Document Detail

Predicting hearing thresholds and occupational hearing loss with multiple-frequency auditory steady-state responses.
MedLine Citation:
PMID:  20828512     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: An objective investigation is needed to verify the existence and severity of hearing impairments resulting from work-related, noise-induced hearing loss in arbitration of medicolegal aspects. We investigated the accuracy of multiple-frequency auditory steady-state responses (Mf-ASSRs) between subjects with sensorineural hearing loss (SNHL) with and without occupational noise exposure.
DESIGN: Cross-sectional study.
SETTING: Tertiary referral medical centre.
METHODS: Pure-tone audiometry and Mf-ASSRs were recorded in 88 subjects (34 patients had occupational noise-induced hearing loss [NIHL], 36 patients had SNHL without noise exposure, and 18 volunteers were normal controls).
MAIN OUTCOME MEASURES: Inter- and intragroup comparisons were made. A predicting equation was derived using multiple linear regression analysis.
RESULTS: ASSRs and pure-tone thresholds (PTTs) showed a strong correlation for all subjects (r = .77 ≈ .94). The relationship is demonstrated by the equationThe differences between the ASSR and PTT were significantly higher for the NIHL group than for the subjects with non-noise-induced SNHL (p < .001).
CONCLUSIONS: Mf-ASSR is a promising tool for objectively evaluating hearing thresholds. Predictive value may be lower in subjects with occupational hearing loss. Regardless of carrier frequencies, the severity of hearing loss affects the steady-state response. Moreover, the ASSR may assist in detecting noise-induced injury of the auditory pathway. A multiple linear regression equation to accurately predict thresholds was shown that takes into consideration all effect factors.
Ruey-Fen Hsu; Chi-Kung Ho; Sheng-Nan Lu; Shun-Sheng Chen
Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Journal of otolaryngology - head & neck surgery = Le Journal d'oto-rhino-laryngologie et de chirurgie cervico-faciale     Volume:  39     ISSN:  1916-0216     ISO Abbreviation:  J Otolaryngol Head Neck Surg     Publication Date:  2010 Oct 
Date Detail:
Created Date:  2010-09-10     Completed Date:  2011-02-01     Revised Date:  2013-04-10    
Medline Journal Info:
Nlm Unique ID:  101479544     Medline TA:  J Otolaryngol Head Neck Surg     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  504-10     Citation Subset:  IM    
Departments of Otolaryngology and Occupational Medicine, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Kaohsiung, Taiwan.
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MeSH Terms
Acoustic Stimulation / methods*
Aged, 80 and over
Audiometry, Pure-Tone
Auditory Pathways / physiopathology*
Auditory Threshold / physiology*
Cross-Sectional Studies
Disease Progression
Hearing Loss, Noise-Induced / diagnosis*,  physiopathology
Middle Aged
Noise, Occupational / adverse effects*
Occupational Diseases / diagnosis*,  physiopathology
Predictive Value of Tests
Retrospective Studies
Severity of Illness Index
Young Adult

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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