耳蜗死区对感音神经性听力损失患者言语识别能力的影响

发布时间：2019-01-20 09:56

【摘要】：目的探究耳蜗死区在感音神经性听力损失(sensorineural hearing loss,SNHL)患者中的存在情况及其对言语识别能力的影响。方法采用纯音听阈测试筛选出41例(81耳)感音神经性听力损失患者,经均衡噪声阈值测试将患者分为有耳蜗死区组(35耳)和无耳蜗死区组(46耳),分别进行言语识别阈(SRT)和言语识别率(SDS)测试,分析81耳耳蜗死区的分布及其对言语识别能力的影响。结果 41例(81耳)感音神经性听力损失患耳中有35耳(43.21%,35/81)存在耳蜗死区,其中轻度SNHL患耳耳蜗死区检出率为0(0/11),中度SNHL患耳耳蜗死区检出率为24.1%(7/29),重度SNHL患耳耳蜗死区检出率为66.7%(24/36),极重度SNHL患耳耳蜗死区检出率为80.0%(4/5),不同听力损失程度耳耳蜗死区检出率差异有统计学意义(P0.05);高频耳蜗死区(16耳)明显多于低频耳蜗死区(8耳),但两者的言语识别能力差异无统计学意义(P0.05);有耳蜗死区患者的言语识别阈及言语识别率分别为61.63±16.76dB HL,86.35%±12.03%,无耳蜗死区的患者分别为75.54±9.56dB HL,64.97%±20.84%,二者间差异有统计学意义(P0.05)。结论听力损失越重,耳蜗死区检出率越高;高频耳蜗死区较低频常见,且存在耳蜗死区的感音神经性听力损失患者言语识别能力明显低于无耳蜗死区的患者。
[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 卤16.76dB HL,86.35% 卤12.03 and 75.54 卤9.56dB HL,64.97% 卤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.
【作者单位】：浙江中医药大学;
【分类号】：R764

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