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Use of the bone conduction ABR Wave I response in determination of cochlear reserve.

Publication ,  Journal Article
Tucci, DL; Ruth, RA; Lambert, PR
Published in: Am J Otol
March 1990

Interest in bone-conducted stimulus auditory brainstem response (BC-ABR) testing has centered around evaluation of cochlear integrity in neonates and in patients who are difficult to evaluate audiometrically. The present study was designed to evaluate the Wave I component of the BC-ABR and to determine the utility of this response in assessment of cochlear reserve. The source of Wave I has been shown to be the distal eighth nerve. It was postulated that the presence or absence of this component would provide ear specific information useful for determination of cochlear integrity. In order to test this hypothesis, patients with a documented unilateral hearing loss were studied. Stimulus presentation was via the Radioear B-70 bone vibrator used in conventional audiometric assessment. Evoked potential responses were recorded at four presentation levels. Subjects had either normal hearing bilaterally or normal hearing in one ear and a mild-to-profound sensorineural hearing loss in the opposite ear. Our data indicate that the Wave I response, when measured in this fashion, is ear specific. Ear specificity was shown to be aided by good waveform morphology, as typically observed in younger subjects, and by a relatively large discrepancy in hearing thresholds between the normal and hearing-impaired ears. This technique may be of value in determination of cochlear reserve in patients with problematic masking dilemmas.

Duke Scholars

Published In

Am J Otol

ISSN

0192-9763

Publication Date

March 1990

Volume

11

Issue

2

Start / End Page

119 / 124

Location

United States

Related Subject Headings

  • Reference Values
  • Otorhinolaryngology
  • Middle Aged
  • Humans
  • Hearing Loss, Sensorineural
  • Evoked Potentials, Auditory
  • Cochlea
  • Bone Conduction
  • Aged
  • Age Factors
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Tucci, D. L., Ruth, R. A., & Lambert, P. R. (1990). Use of the bone conduction ABR Wave I response in determination of cochlear reserve. Am J Otol, 11(2), 119–124.
Tucci, D. L., R. A. Ruth, and P. R. Lambert. “Use of the bone conduction ABR Wave I response in determination of cochlear reserve.Am J Otol 11, no. 2 (March 1990): 119–24.
Tucci DL, Ruth RA, Lambert PR. Use of the bone conduction ABR Wave I response in determination of cochlear reserve. Am J Otol. 1990 Mar;11(2):119–24.
Tucci, D. L., et al. “Use of the bone conduction ABR Wave I response in determination of cochlear reserve.Am J Otol, vol. 11, no. 2, Mar. 1990, pp. 119–24.
Tucci DL, Ruth RA, Lambert PR. Use of the bone conduction ABR Wave I response in determination of cochlear reserve. Am J Otol. 1990 Mar;11(2):119–124.

Published In

Am J Otol

ISSN

0192-9763

Publication Date

March 1990

Volume

11

Issue

2

Start / End Page

119 / 124

Location

United States

Related Subject Headings

  • Reference Values
  • Otorhinolaryngology
  • Middle Aged
  • Humans
  • Hearing Loss, Sensorineural
  • Evoked Potentials, Auditory
  • Cochlea
  • Bone Conduction
  • Aged
  • Age Factors