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Original Articles

The relationship between tinnitus pitch and the audiogram

, , , , &
Pages 277-294 | Received 13 Aug 2007, Published online: 13 Aug 2009
 

Abstract

We studied the relationship between tinnitus pitch and the audiogram in 195 patients. Patients with tone-like tinnitus reported a higher pitch (mean = 5385 Hz) compared to those with a noise-like quality (mean = 3266 Hz). Those with a flat audiogram were more likely to report: a noise-like tinnitus, a unilateral tinnitus, and have a pitch < 2000 Hz. The average duration of bilateral tinnitus (12 years) was longer than that of unilateral tinnitus (5 years). Older subjects reported a less severe tinnitus handicap questionnaire score. Patients with a notched audiogram often reported a pitch ≤8000 Hz. Subjects with normal hearing up to 8000 Hz tended to have a pitch ≥8000 Hz. We failed to find a relationship between the pitch and the edge of a high frequency hearing loss. Some individuals did exhibit a pitch at the low frequency edge of a hearing loss, but we could find no similar characteristics among these subjects. It is possible that a relationship between pitch and audiogram is present only in certain subgroups.

Abbreviations
THQ=

Tinnitus Handicap Questionnaire

Abbreviations
THQ=

Tinnitus Handicap Questionnaire

Sumario

Estudiamos la relación entre el tono del acufeno y el audiograma en 195 pacientes. Pacientes con un acufeno parecido a un tono reportaron una altura tonal mayor (media =5385 Hz) comparados con aquellos con un acúfeno de tipo ruido. Aquellos con un audiograma plano reportaron con más frecuencia: un acufeno tipo ruido, un acufeno unilateral y uno con un tono <2000Hz. El promedio de duración del acufeno bilateral (12 años) fue mayor que el del unilateral (5 años). Las personas mayores reportaron una calificación menor en el cuestionario de discapacidad ocasionada por el acufeno. Los pacientes con una muesca en el audiograma frecuentemente reportaron un tono del acufeno ≤8000 Hz. Los sujetos con una audición normal hasta 8000Hz tendían a presentar un tono ≥8000 Hz. No pudimos encontrar una relación entre el tono del acufeno y el borde de una hipoacusia de frecuencias agudas. Algunos individuos sí mostraron un acufeno en el límite de las frecuencias graves, pero no pudimos encontrar características similares entre estos sujetos. Es posible que la relación entre el tono y los audiogramas esté presente sólo en algunos subgrupos.

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