In this article, we evaluate electrocardiographic (ECG) alterations among urban workers from a mechanical-metallurgical industry in São Paulo, Brazil. In a cross-sectional survey carried out in 1980, we found 2.2% positive serological testing for Trypanosoma cruzi infection among 27,081 workers. A comparison between seropositive workers and a random sample of seronegative workers frequency-matched by age and occupation revealed that seropositive workers had a much lower educational level, and that a higher proportion of seropositive workers had ECG abnormalities (42.7%) when compared to those negative for T. cruzi infection (19.8%). The high frequency of ECG abnormalities suggests the need to provide medical assistance to these workers, without any kind of discrimination and to bring in a form of management that would decrease this dangerous risk to the workers and people around them.
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Goldbaum, M., Ajimura, F. Y., Litvoc, J., De Carvalho, S. A., & Eluf-Neto, J. (2004). American trypanosomiasis and electrocardiographic alterations among industrial workers in São Paulo, Brazil. Revista Do Instituto de Medicina Tropical de Sao Paulo. Instituto de Medicina Tropical de Sao Paulo. https://doi.org/10.1590/S0036-46652004000600001