机构地区:[1]广东省职业病防治院,广东省职业病防治重点实验室,广东广州510300 [2]烟台市职业病防治院,山东烟台264000
出 处:《中国职业医学》2016年第3期296-300,共5页China Occupational Medicine
基 金:国家自然科学基金青年项目(81202183);广东省职业病防治重点实验室(2012A061400007);广东省对外科技合作项目(2013B051000065)
摘 要:目的分析手传振动作业对金矿凿岩工指端振动觉和痛觉阈值的影响。方法采用判断抽样方法,选择北方某金矿从事手传振动作业的凿岩工134人作为接振组,另选择同一矿上无接触振动作业的扒装工102人作为对照组。对2组工人进行职业健康调查、指端振动觉和痛觉阈值测试。接振组工人根据有无自诉白指分为接振非白指亚组(105人)和接振白指亚组(29人)。结果接振组工人手麻、手痛症状发生率和自诉白指率均高于对照组(P<0.05)。接振组工人右手食指、右手中指和右手无名指的振动觉阈值均高于对照组(P<0.05),但2组工人左手无名指振动觉阈值比较,差异均无统计学意义(P>0.05)。接振白指亚组工人左手无名指、右手食指、右手中指和右手无名指的振动觉阈值均高于对照组(P<0.05),但接振非白指亚组上述4种手指的振动觉阈值分别与对照组比较,差异均无统计学意义(P>0.05);接振白指亚组工人左、右手无名指和右手食指的振动觉阈值均高于接振非白指亚组(P<0.05),但该2组工人右手中指的振动觉阈值比较,差异均无统计学意义(P>0.05)。接振组工人双手食指、中指和无名指的痛觉阈值均高于对照组(P<0.05)。接振白指亚组和接振非白指亚组工人双手中指、无名指的痛觉阈值均高于对照组(P<0.05)。结论手传振动接触可使手传振动作业人员指端振动觉阈值和痛觉阈值提高;指端感觉检查可作为早期发现手传振动致周围神经损害的辅助手段之一。Objective To analyze the effects of hand-transmitted vibration exposure on the finger vibratory and pain perception thresholds among drill workers in a gold mine. Methods By the judgement sampling method,134 male drill workers from a gold mine in the northern area of China were selected as the hand-transmitted vibration exposure group and102 fit-up workers without vibration exposure in the same mine were chosen as the control group. The finger vibratory perception thresholds,the pain perception thresholds and the occupational health examination were conducted and analyzed in these two groups. Based on the self-report with vibration-induced white finger( VWF),the workers of hand-transmitted vibration exposure group were divided into non-VWF subgroup( 105 workers) and VWF subgroup( 29 workers). Results The incidence of finger numbness,pain and self-reported white finger in the exposure group were significantly higher than those in the control group( P〈0. 05). Compared with the control group,the vibratory perception thresholds of the index finger,middle finger and ring finger of the right hand among the vibration exposure group workers were significantly higher( P〈0. 05),but there was no significant difference in the vibratory perception thresholds of the left ring finger between the two groups( P〈0. 05). The vibratory perception thresholds of both ring fingers,right index finger and right middle-finger in VWF subgroup were higher than those in control group( P〈0. 05). But no significant differences was found in the above 4 indexes in these two groups after compared to those of control group,respectively( P〈0. 05). The vibratory perception thresholds of left ring finger,right ring finger and right index finger in VWF subgroup were all higher than those in non-VWF subgroup( P〈0. 05),but the vibratory perception thresholds of right middle finger in these two groups showed no significant difference( P〈0. 05). The pain perception thresholds of index finger,middle fin
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