【摘要】：目的探究耳蝸死區(qū)在感音神經(jīng)性聽力損失(sensorineural hearing loss,SNHL)患者中的存在情況及其對(duì)言語識(shí)別能力的影響。方法采用純音聽閾測試篩選出41例(81耳)感音神經(jīng)性聽力損失患者,經(jīng)均衡噪聲閾值測試將患者分為有耳蝸死區(qū)組(35耳)和無耳蝸死區(qū)組(46耳),分別進(jìn)行言語識(shí)別閾(SRT)和言語識(shí)別率(SDS)測試,分析81耳耳蝸死區(qū)的分布及其對(duì)言語識(shí)別能力的影響。結(jié)果 41例(81耳)感音神經(jīng)性聽力損失患耳中有35耳(43.21%,35/81)存在耳蝸死區(qū),其中輕度SNHL患耳耳蝸死區(qū)檢出率為0(0/11),中度SNHL患耳耳蝸死區(qū)檢出率為24.1%(7/29),重度SNHL患耳耳蝸死區(qū)檢出率為66.7%(24/36),極重度SNHL患耳耳蝸死區(qū)檢出率為80.0%(4/5),不同聽力損失程度耳耳蝸死區(qū)檢出率差異有統(tǒng)計(jì)學(xué)意義(P0.05);高頻耳蝸死區(qū)(16耳)明顯多于低頻耳蝸死區(qū)(8耳),但兩者的言語識(shí)別能力差異無統(tǒng)計(jì)學(xué)意義(P0.05);有耳蝸死區(qū)患者的言語識(shí)別閾及言語識(shí)別率分別為61.63±16.76dB HL,86.35%±12.03%,無耳蝸死區(qū)的患者分別為75.54±9.56dB HL,64.97%±20.84%,二者間差異有統(tǒng)計(jì)學(xué)意義(P0.05)。結(jié)論聽力損失越重,耳蝸死區(qū)檢出率越高;高頻耳蝸死區(qū)較低頻常見,且存在耳蝸死區(qū)的感音神經(jīng)性聽力損失患者言語識(shí)別能力明顯低于無耳蝸死區(qū)的患者。
[Abstract]:Objective to investigate the presence of cochlear dead zone in patients with sensorineural hearing loss (sensorineural hearing loss,SNHL) and its effect on speech recognition. Methods 41 patients (81 ears) with sensorineural hearing loss were selected by pure tone audiometry. The patients were divided into cochlear dead zone group (35 ears) and cochlear dead zone group (46 ears) by the equalization noise threshold test. Speech recognition threshold (SRT) and speech recognition rate (SDS) were measured respectively to analyze the distribution of the dead zone of the cochlea in 81 ears and its influence on the speech recognition ability. Results in 41 cases (81 ears) of sensorineural hearing loss, 35 ears (43.21 / 81) had cochlear death zone, and the detection rate of mild SNHL was 0 (0 / 11). The detection rate of cochlear dead zone in moderate SNHL was 24.1% (7 / 29), that in severe SNHL was 66.7% (24 / 36), and that in very severe SNHL was 80.0% (4 / 5). The detection rate of cochlea dead zone was significantly different among different hearing loss degree (P0.05). The high frequency cochlear dead zone (16 ears) was significantly more than the low frequency cochlear dead zone (8 ears), but there was no significant difference in speech recognition ability between the two groups (P0.05). The speech recognition threshold and speech recognition rate in patients with cochlear dead zone were 61.63 鹵16.76dB HL,86.35% 鹵12.03 and 75.54 鹵9.56dB HL,64.97% 鹵20.84, respectively. The difference between the two was statistically significant (P0.05). Conclusion the higher the hearing loss, the higher the detection rate of cochlear dead zone, and the lower frequency cochlear dead area is, and the lower the speech recognition ability is in the patients with sensorineural hearing loss with cochlear dead zone than in the patients without cochlear dead zone.
【作者單位】： 浙江中醫(yī)藥大學(xué);
【分類號(hào)】：R764

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