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Added High-Frequency Gain in Dichotic Digits Test for High-Frequency Sensorineural Hearing Loss

Overview

About this study

The purpose of this study is to determine if adding high-frequency gain to the Dichotic Digits Test result in changes in test performance (i.e., is there an effect of providing a high-frequency gain boost to the Dichotic Digits Test when administered to individuals with mild to moderate high-frequency sensorineural hearing loss). Additionally, to determine if there is a relationship between the degree of score change (score of Dichotic Digits Test with high-frequency gain minus score of Dichotic Digits Test without added gain) and performance on the Quick Speech-in-Noise (QuickSIN) test.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria:

  • Aged 40-85 years
  • Normal otologic history (no history of chronic outer and/or middle ear disorder)
  • Normal otoscopy
  • Type A tympanograms in both ears
  • Pure-tone audiometric thresholds of 25 dB HL or better from 250 Hz through 1000 Hz
  • Sloping to mild and/or moderate sensorineural hearing loss from 2000 Hz through 4000 Hz
  • Symmetrical hearing sensitivity (not more than one contiguous frequency with thresholds differing by 15 or more dB between ears)
  • Reported difficulty hearing and understanding speech in noisy listening environments

Exclusion Criteria:

  • Aged younger than 40 years or older than 85 years
  • History of chronic outer and/or middle ear disorder
  • Current outer and/or middle ear disorder
  • Abnormal tympanograms (middle ear pressure, tympanic membrane compliance, and/or ear canal volume)
  • Types, degrees, and configurations of other than symmetrical mild to moderate high-frequency sensorineural hearing loss
  • No reported difficulty hearing and understanding speech in noisy listening environments.

Note: Other protocol defined Inclusion/Exclusion Criteria may apply.

Eligibility last updated 3/26/2024. Questions regarding updates should be directed to the study team contact.

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status Contact

Scottsdale/Phoenix, Ariz.

Mayo Clinic principal investigator

Jennifer Gonzalez, Au.D., Ph.D.

Open for enrollment

Contact information:

Jennifer Gonzalez Au.D., Ph.D.

Gonzalez.Jennifer@mayo.edu

More information

Publications

Publications are currently not available

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