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Revista de otorrinolaringología y cirugía de cabeza y cuello

versión On-line ISSN 0718-4816

Resumen

MORALES G, Carlos; QUIROZ Z, Gonzalo; MATAMALA C, José Manuel  y  TAPIA M, Carlos. Neuro-otological findings in tinnitus patients with normal standard audiometry. Rev. Otorrinolaringol. Cir. Cabeza Cuello [online]. 2009, vol.69, n.1, pp.13-18. ISSN 0718-4816.  http://dx.doi.org/10.4067/S0718-48162009000100003.

Introduction: Patients presenting with tinnitus and normal hearing are not frequent. There are no reports in the literature about vestibular test findings in these patients. Aim: To analyze the cochleovestibular clinical examination findings in a group of patients with tinnitus and normal hearing (standard pure-tone audiometry). Material and Method: Retrospective study in a group of 17 patients presenting with tinnitus and normal hearing over a period of 10 years. The results are compared with those from a control group of 17 individuals without tinnitus and with normal hearing. Results: In the tinnitus group, standard pure-tone audiometry was normal; in most of them (n =15) vestibular testing evidenced a unilateral vestibular paralysis on the caloric test. In contrast, in the control group, the majority (n=15) had a normal caloric test; with only two of them presenting unilateral vestibular paralysis. Conclusion: We hypothetize that, in the group of patients studied, tinnitus is the sole symptom of a "subclinic" cochleovestibular lesion, which would be evident only as a vestibular paralysis.

Palabras clave : Tinnitus; normal hearing; vestibular paralysis.

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