[听神经瘤突发听力损失的临床显著性分析]
[Analysis of the clinical salience for sudden hearing loss in acoustic neuroma].
作者信息
Lü M, Liu H, Wang J
机构信息
Department of Otorhinolaryngology, Chengdu Railway Centrel Hospital, Chengdu 610081, China.
出版信息
Zhonghua Er Bi Yan Hou Ke Za Zhi. 2001 Feb;36(1):31-3.
OBJECTIVE
To avoid misdiagnosis and misapplied therapy of acoustic neuroma.
METHODS
92 cases of acoustic neuroma treated between 1983 and 1997 were retrospectively reviewed. Among them, 20 patients (21 ears, 21.7%) presented with sudden hearing loss as the starting symptoms. The diagnosis was based on audiological and radiologic examinations.
RESULTS
The clinical and audiological analysis demonstrated that 57.1% of the ears showed hearing loss over 71 dBHL, and all ears had deteriorated ABRs. Acoustic reflex was nonreactive in all 10 ears tested. Positive findings in CT scan were 88.89%. CT pneumoencephalography or MRI provided useful information of diagnosis in those with negative findings of place CT scan.
CONCLUSION
ABR should be used as a routine test for patients with sudden deafness. When ABR was abnormal, CT scan around the internal auditory meatus was needed.
目的
避免听神经瘤的误诊及不恰当治疗。
方法
回顾性分析1983年至1997年间治疗的92例听神经瘤患者。其中，20例患者（21耳，占21.7%）以突发听力下降为首发症状。诊断基于听力学和影像学检查。
结果
临床和听力学分析表明，57.1%的耳听力损失超过71 dBHL，所有耳的听性脑干反应（ABR）均恶化。所测试的10耳声反射均无反应。CT扫描阳性率为88.89%。对于CT平扫阴性的患者，CT气脑造影或磁共振成像（MRI）提供了有用的诊断信息。
结论
ABR应作为突发性聋患者的常规检查。当ABR异常时，需要对内耳道周围进行CT扫描。
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