Luxon L M
J Neurol Neurosurg Psychiatry. 1980 Jun;43(6):510-5. doi: 10.1136/jnnp.43.6.510.
A retrospective study of 309 unselected patients with brainstem disorders was carried out to establish the incidence and degree of hearing loss in this group as a whole and in each of three separate pathologies: multiple sclerosis, vertebro-basilar ischaemia and brainstem tumours. Pure tone audiograms were corrected for age and sex and upon analysis, thereafter, 59% and 26% of patients were found to have hearing thresholds in excess of 10dB and 30dB respectively. The hearing loss tended to be slight to moderate, 87% of those with a deficit were in the range 11--59dB, and tended to involve the higher frequencies. No characteristic audiometric configuration emerged. 75% of those with a hearing loss suffered a bilateral deficit. Considering the multiple sclerosis, vertebro-basilar insufficiency and tumour groups individually, similar findings were observed with the mildest losses occurring in multiple sclerosis and the most severe in the tumour group.
对309例未经挑选的脑干疾病患者进行了一项回顾性研究，以确定该组整体以及三种不同病理类型（多发性硬化症、椎基底动脉缺血和脑干肿瘤）各自的听力损失发生率和程度。纯音听力图根据年龄和性别进行了校正，分析后发现，分别有59%和26%的患者听力阈值超过10dB和30dB。听力损失往往为轻度至中度，87%有听力缺陷的患者听力损失在11-59dB范围内，且往往累及高频。未出现特征性的听力图形态。75%有听力损失的患者为双侧听力缺陷。单独考虑多发性硬化症、椎基底动脉供血不足和肿瘤组，观察到了类似的结果，听力损失最轻的是多发性硬化症组，最重的是肿瘤组。
