[Evaluation of the circulatory system in workers in the cellulose-paper industry]

The effect of occupational exposure on the circulatory system disorders was evaluated in 802 workers (675 men and 127 women). Occupational histories were analysed, as well as physical and X-ray examinations, laboratory tests (fasting blood cholesterol, triglycerides and glucose) and ECGs were performed. In doubtful cases echocardiography and stress tests on an ergonometer were carried out. Ischaemic heart disease was diagnosed in 1.37% and symptoms suggesting this disease in 6.48% of workers. The incidence of hypertension, anginal pain and dysrhythmias reported were significantly related to workers' age and duration of employment. Smoking, obesity, hypercholesterolaemia and positive family history were found to be most frequent risk factors. Arterial hypertension was diagnosed in 9.48% of workers. Non-occupational factors seem to be mainly responsible for the circulatory system disorders, however, the effects of occupational factors occurring in the cellulose and paper industry which may accelerate the development of ischaemic heart disease, arterial hypertension and dysrhythmias cannot be excluded.