Evaluation of New Cases of Asbestosis in 1996

M. Posgay, É. Galambos, L. Németh

National Institute of Occupational Health, Budapest, Hungary

CEJOEM 1997, Vol.3. No.4.:331

12 new cases of asbestosis and/or asbestos-related lung diseases were registered in 1996. Compared to previous years this number shows a slight but steady decrease.
    10 persons worked in asbestos production and another 2 were asbestos product users. Mean age of the workers at the onset of the exposure was 20.6 ys, average duration of exposure to asbestos was 22.8 ys. The latency period for development of asbestosis was 33 ys, the mean age of the patients at the diagnosis was 54.6 ys. These data are similar to those cited in the literature.
    Diagnosis is based primarily on radiography, findings of physical examination and lung function tests are taken into consideration as well. An early stage of asbestosis has been diagnosed in 9 patients, 5 of them had been controlled by our institute for some years because of minimal radiological signs, 4 patients were transferred for examination by other diagnostical units.
    In 3 additional cases (1 woman and 2 men) asbestos-related lung cancer and/or mesothelioma could be verified, one of them with radiological signs of advanced-stage asbestosis. Retrospective reading of screening films prove that cancer may develop within 1 year. Smoking increases the risk. Though the number of new cases of asbestosis is decreasing we have to expect an increasing incidence of malignant tumors among the population formerly exposed to asbestos.

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