对 2 6例职业性慢性铅接触而未达到铅中毒者进行神经传导速度 (NCV)及肌电图 (EMG)检测 ,并与健康人进行对比分析。慢性铅接触者有 13 1%NCV轻微减慢 ,波幅下降者占 2 7 2 %。EMG总异常率为 5 7 7% ,其中以指总伸肌及桡神经的异常率最高。提示无神经系统临床表现的职业性慢性铅接触者部分已出现神经 肌电图的异常改变 ,神经 肌电图检查是诊断亚临床铅神经病的敏感指标。指总伸肌及桡神经的敏感性较高 ,可作为首选检查 Nerve conduction velocity (NCV) and electromyography (EMG) were detected in 26 cases of occupational chronic lead exposure without lead poisoning, and compared with healthy people. Chronic lead exposure showed a slight slowdown of 13 1% NCV with a decrease of 2 72% in amplitude. The total anomalous rate of EMG was 57.7%, of which the highest abnormal rate of extensor and radial nerve. Neurological EMG abnormalities have been observed in part of occupational chronic lead exposure without clinical manifestations of the nervous system, and neuromuscular examination is a sensitive indicator for the diagnosis of subclinical lead neuropathy. Refers to the high sensitivity of the total extensor and radial nerve can be used as the preferred examination