CENTRAL AND PERIPHERAL NERVOUS-SYSTEM EFFECTS OF HAND-ARM VIBRATING TOOL OPERATION - A STUDY OF BRAIN-STEM AUDITORY-EVOKED POTENTIAL AND PERIPHERAL-NERVE CONDUCTION
CENTRAL AND PERIPHERAL NERVOUS-SYSTEM EFFECTS OF HAND-ARM VIBRATING TOOL OPERATION - A STUDY OF BRAIN-STEM AUDITORY-EVOKED POTENTIAL AND PERIPHERAL-NERVE CONDUCTION
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DOI：
10.1007/bf00379429
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发表时间：
1990-01-01
影响因子：
3
通讯作者：
AONO, H
中科院分区：
文献类型：
--
作者：
MURATA, K;ARAKI, S;AONO, H
为探讨手臂振动工具作业对中枢和外周神经系统的影响，对12名链锯作业者（其中6名有白色指发作史）和8名刷锯作业者（无白指发作史）进行了脑干听觉诱发电位（BAEP）、正中神经传导速度和听力水平的测定。对照组随机抽取无耳炎、耳聋、耳鸣的健康成人，按性别、年龄与链锯、油锯操作者相匹配。油锯作业者BAEP的I-V间期（耳蜗神经至脑干的传导）和V峰潜伏期明显延长;油锯作业者的I-V间期与工龄显著相关。油锯和油锯操作者的正中神经传导速度明显减慢。两组均出现中度听力损失。有人建议，振动工具操作，即局部振动，噪声，气候和繁重的工作的综合应激源，不仅影响周围神经系统，但也脑干部分的听觉通路，脑干效应，如果有的话，是不先进的比周围神经系统的影响局部振动。
To examine the effects of hand-arm vibrating tool operation on the central and peripheral nervous system, the brainstem auditory-evoked potential (BAEP), median nerve conduction velocity and hearing level were measured in twelve chain saw operators (6 operators had a history of white finger attack) and in eight brush saw operators (none had a history of the attack). Control subjects, matched to each chain saw and brush saw operator by sex and age, were selected randomly from healthy adults without otitis, deafness and tinnitus. The I-V interpeak latency (conduction from cochlear nerve to brainstem) and V peak latency of BAEP were significantly prolonged in chain saw operators; the I-V interpeak latency was significantly correlated with working years in brush saw operators. The median nerve conduction velocity was significantly slowed in both chain saw and brush saw operators. Moderate hearing loss was observed in the two groups. It is suggested that vibrating tool operation, i.e. the combined stressors of local vibration, noise, climate and heavy work, affected not only the peripheral nervous system but also the brainstem portion of the auditory pathway; the brainstem effect, if any, is less advanced than the peripheral nervous system effect of local vibration.