腭裂修复术手术年龄对中耳功能的影响

目的：探讨腭裂患者中耳功能障碍听力损失发病特点，腭裂修复术手术年龄对听力的影响。方法；对住院12岁以下腭裂患者60例，术后6个月分别用脑干听觉诱发电位，声阻抗进行听力及中耳功能检测，术前鼓室分泌物细菌培养。结果：腭裂患儿术前听力损失发病率为74．17％正常鼓室图为20％，3岁前高达81．16％，术后6个月患儿听力有一定程度恢复，正常鼓室图占58．33％，听力在婴儿时已经损失严重，随年龄增长听力有所改善，听力损失与腭裂部位类型无关。鼓室分泌物细菌培养，G^ ,G^-阳性率为22．86％，23．53％，且多为低毒性条件致病菌。结论：腭裂患者听力损失在婴幼儿已经存在，早期修复腭裂有助于咽鼓管功能恢复，有利于语言发育。

The effect of cleft palate and age on the middle otic function

Objective To investigate the feature of middle otic function impediment with hearing lost of cleft palate and the enttuence of cleft palate repair on hearing.Methods 60 cases under 12 year-old with cleft palate were tested with middle otic function and hearing by acoustic impedance and evoked auditory brainstem potential before and after operation.The organism culture of tympanic secretion was done before operation.Results The rate of hearing lost before operation was 74.17 %,the abnormal tympanic graph rate was 20%( 81.6 % before 3 year-old).Hearing was improved at a certain degree 6 months after operation,the abnormal tympanic graph rate was 58.33 %.The G and G positive rate of organism culture of tympanic scretion was 22.86 % and 23.58 %,most organisms were low poisonous and conditional infective.Conclusion The hearing lost of children with cleft palate is severe and exists in infancy.Hearing is improved with growth.The hearing lost has no relation with the site or type of cleft palate.Early cleft palate repair faciliates the recovery of otosalpinx function and decreases hearing lost.