Use of abr threshold and oaes in detection of noise induced hearing loss

Rachel Fraenkel, Sharon Freeman, Haim Sohmer

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

Objective: To determine which measure is the most sensitive to noise induced hearing loss (NIHL): auditory nerve brainstem response (ABR), distortion product otoacoustic emission (DPOAE) or transient evoked otoacoustic emission (TEOAE), and how to assess possible changes in these responses. Subjects & Methods: Four groups of rats were exposed to various durations of 113 dB SPL broadband noise: 5 or 10 minutes (temporary changes in cochlear function), and 3 or 4 hours (permanent changes). Group means and data from individual animals were compared before and after exposure. Results: Mean group DPOAE amplitude reduction showed no clear advantage over mean ABR threshold elevation in detection of temporary and permanent NIHL. Data from individual rats, however, indicated a clinical advantage for DPOAEs in detecting slight temporary, but not permanent, changes. TEOAEs were more sensitive in detecting changes in individual rats than as a group measure. Conclusions: TEOAE and DPOAE monitoring may improve detection of NIHL, though it should be used in conjunction with audiometric threshold monitoring.

Original languageEnglish
Pages (from-to)95-118
Number of pages24
JournalJournal of Basic and Clinical Physiology and Pharmacology
Volume14
Issue number2
DOIs
StatePublished - 2003

Keywords

  • ABR
  • DPOAE
  • hearing loss
  • noise
  • PTS
  • rat
  • TEOAE
  • TTS

Fingerprint

Dive into the research topics of 'Use of abr threshold and oaes in detection of noise induced hearing loss'. Together they form a unique fingerprint.

Cite this