scholarly journals Auditory Steady-State Response Thresholds in Adults With Conductive and Mild to Moderate Sensorineural Hearing Loss

2014 ◽  
Vol 17 (1) ◽  
Author(s):  
Reza Hosseinabadi ◽  
Sadegh Jafarzadeh
Keyword(s):  
Hearing Loss ◽  
Steady State ◽  
Sensorineural Hearing Loss ◽  
Sensorineural Hearing ◽  
Steady State Response ◽  
State Response ◽  
Auditory Steady State Response ◽  
Response Thresholds

Validation of multi-channel auditory steady-state response in adults with sensorineural hearing loss

2008 ◽  
Vol 123 (1) ◽  
pp. 38-44 ◽  
Author(s):  
Y-H Lin ◽  
P-R Chen ◽  
C-J Hsu ◽  
H-P Wu
Keyword(s):  
Hearing Loss ◽  
Steady State ◽  
Sensorineural Hearing Loss ◽  
Pure Tone ◽  
Sensorineural Hearing ◽  
Steady State Response ◽  
Academic Medical Centre ◽  
State Response ◽  
Auditory Steady State Response ◽  
Response Thresholds

AbstractObjective:For various medico-legal and financial reasons, some patients may clinically demonstrate an exaggerated hearing loss that varies in degree, nature and laterality. The purpose of this study was to evaluate whether multi-channel auditory steady-state response measurement can be used as an objective test of auditory thresholds in adults with sensorineural hearing loss.Study design and setting:This was a prospective, comparative, experimental research design study conducted in an academic medical centre. From January to June 2007, 142 subjects (284 ears) with varying degrees of sensorineural hearing loss were included. Four commonly used frequencies (500, 1000, 2000 and 4000 Hz) were evaluated. Both pure tone thresholds and multi-channel auditory steady-state response thresholds were obtained for each ear in all subjects. The correlation of auditory steady-state response thresholds and pure tone thresholds was assessed. The time taken for multi-channel auditory steady-state response testing was also recorded.Results:Results for multi-channel auditory steady-state response thresholds and pure tone thresholds were compared for each test frequency. A difference of less than 15 dB was found in 71 per cent of patients, while a difference of less than 20 dB was found in 83 per cent. Correlation between auditory steady-state response thresholds and pure tone thresholds, expressed as the correlation coefficient (r), was 0.89, 0.95, 0.96 and 0.97 at 500, 1000, 2000 and 4000 Hz, respectively. The strength of the relationship between auditory steady-state response thresholds and pure tone thresholds increased with increasing frequency and increasing degree of hearing loss. The recorded auditory steady-state response thresholds were used to calculate regression lines predicting pure tone threshold results. The mean estimated pure tone thresholds calculated from these regression lines were all within 10 dB of the actual recorded pure tone thresholds. The average multi-channel auditory steady-state response test duration was 42 minutes per patient.Conclusion:Measurement of multi-channel auditory steady-state response could be a powerful, convenient electro-physiological examination with which to objectively certify clinical hearing impairment in adults.

scholarly journals A case report of absent auditory steady-state responses in an elderly person with moderate sensorineural hearing loss

2020 ◽  
Author(s):  
Sadegh Jafarzadeh
Keyword(s):  
Hearing Loss ◽  
Case Report ◽  
Steady State ◽  
Sensorineural Hearing Loss ◽  
Elderly Person ◽  
Sensorineural Hearing ◽  
Steady State Response ◽  
Auditory Thresholds ◽  
State Response ◽  
Auditory Steady State Response

Background: Auditory steady-state response (ASSR) is a test for the estimation of auditory thresholds. It is used in infants, children, and adults. This case report presented unusual ASSR results in an elderly person. The Case: Pure tone and speech audiometry, tympanometry and acoustic reflexes showed a moderate sensorineural hearing loss in both ears. However, the patient did not respond in the ASSR test to different carrier frequencies with frequency modulations of 40 and 80 Hz. Conclusion: To date, the results of the different effects of the aging process obtained from ASSR responses have been reported. However, the absence of any response in the ASSR test has never been reported. The patient in this case report may have these results because of a neural deficit. Keywords: Sensorineural hearing loss; aging; auditory steady-state response

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