腭裂患者听力减退的分析研究

A study on hypoacusis of cleft palate patients

目的 分析研究腭裂患者听力障碍的影响程度和范围。方法 对 2 2例腭裂术前患者同期进行了钝骨测听 ,声导抗测试 ,听脑干反应测试及耳科一般检查。结果 纯音测听听力减退为 93.18% ,声导抗测试异常的鼓室功能曲线占 95 .45 % ,声反射引出率为 47.73% ,听脑干反应测试 ,5 4.5 5 %受试耳的听阈高于正常值 ,I波潜伏期与正常值间有显著性差异 ,鼓膜内陷为 86 .36 % ,咽鼓管咽口呈线型改变达 6 1.36 %。结论 各项检测证明腭裂患者听力具有明显异常。

Objective To study the hypoacusis in the cleft palate patients.Methods Simultaneous pure-tone audiometry,acoustic-impedance test and auditory brain-stem response (ABR),plus clinical otological examination were porformed in twenty-two cleft palate patients.Results Routine clinical otological examination found high rate of otopiesis (86.36%) with a 61.36% of the pharyngeal arifice of eustachian tube presenting as a slit.Palatognathus hypoacusis reached 93.18% in pure-tone audiometry.Abnormal tympanagram consisted of 95.45% with a 47.73% positive auditory reflex rae.ABR test found increased hearing threshold level in 54.55% with the value of wave I latency between left or right ears and normal value being signifiecanthy increased.Conclusion The results show obvious abnormality of hypoacusis in the cleft palate patients.