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目的 探讨婴儿分泌性中耳炎的听力学诊断方法及其特点。方法 将47例(78耳)2~12月龄确诊为分泌性中耳炎的婴儿,按月龄分为2组,<6月龄52耳,≥6月龄26耳,均进行听性脑干反应、声导抗、镫骨肌声反射、畸变产物耳声发射测试,分析比较其结果。结果 78耳中气导ABR波V反应阈正常(≤25dBnHL)11耳(14.10%),轻度异常(26~40dBnHL)40耳(51.28%),中度异常(>40dBnHL)27耳(34.62%);ABR波I潜伏期正常2耳(2.56%),波I潜伏期延长73耳(93.59%),波I缺失3耳(3.85%);骨导ABR波V反应阈正常70耳(89.74%),异常8耳(10.26%)。1000Hz声导抗测试正常图形(A型)3耳(3.85%),异常图形(As型、C型、B型)75耳(96.15%),其中<6月龄52耳均为异常图形(100%),≥6月龄26耳中正常图形3耳(11.54%),异常图形23耳(88.46%)。226Hz声导抗测试正常图形(A型)14耳(17.95%),异常图形(As型、C型、B型)64耳(82.05%),其中<6月龄52耳中正常12耳(23.08%),异常40耳(76.92%),≥6月龄26耳中正常2耳(7.69%),异常24耳(92.31%)。镫骨肌声反射引出18耳(23.08%),未引出60耳(76.92%)。DPOAE通过22耳(28.21%),未通过56耳(71.79%)。结论 ABR波I潜伏期、声导抗测试对婴儿分泌性中耳炎的诊断有较高的敏感性。
Objective To investigate the diagnostic methods and characteristics of infant otitis media with otitis media. Methods 47 cases (78 ears) of infants with secretory otitis media who were diagnosed as 2 ~ 12 months old were divided into two groups according to age, 52 ears <6 months old and 26 ears ≥ 6 months old. All patients underwent auditory brainstem response , Acoustic impedance, acinar muscle acoustic reflex, distortion product otoacoustic emission test, analysis and comparison of the results. Results 78 ears (78%) had normal response (≤25dBnHL), 76 ears (51.28%) had moderate abnormalities (> 40dBnHL), 27 ears (34.62% ). The latency of ABR wave I was 2 ears (2.56%), the duration of wave I latency was 73 ears (93.59%), the wave I was 3 ears (3.85% Abnormal 8 ears (10.26%). 1000Hz acoustic impedance test 75 ears (96.15%) with normal pattern (A type) 3 ears (3.85%) and abnormal pattern (As type C, B type) %), 3 ears (11.54%) in 26 ears ≥ 26 months and 23 ears (88.46%) in abnormal pattern. 226 Hz acoustic impedance test Normal pattern (A type) 14 ears (17.95%), abnormal pattern (As type C, B type) 64 ears (82.05%) with <6 months old 52 ears normal 12 ears %), 40 ears (76.92%) were abnormal, 26 ears were normal 2 ears (7.69%) and 6 ears were abnormal (92.31%). Sound reflection of the stapedius leads to 18 ears (23.08%), did not lead to 60 ears (76.92%). DPOAE passed 22 ears (28.21%) and did not pass 56 ears (71.79%). Conclusion ABR wave I latency, acoustic impedance test for the diagnosis of infant otitis media with a higher sensitivity.