目的研制7套具备音位平衡特征的双音节测试材料并进行等价性分析。方法按照常用原则,在解放军军语空军部分筛选出500条军事飞行人员地空交流常用的双音节词,并选取歼击机、运输机及直升机各30名飞行人员对词表常用程度进行调查,确定难...目的研制7套具备音位平衡特征的双音节测试材料并进行等价性分析。方法按照常用原则,在解放军军语空军部分筛选出500条军事飞行人员地空交流常用的双音节词,并选取歼击机、运输机及直升机各30名飞行人员对词表常用程度进行调查,确定难度一致的双音节词343个,按照音位平衡原则制成7张(每张49词)双音节测试词表。选取28名年龄18~25岁的飞行人员,使用7张飞行人员指令性双音节词表作为测试材料,使用0、4、8、12 dB HL四个固定强度从低到高的顺序进行言语测试,受试者聆听7张词表的顺序不同,记录每张词表在各个声强下的言语识别率。使用SPSS 26.0对结果进行分析。结果7张词表相互等价性较好(P>0.05);在不同测试强度下言语识别率有显著差异(P<0.001)。言语识别率强度函数(P-I)曲线平均斜率为4.12%/dB;当识别率为50%时,给声强度平均值为(4.31±0.35)dB HL,斜率为7.28%/dB,为曲线中最陡峭部分;识别率20%~80%线性区域平均斜率为4.98%/dB。结论该研究表明所编制的7张飞行人员指令性双音节词表具有较好的等价性,并建立了听力正常飞行人员的P-I曲线,可应用于临床测试、实验研究及医学鉴定工作中。展开更多
Objective:To investigate if routine audiometry in Bell’s palsy patients has prognostic value.Methods:Retrospective case review was conducted on all Bell’s palsy patients(n紏191)seen at the tertiary otolaryngology sp...Objective:To investigate if routine audiometry in Bell’s palsy patients has prognostic value.Methods:Retrospective case review was conducted on all Bell’s palsy patients(n紏191)seen at the tertiary otolaryngology specialist outpatient clinic from 2015 to 2017.Correlation of ipsilesional audiometric thresholds with patients’time-to-recovery and initial clinical severity(measured by House-Brackmann(HB)scoring)were used for the prognostic outcome measure.Audiometry results were analyzed using three contiguous frequency pure-tone average(1kHz,2kHz,4kHz).Statistical analysis was done via Stata(v13.1),significance tests were 2-sided at 5%significance level.Results:There was no significant difference between audiometric thresholds between the ipsilesional ear and the contralateral ear(p=0.87).Time-to-recovery was significantly longer for patients with severe initial presentation as compared to mild and moderate severity(p<0.01).There was no correlation found between the audiometry results and HB score at presentation(p=0.39).There was no correlation found between ipsilesional audiometric thresholds and time-to-recovery(p=0.58).Conclusion:Our study suggests that routine audiometry has limited prognostic value in Bell’s palsy patients.展开更多
文摘目的探讨先天性婴幼儿单侧听神经发育不良(cochlear nerve deficiency,CND)患者的听力学特征。方法将内耳磁共振成像(MRI)显示为单侧听神经发育不良的21例(21耳)患者作为研究对象,其中男9例,女12例,年龄10个月~7岁,(1.91±1.38)岁,回顾性分析患者的行为测听与听性稳态反应(ASSR)阈值相关性、chirp声诱发听性脑干反应(chirp-ABR)、耳声发射(OAE)等结果,分析听神经发育不良者的听力学特征。结果21例(21耳)听神经发育不良患者行为测听、chirp-ABR听性脑干反应、听性稳态反应ASSR结果均提示患耳呈重度-极重度听力损失,行为测听阈值与听性稳态反应ASSR阈值有高度相关性,ASSR和行为测听的差值较小。76.2%(16/21)听神经发育不良耳可在90~100 dB nHL高强度声刺激下引出ABR,但ABR振幅减小,Ⅲ波和Ⅴ波潜伏期延长。结论听神经发育不良患者ASSR与行为测听的差值小,A-ABR引不出,OAE存在一定假阴性率,ABR引出多以Ⅲ波为主,潜伏期延长,阈值为极重度,以上听力学特征可提高CND早期发现与诊断率,提升干预效果。
文摘目的研制7套具备音位平衡特征的双音节测试材料并进行等价性分析。方法按照常用原则,在解放军军语空军部分筛选出500条军事飞行人员地空交流常用的双音节词,并选取歼击机、运输机及直升机各30名飞行人员对词表常用程度进行调查,确定难度一致的双音节词343个,按照音位平衡原则制成7张(每张49词)双音节测试词表。选取28名年龄18~25岁的飞行人员,使用7张飞行人员指令性双音节词表作为测试材料,使用0、4、8、12 dB HL四个固定强度从低到高的顺序进行言语测试,受试者聆听7张词表的顺序不同,记录每张词表在各个声强下的言语识别率。使用SPSS 26.0对结果进行分析。结果7张词表相互等价性较好(P>0.05);在不同测试强度下言语识别率有显著差异(P<0.001)。言语识别率强度函数(P-I)曲线平均斜率为4.12%/dB;当识别率为50%时,给声强度平均值为(4.31±0.35)dB HL,斜率为7.28%/dB,为曲线中最陡峭部分;识别率20%~80%线性区域平均斜率为4.98%/dB。结论该研究表明所编制的7张飞行人员指令性双音节词表具有较好的等价性,并建立了听力正常飞行人员的P-I曲线,可应用于临床测试、实验研究及医学鉴定工作中。
文摘Objective:To investigate if routine audiometry in Bell’s palsy patients has prognostic value.Methods:Retrospective case review was conducted on all Bell’s palsy patients(n紏191)seen at the tertiary otolaryngology specialist outpatient clinic from 2015 to 2017.Correlation of ipsilesional audiometric thresholds with patients’time-to-recovery and initial clinical severity(measured by House-Brackmann(HB)scoring)were used for the prognostic outcome measure.Audiometry results were analyzed using three contiguous frequency pure-tone average(1kHz,2kHz,4kHz).Statistical analysis was done via Stata(v13.1),significance tests were 2-sided at 5%significance level.Results:There was no significant difference between audiometric thresholds between the ipsilesional ear and the contralateral ear(p=0.87).Time-to-recovery was significantly longer for patients with severe initial presentation as compared to mild and moderate severity(p<0.01).There was no correlation found between the audiometry results and HB score at presentation(p=0.39).There was no correlation found between ipsilesional audiometric thresholds and time-to-recovery(p=0.58).Conclusion:Our study suggests that routine audiometry has limited prognostic value in Bell’s palsy patients.
