Gosepath K, Maurer J, Mann W
HNO-Universitätsklinik Mainz.
Laryngorhinootologie. 1995 Dec;74(12):728-32. doi: 10.1055/s-2007-997834.
Today intracanalicular acoustic neuromas are diagnosed very early by magnetic resonance imaging (MRI). The purpose of this study was to test the capability of brainstem evoked response audiometry (BERA) for detecting these small tumors.
Seventeen of 91 consecutive cases with acoustic neuromas treated at our department suffered from purely intracanalicular tumors. For these 17 patients we reviewed their medical history, clinical otoneurologic examination, audiometry, auditory evoked brainstem audiometry, electronystagmography, and MRI studies.
In 13 of 17 patients (76.5%) auditory evoked brainstem audiometry was indicative of a suspected retrocochlear lesion, whereas in 4 cases BERA did not indicate such a lesion.
The symptoms of these patients are described in detail. The role of auditory evoked brainstem audiometry and other otoneurologic test methods for detection of intracanalicular acoustic neuromas will be discussed.
如今，通过磁共振成像（MRI）可非常早期地诊断出内听道内听神经瘤。本研究的目的是测试脑干听觉诱发电位（BERA）检测这些小肿瘤的能力。
在我们科室接受治疗的91例连续听神经瘤患者中，有17例患有单纯的内听道肿瘤。对于这17例患者，我们回顾了他们的病史、临床耳神经学检查、听力测定、听觉诱发电位脑干听力测定、眼震电图和MRI研究。
17例患者中有13例（76.5%）听觉诱发电位脑干听力测定提示存在可疑的蜗后病变，而4例患者的BERA未提示此类病变。
详细描述了这些患者的症状。将讨论听觉诱发电位脑干听力测定及其他耳神经学检测方法在检测内听道内听神经瘤中的作用。
