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Randomized Controlled Trial
. 2014 Jul 23:18:2331216514542657.
doi: 10.1177/2331216514542657.

The influence of sound generator associated with conventional amplification for tinnitus control: randomized blind clinical trial

Gisele Munhoes dos Santos  1 , Ricardo Ferreira Bento  2 , Italo Roberto Torres de Medeiros  2 , Jeanne Oiticcica  2 , Eleonora Csipai da Silva  2 , Silvio Penteado  2
Affiliations
Randomized Controlled Trial

The influence of sound generator associated with conventional amplification for tinnitus control: randomized blind clinical trial

Gisele Munhoes dos Santos et al. Trends Hear. .

Abstract

Hearing aids with an integrated sound generator have been used to enhance the treatment of tinnitus. The main aim of this study was to verify whether the combined use of amplification and sound generator is more effective than conventional amplification alone in reducing tinnitus annoyance by means of the use of a new hearing aid with an integrated sound generator. A total of 49 patients underwent a blind randomized clinical trial. Tinnitus annoyance was measured by Tinnitus Handicap Inventory and numerical scales, and psychoacoustic measures of tinnitus were also performed. The sound generator was set at the lowest intensity capable of providing relief from tinnitus. Results showed that 62.5% of the patients presented a reduction in tinnitus annoyance in the combined fitting group and in the group with amplification alone, 78% showed a reduction. This difference between the groups was not statistically significant.

Trial registration: ClinicalTrials.gov NCT01857661.

Keywords: hearing aids; sound generator; tinnitus.

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Figures

Figure 1.
Figure 1.
Scatter plot of the numeric scale and minimum masking level variables and line of adjusted model after intervention.
Figure 2.
Figure 2.
Scatter plot of the tinnitus loudness and minimum masking level and line of adjusted model after intervention.
Figure 3.
Figure 3.
Scatter plot of the dispersion between the variables THI and minimum masking level (dB HL) and adjusted model after intervention. Note. THI = Tinnitus Handicap Inventory.
See this image and copyright information in PMC

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