Oosterveld W J, Polman A R, Schoonheyt J
Br J Audiol. 1982 Nov;16(4):227-32. doi: 10.3109/03005368209081467.
An extensive vestibular examination was carried out in a group of 29 noise-exposed technicians. A spontaneous nystagmus was found in 18 persons, and 24 had a positional nystagmus exceeding a velocity of the slow phase of 5 degrees/s in three or more positions. In 17 subjects a cervical nystagmus could be provoked, while a nystagmus preponderance of more than 20% in the rotation test was found in seven persons. A difference in excitability between the labyrinths of more than 20% was shown by seven subjects. None of the subjects showed pathology in the tests for central vestibular disorders. The technicians were divided into four groups, according to the severity of their hearing loss. No correlation was found between the grade of the hearing loss and the vestibular function disturbance. This can be explained in terms of the adaptive properties of the vestibular system. All subjects showed pathology in one or more of the vestibular tests. The medico-legal aspects of vestibular involvement in noise-induced hearing loss can be of some importance. Hearing loss itself does not affect work capability directly; however, a vestibular disorder might well do so. In consequence, noise-exposed individuals could be disabled because of vertigo or balance disorder--an important and perhaps neglected aspect of noise-induced hearing damage.
对一组29名接触噪声的技术人员进行了全面的前庭检查。18人发现有自发性眼球震颤，24人在三个或更多位置出现慢相速度超过5度/秒的位置性眼球震颤。17名受试者可诱发颈性眼球震颤，7人在旋转试验中发现眼球震颤优势超过20%。7名受试者的迷路兴奋性差异超过20%。所有受试者在中枢前庭障碍测试中均未显示出病变。根据听力损失的严重程度，将技术人员分为四组。未发现听力损失程度与前庭功能障碍之间存在相关性。这可以从前庭系统的适应性特性方面来解释。所有受试者在一项或多项前庭测试中均显示出病变。前庭受累在噪声性听力损失中的法医学方面可能具有一定重要性。听力损失本身并不直接影响工作能力；然而，前庭障碍很可能会影响工作能力。因此，接触噪声的个体可能会因眩晕或平衡障碍而致残——这是噪声性听力损伤一个重要且可能被忽视的方面。
