre-operatively). After one year of the surgery, we observed a significant difference between both groups, with a better performance to group A. The results of speech perception test, after cochlear implantation in group B, were worse than the results obtained in group A, although these correlations are not determinant whether to perform cochlear implant surgery or not.

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Tinnitus in normally hearing patients: clinical aspects and repercussions

Abstract: Patients with tinnitus and normal hearing showed similar characteristics when compared to those with hearing loss. However, the age of the patients and the interference over concentration and emotional status were significantly lower in this group.

Cited by 93 publications

References 14 publications

Mobile Apps for Management of Tinnitus: Users’ Survey, Quality Assessment, and Content Analysis (Preprint)

Mobile Apps for Management of Tinnitus: Users’ Survey, Quality Assessment, and Content Analysis (Preprint)

Tinnitus with a Normal Audiogram: Physiological Evidence for Hidden Hearing Loss and Computational Model

The Influence of Sound Deprivation on Audiologic Outcomes after Cochlear Implantation

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