A possible masking effect of tinnitus. Evaluation of CNV audiometry.

A possible masking effect of tinnitus. Evaluation of CNV audiometry. Research Abstract Details 

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A possible masking effect of tinnitus. Evaluation of CNV audiometry. Abstract Text:

Y Hosoda,K Ushiro,T Doi,T Kumazawa,

To determine whether tinnitus has a masking effect similar to that of general external sounds, the hearing threshold shift when the tinnitus was changed by intravenous administration of lidocaine was measured by contingent negative variation (CNV) audiometry. In a preliminary study, the reliability of CNV audiometry was evaluated in 12 patients with tinnitus. The reproducibility of CNV audiometry was confirmed, based on repeated measurements of CNV audiometry at the tinnitus frequency. The threshold difference between CNV audiometry and pure tone audiometry was -0.76 +/- 1.35 dB, and a high statistical correlation between the threshold of CNV audiometry and pure tone audiometry was evident. The CNV threshold shift at tinnitus frequency after lidocaine injection was measured in 89 ears. In the tinnitus-decreased group, the CNV threshold decreased (4-6 dB) in 22% of cases; however, in the tinnitus-unchanged group, the CNV threshold was little changed. These findings suggest that tinnitus may have a masking effect as is the case with external sounds.

A possible masking effect of tinnitus. Evaluation of CNV audiometry. Publishing Authors By Initials

Y Hosoda,K Ushiro,T Doi,T Kumazawa,

For similar otorhinolaryngologic diseases: ear diseases: hearing disorders: tinnitus research abstracts see: otorhinolaryngologic diseases: ear diseases: hearing disorders: tinnitus research

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A possible masking effect of tinnitus. Evaluation of CNV audiometry. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Acta oto-laryngologica. Supplementum

VOLUME: 500

Page Numbers: 23-5

Journal Abbreviation:

ISSN: 0365-5237

DAY: 13

MONTH: 02

YEAR: 1993

A possible masking effect of tinnitus. Evaluation of CNV audiometry. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 370355

A possible masking effect of tinnitus. Evaluation of CNV audiometry. Keywords Mesh Terms:

KEYWORDS: Tinnitus

MESH TERMS: physiopathology

Chemical & Substance for Abstract: A possible masking effect of tinnitus. Evaluation of CNV audiometry. Information

Substance Name: Lidocaine

Registry Number: 137-58-6

Grant and Affiliation Information for A possible masking effect of tinnitus. Evaluation of CNV audiometry.

AFFILIATION: Department of Otolaryngology, Kansai Medical University, Osaka, Japan.

Country: SWEDEN

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MEDLINETA: Acta Otolaryngol Suppl

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