锰铁冶炼工人的神经行为改变

The neurobehavioral changes of ferromanganese smelting workers.

本文采用WHO推荐的“神经行为核心测验组合”对61名锰铁冶炼工人及其对照组进行了神经行为功能测定。结果发现,锰铁冶炼工人由于受锰烟等的影响,即使在临床体检、脑电图、尿锰水平均正常的情况下,神经行为功能已出现改变。在扣除年龄及受教育程度对行为功能影响的前提下,其短时视记忆力,手工操作敏捷度,感如运动速度,手运动的速度,反应速度及注意力均明显下降。不少行为指标间具有相关性,显示了行为功能的内在联系。结果提示,行为功能测定在慢性锰中毒早期诊断方面,可提供定量的评价指标。

The neurobehavioral function of 61 ferromanganese smelting workers and 61 manganese-nonexposed workers with the same age and educational levels were examined according to the core test battery recommended by WHO. It was found that the short term visual memory, manual dexterity, perceptual motor speed, the ability to make quick movements with the hand and the speed of reaction and attention were shown to be obviously attenuated and to be out of the influence of age and education factor, although their clinical physical examination, EEG and the urinary manganese level appeared to be normal. There were some correlelations among behavioral indices, indicating the possible inherent relationship among those behavioral functions. It suggested that the behavioral function test may serve as a quantitative evaluation index in the early diagnosis of chronic manganese poisoning.