Status:
COMPLETED
Efficacy of Digital Noise Reduction Strategies: A Hearing Aid Trial
Lead Sponsor:
US Department of Veterans Affairs
Conditions:
Sensorineural Hearing Loss
Eligibility:
All Genders
18-85 years
Phase:
NA
Brief Summary
The purpose of this study is to see if noise reduction programs in digital hearing aids help patients hear better than hearing aids without these programs. We also want to know if we can predict how s...
Detailed Description
The first goal of this project is to examine the efficacy of digital hearing aids incorporating three noise reduction strategies (i.e., directional microphones alone vs. directional microphones with D...
Eligibility Criteria
Inclusion
- adult onset sensorineural hearing loss
- English as the first language
- bilateral symmetrical sensorineural hearing loss
- Patient is a candidate for directional microphone technology.
- average audiometric thresholds for 500, 1000, 2000, 3000, and 4000 Hz no better than 25-dB HL in either ear.
- no history of hearing aid use in the past 10 years
- appropriate cognitive skills to participate in the study as determined by a passing score on the Mini Mental Scale.
- Patient has a local telephone and address.
Exclusion
- evidence of outer ear, middle ear, or retrocochlear pathology
- any threshold from 500 to 2000 Hz exceeds 70-dB HL
- known neurological or psychiatric disorders as determined by chart review
- known comorbid diseases that would prevent completion of the study as determined by chart review
- visual impairment that would interfere with reading the questionnaires
Key Trial Info
Start Date :
June 1 2004
Trial Type :
INTERVENTIONAL
Allocation :
ACTUAL
End Date :
December 1 2006
Estimated Enrollment :
288 Patients enrolled
Trial Details
Trial ID
NCT00261768
Start Date
June 1 2004
End Date
December 1 2006
Last Update
March 23 2010
Active Locations (2)
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1
VA Medical Center, Bay Pines
Bay Pines, Florida, United States, 33708
2
James H. Quillen VA Medical Center
Mountain Home, Tennessee, United States, 37684