Mai Mohamed El Ghazaly, Esraa Mahmoud Mohamed Meckawy, Hesham Saad Kozou, Doaa Mohamed Elmoazen
{"title":"双侧对称型与非对称型感音神经性听力损失的言语辨别与双耳加工。","authors":"Mai Mohamed El Ghazaly, Esraa Mahmoud Mohamed Meckawy, Hesham Saad Kozou, Doaa Mohamed Elmoazen","doi":"10.1016/j.otoeng.2025.512265","DOIUrl":null,"url":null,"abstract":"<p><strong>Purpose: </strong>To investigate the effects of symmetric and asymmetric sensorineural hearing loss (SSNHL and ASNHL) on speech discrimination abilities and binaural processing, including integration and interaction.</p><p><strong>Materials and methods: </strong>This cross-sectional study included 36 adult patients with bilateral sensorineural hearing loss, divided into two groups based on the symmetry of their hearing loss: ASNHL and SSNHL. Speech discrimination abilities were evaluated using the maximum speech discrimination score (SDSmax) with Arabic monosyllabic words. Binaural integration was assessed using the free-recall double dichotic digit test (DDT), while binaural interaction was evaluated through the binaural fusion test (BFT).</p><p><strong>Results: </strong>The SDSmax of the worse-hearing ear in ASNHL patients (48.89 ± 10.13%) was significantly lower than in SSNHL patients (69.33 ± 7.97%) with comparable degrees of hearing loss. ASNHL patients exhibited a greater disparity between the better and worse-hearing ears in DDT scores (53.15 ± 13.98%) compared to SSNHL patients (22.96 ± 5.93%). Additionally, the BFT scores in ASNHL patients (55.14 ± 13.30%) were significantly lower than in SSNHL patients (72.92 ± 12.55%).</p><p><strong>Conclusions: </strong>ASNHL patients experience greater impairments in speech discrimination, binaural integration, and interaction compared to SSNHL patients. These differences likely stem from auditory deprivation and asymmetry-induced deficits. Developing tailored hearing rehabilitation strategies is critical to addressing the unique challenges posed by asymmetric hearing loss.</p>","PeriodicalId":93855,"journal":{"name":"Acta otorrinolaringologica espanola","volume":" ","pages":"512265"},"PeriodicalIF":0.0000,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Speech discrimination and binaural processing in bilateral symmetric vs. asymmetric sensorineural hearing loss.\",\"authors\":\"Mai Mohamed El Ghazaly, Esraa Mahmoud Mohamed Meckawy, Hesham Saad Kozou, Doaa Mohamed Elmoazen\",\"doi\":\"10.1016/j.otoeng.2025.512265\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Purpose: </strong>To investigate the effects of symmetric and asymmetric sensorineural hearing loss (SSNHL and ASNHL) on speech discrimination abilities and binaural processing, including integration and interaction.</p><p><strong>Materials and methods: </strong>This cross-sectional study included 36 adult patients with bilateral sensorineural hearing loss, divided into two groups based on the symmetry of their hearing loss: ASNHL and SSNHL. Speech discrimination abilities were evaluated using the maximum speech discrimination score (SDSmax) with Arabic monosyllabic words. Binaural integration was assessed using the free-recall double dichotic digit test (DDT), while binaural interaction was evaluated through the binaural fusion test (BFT).</p><p><strong>Results: </strong>The SDSmax of the worse-hearing ear in ASNHL patients (48.89 ± 10.13%) was significantly lower than in SSNHL patients (69.33 ± 7.97%) with comparable degrees of hearing loss. ASNHL patients exhibited a greater disparity between the better and worse-hearing ears in DDT scores (53.15 ± 13.98%) compared to SSNHL patients (22.96 ± 5.93%). Additionally, the BFT scores in ASNHL patients (55.14 ± 13.30%) were significantly lower than in SSNHL patients (72.92 ± 12.55%).</p><p><strong>Conclusions: </strong>ASNHL patients experience greater impairments in speech discrimination, binaural integration, and interaction compared to SSNHL patients. These differences likely stem from auditory deprivation and asymmetry-induced deficits. Developing tailored hearing rehabilitation strategies is critical to addressing the unique challenges posed by asymmetric hearing loss.</p>\",\"PeriodicalId\":93855,\"journal\":{\"name\":\"Acta otorrinolaringologica espanola\",\"volume\":\" \",\"pages\":\"512265\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2025-06-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Acta otorrinolaringologica espanola\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1016/j.otoeng.2025.512265\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta otorrinolaringologica espanola","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1016/j.otoeng.2025.512265","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Speech discrimination and binaural processing in bilateral symmetric vs. asymmetric sensorineural hearing loss.
Purpose: To investigate the effects of symmetric and asymmetric sensorineural hearing loss (SSNHL and ASNHL) on speech discrimination abilities and binaural processing, including integration and interaction.
Materials and methods: This cross-sectional study included 36 adult patients with bilateral sensorineural hearing loss, divided into two groups based on the symmetry of their hearing loss: ASNHL and SSNHL. Speech discrimination abilities were evaluated using the maximum speech discrimination score (SDSmax) with Arabic monosyllabic words. Binaural integration was assessed using the free-recall double dichotic digit test (DDT), while binaural interaction was evaluated through the binaural fusion test (BFT).
Results: The SDSmax of the worse-hearing ear in ASNHL patients (48.89 ± 10.13%) was significantly lower than in SSNHL patients (69.33 ± 7.97%) with comparable degrees of hearing loss. ASNHL patients exhibited a greater disparity between the better and worse-hearing ears in DDT scores (53.15 ± 13.98%) compared to SSNHL patients (22.96 ± 5.93%). Additionally, the BFT scores in ASNHL patients (55.14 ± 13.30%) were significantly lower than in SSNHL patients (72.92 ± 12.55%).
Conclusions: ASNHL patients experience greater impairments in speech discrimination, binaural integration, and interaction compared to SSNHL patients. These differences likely stem from auditory deprivation and asymmetry-induced deficits. Developing tailored hearing rehabilitation strategies is critical to addressing the unique challenges posed by asymmetric hearing loss.