Electrocochleography used as a clinical hearing test in difficult-to-test children.

Abstract:

:Thirty difficult-to-test children have been tested with transtympanic ECoG. When possible, informal hearing tests and/or free-field testing were performed. Children in whom no action potential (AP) could be recorded were submitted to conventional radiography of the inner ear, and vestibular tests. The correlation between free-field test thresholds and AP "thresholds" was good, especially in subjects with relatively good hearing. Response amplitude increased, and latency decreased, with increasing frequency of the stimulus implying that different parts of the basilar membrane are stimulated according to the frequency of the stimulus. Input-output curves of response amplitude and latency were plotted, and three different types were distinguished. ECoG can contribute to the evaluation of peripheral hearing in difficult-to-test children, and vestibular tests should always be performed on a child with suspected deafness or sensorineural hearing loss. Conventional radiography of the inner ear, however, seems to be of little value.

journal_name

Acta Otolaryngol

journal_title

Acta oto-laryngologica

authors

Bergholtz LM,Arlinger SD,Kylén P,Jerlvall LB

doi

10.3109/00016487709123981

subject

Has Abstract

pub_date

1977-11-01 00:00:00

pages

385-92

issue

5-6

eissn

0001-6489

issn

1651-2251

journal_volume

84

pub_type

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