Mulch G
HNO. 1978 Aug;26(8):258-64.
The early symptoms and findings of 25 patients with tumors of the internal auditory canal and cerebellopontine angle are described. Particular emphasis is placed on the diagnostic value of our methods for early tumor detection. Of the audiometric suprathreshold methods, the Carhart test, stapedius reflex audiometry, and the speech audiogram constituted the most reliable procedures for defining deafness due to involvement of the auditory nerve by tumor. All of the patients examined by electronystagmography showed a significant vestibular hypoexcitability on the side of tumor involvement. The methodology of the vestibular testing and its evaluation are detailed. Although these methods are complicated and time-consuming, they enable an early tumor diagnosis to be made so that surgical intervention will result in preservation of the facial nerve and markedly lessen surgical mortality.
描述了25例内耳道和桥小脑角肿瘤患者的早期症状和检查结果。特别强调了我们用于早期肿瘤检测方法的诊断价值。在听力超阈值检测方法中，卡哈特试验、镫骨肌反射听力测定和言语听力图是确定因肿瘤侵犯听神经导致耳聋的最可靠方法。所有接受眼震电图检查的患者在肿瘤侵犯侧均显示出明显的前庭兴奋性降低。详细介绍了前庭检测方法及其评估。尽管这些方法复杂且耗时，但它们能够实现早期肿瘤诊断，从而使手术干预能够保留面神经并显著降低手术死亡率。
