Central Auditory Processing and the Use of Hearing Aids (CAPHA)

Jong Woo Chung

Status: Completed

Conditions: Auditory Processing Disorder, Central

Treatments: Device: Hearing aids

Study type: Interventional

Funder types: Other

Identifiers

NCT01897181

AMC-2013-0455

Details and patient eligibility

About

The purpose of this study is to evaluate the central auditory processing in patients with bilateral sensorineural hearing loss and to observe the change of the central auditory processing ability after using hearing aids.

Full description

Screening for recruiting

• Among patients who are visiting for hearing disturbance, patients with bilateral sensorineural hearing loss will be included after audiologic tests, history taking and physical examination.
• audiologic tests: pure tone audiometry, speech audiometry, impedence audiometry, distortion product otoacoustic emission, auditory brainstem response.

Dividing into "Hearing aids" group and "No hearing aids" group

• The use of hearing aids will be recommended to all included patients.
• Hearing aids group: patients who want to be prescribed hearing aids (28 subjects)
• No hearing aids group: patients who do not want to be prescribed hearing aids (28 subjects)

Audiologic test

• Hearing in noise test (HINT), central auditory processing disorder test
• at screening, 1, 3, 6, 9 and 12 months after starting hearing aids use

Enrollment: 27 patients

Sex: All

Ages: 45+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Adults of age 45 years of older
• Bilateral sensorineural hearing loss
• Average pure tone audiometry threshold >= 40dB
• Speech discrimination >= 60% in both ears

Exclusion criteria

• Refusing the study
• Medical history of any brain damage or intracranial surgery
• Showing signs of central lesion in MRI or neurologic exams
• Speech discrimination < 60% in any ear

Trial design

Primary purpose: Diagnostic

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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27 participants in 2 patient groups

Hearing aids

Active Comparator group

Description:

Patients who agree to use hearing aids

Treatment:

Device: Hearing aids

No hearing aids

No Intervention group

Description:

Patients who did not agree to use hearing aids