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Neuro-otological findings in tinnitus patients with normal hearing

Published online by Cambridge University Press:  11 December 2009

C Morales-Garcia ,
G Quiroz ,
J M Matamala  and
C Tapia
C Morales-Garcia*
Affiliation:
Department of Neuro-Otology, University of Chile School of Medicine, Salvador Hospital, Santiago, Chile
G Quiroz
Affiliation:
Department of Neuro-Otology, University of Chile School of Medicine, Salvador Hospital, Santiago, Chile
J M Matamala
Affiliation:
Department of Neuro-Otology, University of Chile School of Medicine, Salvador Hospital, Santiago, Chile
C Tapia
Affiliation:
Department of Otolaryngology, University of Chile School of Medicine, Salvador Hospital, Santiago, Chile
*
Address for correspondence: Dr Carlos Morales-Garcia, Luis Thayer Ojeda Norte 0115-Of 705, Santiago 9, Chile. Fax: (56 2) 232 2763 E-mail: [email protected]
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Abstract

Introduction:

Tinnitus is usually associated with hearing loss, and patients with tinnitus and normal hearing are unusual. Neuro-otological findings have not previously been described in tinnitus patients with normal hearing.

Aim:

To analyse neuro-otological examination results from a group of tinnitus patients with normal hearing.

Materials and methods:

Seventeen normal-hearing tinnitus patients seen over a 10-year period were retrospectively evaluated. Their results were compared with those of a control group of 17 normal subjects without tinnitus.

Results:

The main neuro-otological finding in the tinnitus patients was caloric test abnormality: a unilateral canal paresis was present in 15 of the 17 patients. Caloric tests were normal in 15 of the 17 control subjects.

Conclusion:

We may infer from these results that tinnitus could be the only clinical manifestation of a cochlear – and presumably cochleo-vestibular – lesion, and that unilateral canal paresis may be the only abnormal finding on neuro-otological examination.

Keywords

TinnitusVestibular Function TestsHearing
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 124 , Issue 5 , May 2010 , pp. 474 - 476
Copyright
Copyright © JLO (1984) Limited 2009

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References

1Eggermont, JJ. Tinnitus: neurobiological substrates. Drug Discov Today 2005;10:1283–90CrossRefGoogle ScholarPubMed
2Dobie, RA. Depression and tinnitus. Otolaryngol Clin North Am 2003;36:383–8CrossRefGoogle ScholarPubMed
3Adams, PF, Hendershot, GE, Marano, MA. Current estimates from the National Health Interview Survey, 1996. Vital Health Stat 1999;10:1–203Google Scholar
4Axelsson, A, Sandh, A. Tinnitus in noise-induced hearing loss. Br J Audiol 1985;19:271–6CrossRefGoogle ScholarPubMed
5Chung, DY, Gannon, RP, Mason, K. Factors affecting the prevalence of tinnitus. Audiology 1984;23:441–52CrossRefGoogle ScholarPubMed
6Reed, GF. An audiometric study of two hundred cases of subjective tinnitus. Arch Otolaryngol 1960;71:74–84CrossRefGoogle ScholarPubMed
7Barnea, G, Attias, J, Gold, S, Shahar, A. Tinnitus with normal hearing sensitivity: extended high-frequency audiometry and auditory nerve brain-stem-evoked responses. Audiology 1990;29:36–45CrossRefGoogle ScholarPubMed
8Satar, B, Kapkin, O, Ozkaptan, Y. Evaluation of cochlear function in patients with normal hearing and tinnitus: a distortion product otoacoustic emission study. Kulak Burun Bogaz Ihtis Derg 2003;10:177–82Google ScholarPubMed
9Sanchez, TG. Tinnitus: a Correlation Study Between ABR and Electrophysiological and Tonal Thresholds [in Portuguese]. Sao Paulo: University of Sao Paulo School of Medicine, 1997Google Scholar
10Nieschalk, M, Hustert, B, Stoll, W. Auditory reaction times in patients with chronic tinnitus with normal hearing. Am J Otol 1998;19:611–18Google ScholarPubMed
11Cai, Y, Tang, J, Li, X. Relationship between high frequency hearing threshold and tinnitus [in Chinese]. Lin Chuang Er Bi Yan Hou Ke Za Zhi 2004;18:8–11Google ScholarPubMed
12Ochi, K, Kinoshita, H, Kenmochi, M, Nishino, H, Ohashi, T. Zinc deficiency and tinnitus. Auris Nasus Larynx 2003;30:525–8CrossRefGoogle ScholarPubMed
13Sanchez, TG, Medeiros, IRT, Levy, CPD, Ramalho, JRO, Bento, RF. Tinnitus in normally hearing patients: clinical aspects and repercussions. Rev Bras Otorrinolaringol 2005;71:427–31CrossRefGoogle ScholarPubMed
14Fitzgerald, G, Hallpike, CS. Studies in human vestibular function: I. Observations on directional preponderance (Nystagmusbereitchäft) resulting from cerebral lesions. Brain 1942;65:115–37CrossRefGoogle Scholar
15Morales-García, C, Hood, JD. Tone decay test in neuro-otological diagnosis. Arch Otolaryngol 1972;96:231–47CrossRefGoogle ScholarPubMed
16Sörensen, H. Clinical application of continuous threshold recording. Acta Otolaryngol 1962;54:403–22CrossRefGoogle ScholarPubMed
17Schuknecht, HF, Woellner, RC. Hearing losses following partial section of cochlear nerve. Laryngoscope 1953;63:441–65CrossRefGoogle ScholarPubMed