Clinical-bioumoral-electromyographic study in 100 workers exposed to lead poisoning risk

An EM-Graphic research has been conducted on 100 subjects occupationally exposed to lead poisoning risk who came to be evaluated in our department in the period 1976-1979. In the hospitalized patients EMG, as well as routine and some specific tests were also performed (blood lead, urinary lead, urinary lead after chelation, erythroprotoporphyrin, urinary ALA and coproporphyrin). EMG alterations were noted in 54% of the cases. We tried to establish a possible relationship between EMG and clinical and biohumoral data. A significant increase was noted of subjects with EMG impairments at long exposure duration. No relationship was noted between EMG data and the various biohumoral parameters considered, although there was a high percentage of subjects with EMG impairments even at biohumoral index considered in the 'accetable limits'.