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Grason-Stadler - January 2018

How Can I Identify Cochlear Dead Regions in My Patients Who Have Hearing Loss?

Karen Morris, MS, CCC-A

November 19, 2018

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Question

How can I identify cochlear dead regions in my patients who have hearing loss?

Answer

The TEN Test was designed to identify cochlear dead regions. A dead region is a complete loss of function of the inner hair cells over a specific frequency region and should be suspected when hearing loss is greater than 60 to 70 dB. During audiometry, when intensity levels become a high enough, it is possible for the pure tone to stimulate the good areas within the same cochlea. If the patient responds to the tone however, that is not the true hearing threshold. The purpose of the TEN Test is the identify when this is happening - TEN stands for Threshold Equalization Noise. When the TEN noise is presented along with the pure tone, it is possible to identify a dead region. This test is integrated into the GSI AudioStar Pro and with the GSI Pello that includes the Special Test license. This may be performed easily when a dead region is suspected. 

For more information, please visit www.grason-stadler.com and the GSI Expo on AudiologyOnline.


karen morris

Karen Morris, MS, CCC-A

Clinical Application Specialist/Product Management

Karen received her Master's degree in Audiology from Purdue University.  She has an extensive clinical background that includes evoked potentials, vestibular assessment and hearing aid fittings.  For over 10 years, she has worked in the industry in a variety of roles including customer support for an evoked potential manufacturer and as the Manager of Audiology Education for a large international equipment company. At GSI, Karen divides her time between application support for customers and distributors and product management.


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