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铅的慢性作用能否导致心血管疾病的问题,多年来一直争论。为提供有关资料,我院于1978年对全厂二千多名职工进行体检,查出心动过速患者(心率>100次/分)90名,对他们进行了心电图追踪观察。1979年又对961名铅密切接触的工人进行了体检,并根据卫生部1974年颁发的铅中毒诊断标准,确诊为轻度铅中毒患者221名,并做了心电图检查,以探讨铅对心血管的影响。 观察对象与方法 1.对90名心动过速患者的追踪观察方法:在一年前和一年以后对他们进行了同样的
Whether the chronic effects of lead can lead to cardiovascular problems has been debated over the years. To provide relevant information, our hospital in 1978, the whole plant more than 2,000 workers for medical examination, found tachycardia patients (heart rate> 100 beats / min) 90, on their ECG tracking. In 1979, 961 workers in close contact with the lead were also examined. Based on the diagnostic criteria for lead poisoning issued by the Ministry of Health in 1974, 221 patients with mild lead poisoning were diagnosed and an electrocardiogram examination was conducted to investigate the effects of lead on cardiovascular Impact. Observed Subjects and Methods 1. Follow-up observation of 90 tachycardia patients: A year and a year later they were given the same