Intrasubject test-retest variability in clinical electrocochleography

Peter S. Roland, Jeff Rosenbloom, Mary W Yellin, William L. Meyerhoff

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Seventeen healthy volunteers without a history of auditory or vestibular difficulty and with normal screening audiometry had bilateral (34 ears) electrocochleography performed repeatedly at 1-week intervals. Each subject had from four to seven electrocochleograms performed on each ear. Measurements were made in the external auditory canal using a gold-foil “TIPtrode.” Amplitude and latency for the summating potential (SP) and action potential (AP) were measured and SP/AP ratios were calculated. Averages and standard deviations for amplitude, latency, and SP/AP ratios were computed. The average SP/AP ratio was 0.22 with a standard deviation of 0.06. The range was 0.04 to 0.50, The average difference between the highest and lowest SP/AP ratio for a given individual was 0.155 (i.e., the range 0.03 to 0.31) with a standard deviation of 0.07. These normative data are useful in assessing the results of dehydration electrocochleography and in establishing how much test-retest variation is required to suggest pathology.

Original languageEnglish (US)
Pages (from-to)963-966
Number of pages4
JournalLaryngoscope
Volume103
Issue number9
StatePublished - 1993
Externally publishedYes

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Evoked Response Audiometry
Action Potentials
Ear
Audiometry
Ear Canal
Dehydration
Gold
Healthy Volunteers
Pathology

ASJC Scopus subject areas

  • Otorhinolaryngology

Cite this

Roland, P. S., Rosenbloom, J., Yellin, M. W., & Meyerhoff, W. L. (1993). Intrasubject test-retest variability in clinical electrocochleography. Laryngoscope, 103(9), 963-966.

Intrasubject test-retest variability in clinical electrocochleography. / Roland, Peter S.; Rosenbloom, Jeff; Yellin, Mary W; Meyerhoff, William L.

In: Laryngoscope, Vol. 103, No. 9, 1993, p. 963-966.

Research output: Contribution to journalArticle

Roland, PS, Rosenbloom, J, Yellin, MW & Meyerhoff, WL 1993, 'Intrasubject test-retest variability in clinical electrocochleography', Laryngoscope, vol. 103, no. 9, pp. 963-966.
Roland PS, Rosenbloom J, Yellin MW, Meyerhoff WL. Intrasubject test-retest variability in clinical electrocochleography. Laryngoscope. 1993;103(9):963-966.
Roland, Peter S. ; Rosenbloom, Jeff ; Yellin, Mary W ; Meyerhoff, William L. / Intrasubject test-retest variability in clinical electrocochleography. In: Laryngoscope. 1993 ; Vol. 103, No. 9. pp. 963-966.
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