Zhang Y, Li D D, Chen X W
Department of Otorhinolaryngology Head and Neck Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China.
Department of Otorhinolaryngology, Karamay Central Hospital.
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2017 Jun 20;31(12):910-913. doi: 10.13201/j.issn.1001-1781.2017.12.004.
Case-control study analysis of the speech discrimination of unilateral microtia and external auditory canal atresia patients with normal hearing subjects in quiet and noisy environment. To understand the speech recognition results of patients with unilateral external auditory canal atresia and provide scientific basis for clinical early intervention. Twenty patients with unilateral congenital microtia malformation combined external auditory canal atresia, 20 age matched normal subjects as control group. All subjects used Mandarin speech audiometry material, to test the speech discrimination scores (SDS) in quiet and noisy environment in sound field. There's no significant difference of speech discrimination scores under the condition of quiet between two groups. There's a statistically significant difference when the speech signal in the affected side and noise in the nomalside (single syllable, double syllable, statements; S/N=0 and S/N=-10) (<0.05). There's no significant difference of speech discrimination scores when the speech signal in the nomalside and noise in the affected side. There's a statistically significant difference in condition of the signal and noise in the same side when used one-syllable word recognition (S/N=0 and S/N=-5) (<0.05), while double syllable word and statement has no statistically significant difference (>0.05). The speech discrimination scores of unilateral congenital microtia malformation patients with external auditory canal atresia under the condition of noise is lower than the normal subjects.
单侧小耳畸形和外耳道闭锁患者与听力正常受试者在安静和嘈杂环境下言语辨别能力的病例对照研究分析。旨在了解单侧外耳道闭锁患者的言语识别结果，为临床早期干预提供科学依据。选取20例单侧先天性小耳畸形合并外耳道闭锁患者，20例年龄匹配的正常受试者作为对照组。所有受试者采用普通话言语测听材料，在声场中测试安静和嘈杂环境下的言语辨别得分（SDS）。两组在安静条件下的言语辨别得分无显著差异。当患侧言语信号与健侧噪声（单音节、双音节、语句；信噪比=0和信噪比=-10）时，存在统计学显著差异（<0.05）。当健侧言语信号与患侧噪声时，言语辨别得分无显著差异。当使用单音节词识别（信噪比=0和信噪比=-5）时，同侧信号与噪声条件下存在统计学显著差异（<0.05），而双音节词和语句则无统计学显著差异（>0.05）。单侧先天性小耳畸形合并外耳道闭锁患者在噪声条件下的言语辨别得分低于正常受试者。
