Speech discrimination impairment of the worse-hearing ear in asymmetric hearing loss. (2nd January 2021)

• Record Type: Journal Article
• Authors: Kurioka, Takaomi; Sano, Hajime; Furuki, Shogo; Yamashita, Taku
• Is Part Of: International journal of audiology. Volume 60:Number 1(2021)
• Page Start: 54
• Page End: 59
• Publication Date: 2021-01-02
• Subjects: Asymmetric hearing loss -- worse hearing ear -- better hearing ear -- maximum speech discrimination score -- speech discrimination; Audiology -- Periodicals; Hearing disorders -- Periodicals; Deafness -- Prevention -- Periodicals; Hearing Disorders -- Periodicals; Hearing -- Periodicals; 617.8
• DOI: 10.1080/14992027.2020.1795282
• Languages: English
• ISSNs: 1499-2027

Abstract

Abstract: Objective: This study aimed to compare the difference in maximum speech discrimination score (SDSmax) of the worse-hearing ear in asymmetric hearing loss (ASHL) patients with that in symmetric hearing loss (SHL) patients. Design: We retrospectively reviewed medical records of patients with suspected hearing loss (HL) who underwent audiometric examinations. Patients were divided into two groups according to the difference in air conduction (AC) threshold between the right and left ears: the SHL group and the ASHL group. Study sample: Of the 102 patients (204 ears), 74 (148 ears) had SHL, and 28 had ASHL. Results: The worse-hearing ear of ASHL patients exhibited a statistically significantly higher AC threshold and lower SDSmax, compared with ears of SHL patients and better-hearing ears of ASHL patients, and SDSmax exhibited a statistically significant negative correlation with AC threshold. The SDSmax was statistically significantly lower in the worse-hearing ear of the ASHL group than in moderate to severe HL ears of the SHL group, even though these groups had comparable AC thresholds. Conclusions: ASHL patients' worse-hearing ear exhibited a lower SDSmax than SHL patients' ears, despite a comparable AC threshold. Management of hearing impairment in ASHL patients should receive more attention.