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Biomedical subjects

A C Hogetveit

Publications and source records attributed to A C Hogetveit.

3 recordsLinked to original sources

Nickel-related cancers of the respiratory tract.

Nickel-related cancers of the respiratory tract have been recognized for nearly 50 years and represent a unique opportunity for prevention among refinery workers. Studies of exposed employees have been conducted in which evaluations were made of the histopathologic changes in the respiratory mucosa and the body burden of nickel was measured by regular plasma nickel determinations. The sites of tumor predilection are related to airflow patterns of the nose and tracheobronchial tree. The metaplastic changes in these areas are accompanied by increased tissue concentrations of nickel. Close monitoring of nickel workers has led to a lower incidence of respiratory cancers and earlier diagnosis.

Adult↗

Preventive health program for nickel workers.

The possible hazards of exposure to certain nickel compounds during nickel refining have been recognized for over 40 years. Much progress has been made in worker protection by cleaning up the process and by other protective means, and improved personal hygiene. The problem in the past has been determining those employees who are most exposed. This has been accomplished in this project by regular plasma and urine nickel determinations, demonstrating that nickel process workers absorb nickel which can be measured in plasma and urine. It was found that the highest plasma and urine nickel levels were seen in workers in those departments in which the greatest incidence of respiratory cancer occurs. Whether persistently elevated plasma nickel can be correlated with the eventual development of respiratory tract cancer is the subject for continued years of follow-up. It is not possible to conclude at this time that there is any association between the raised plasma and urine nickel and the incidence of cancer.

Environmental Exposure↗