Broadband Amplification as Tinnitus Treatment

Technical University of Denmark

Status: Completed

Conditions: Tinnitus, Subjective

Treatments: Device: Broadband amplification from hearing aids; Device: Band-limited amplification from hearing aids

Study type: Interventional

Funder types: Other

Identifiers

NCT05271825

766041

Details and patient eligibility

About

• The effect of broadband amplification was tested in a double-blinded crossover study
• Its effect was compared to an active placebo treatment
• An improvement in tinnitus distress was found after use of broadband amplification
• No effect was found on the tinnitus loudness

Full description

This study investigated the effect of broadband amplification (125 Hz to 10 kHz) as tinnitus treatment for participants with high-frequency hearing loss and compared these effects with an active placebo condition using band-limited amplification (125 Hz to 3-4 kHz). A double-blinded crossover study. 23 participants with a high-frequency (≥ 3 kHz) hearing loss and chronic tinnitus were included in the study and 17 completed the full treatment protocol. Two different hearing aid treatments were provided for 3 months each: broadband amplification that provided gain in the frequency range from 125 Hz to 10 kHz and band-limited amplification that only provided gain in the low frequency range (≤ 3-4 kHz). The effect of the two treatments on tinnitus distress was evaluated with the Tinnitus Handicap Inventory (THI) and the Tinnitus Functional Index (TFI) questionnaires. The effect of the treatment on tinnitus loudness was evaluated with a visual analog scale (VAS) for loudness and a psychoacoustic loudness measure. Furthermore, the tinnitus annoyance was evaluated with a VAS for annoyance. The tinnitus pitch was evaluated based on the tinnitus likeness spectrum.

Enrollment: 23 patients

Sex: All

Ages: 18 to 90 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Chronic tinnitus
• hearing thresholds (<=25 dB HL) up to 2000 Hz and hearing loss at frequencies above 2 kHz
• inexperienced hearing aid user

Exclusion criteria

• objective or pulsatile tinnitus
• Ménière's disease, otosclerosis, stapedectomy, stapedotomy or tympanoplasty

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Double Blind

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23 participants in 2 patient groups, including a placebo group

Broadband amplification

Experimental group

Description:

broadband amplification: (125 Hz to 10 kHz)

Treatment:

Device: Broadband amplification from hearing aids

Band-limited amplification

Placebo Comparator group

Description:

band-limited amplification (125 Hz to 3-4 kHz)

Treatment:

Device: Band-limited amplification from hearing aids