Quality of Life and Auditory Performance in Adults with Asym
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Binaural hearing is the normal hearing process used to localize sounds and may also serve to aid the segregation of speech from noise backgrounds in adverse listening conditions. The study shows that asymmetric hearing loss (AHL) subjects have binaural hearing deficits that present a handicap to their everyday quality of life.

Investigators evaluated the relationship between binaural hearing deficits and quality of life. The study included 49 adults with asymmetric hearing loss (AHL), and 11 adult normal-hearing listeners (NHL) served as controls. Speech reception thresholds (SRT) were assessed with the French Matrix Test. Quality of life was evaluated with the Speech, Spatial, and Qualities of Hearing Scale (SSQ) and the Glasgow Health Status Inventory.

Speech recognition in noise was significantly poorer for AHL subjects [-0.12 dB signal-to-noise ratio (SNR) in dichotic (with speech presented to the poorer ear and noise to the better ear), -1.72 dB in diotic and -6.84 dB in reverse-dichotic conditions] compared to NHL (-4.98 dB in diotic and -9.58 dB in dichotic conditions).

Scores for quality-of-life questionnaires were significantly below norms. Significant correlations were found between the SRT for the dichotic condition and the SSQ total score, and pure-tone average thresholds for both groups.

In particular, this study supports the need for therapeutic solutions for AHL subjects.

Audiology and Neurotology
Source: https://doi.org/10.1159/000380746
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