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目的探讨不同搜索时间对儿童DPOAE测试的影响。方法将50例(100耳)受试儿分为A组(30例60耳,听力正常)和B组(20例40耳,听力异常),Madsen Capella耳声发射仪搜索时间设定为10秒、100秒分别对两组进行DPOAE检测,比较两组不同搜索时间的检出率和实际检测所用时间。结果搜索时间为10秒、100秒时,A组DPOAE检出率均为100%,实际所用时间分别为48秒和53秒,差异无统计学意义(P>0.05);B组DPOAE检出率分别为2%和1%,差异无统计学意义(P>0.05),设定搜索时间为10秒时每耳平均所需时间67秒,显著短于搜索时间为100秒时平均所需时间590秒(P<0.01)。结论设定搜索时间为10秒时进行DPOAE测试对引出率无影响,但能显著缩短听力障碍儿童检测所用时间。
Objective To explore the effect of different search time on DPOAE test in children. Methods Fifty children (100 ears) were divided into group A (30 cases of 60 ears, normal hearing) and group B (20 cases of 40 ears). The search time of Madsen Capella otoacoustic transmitter was set to 10 seconds , 100 seconds were detected DPOAE two groups, comparing the detection rate of two different search time and the actual test time. Results The detection rate of DPOAE in group A was 100% when the search time was 10 seconds and 100 seconds, respectively. The actual time used was 48 seconds and 53 seconds respectively, with no significant difference (P> 0.05). The detection rate of DPOAE in group B Respectively, 2% and 1%, the difference was not statistically significant (P> 0.05), set the search time of 10 seconds, the average time required for each ear 67 seconds, significantly shorter than the search time of 100 seconds, the average time required 590 Seconds (P <0.01). Conclusion Setting the search time to 10 seconds for DPOAE testing has no effect on lead-out rates, but significantly reduces the time spent on hearing-impaired children.