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Attarchi MS, Aminian O, Dolati M, et al. Evaluation of liver enzyme levels in workers exposed to vinyl chloride vapors in a petrochemical complex: a cross-sectional study. J Occup Med Toxicol. 2007;2:6doi: 10.1186/1745-6673-2-6.
Attarchi, M. S., Aminian, O., Dolati, M., & Mazaheri, M. (2007). Evaluation of liver enzyme levels in workers exposed to vinyl chloride vapors in a petrochemical complex: a cross-sectional study. Journal of occupational medicine and toxicology (London, England), 26. https://doi.org/10.1186/1745-6673-2-6
Attarchi, Mir Saeed, et al. "Evaluation of liver enzyme levels in workers exposed to vinyl chloride vapors in a petrochemical complex: a cross-sectional study." Journal of occupational medicine and toxicology (London, England) vol. 2 (2007): 6. doi: https://doi.org/10.1186/1745-6673-2-6
Attarchi MS, Aminian O, Dolati M, Mazaheri M. Evaluation of liver enzyme levels in workers exposed to vinyl chloride vapors in a petrochemical complex: a cross-sectional study. J Occup Med Toxicol. 2007 Aug 08;2:6. doi: 10.1186/1745-6673-2-6. PMID: 17686177; PMCID: PMC1976098.
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J Occup Med Toxicol. 2007 Aug 08;2:6. doi: 10.1186/1745-6673-2-6.

Evaluation of liver enzyme levels in workers exposed to vinyl chloride vapors in a petrochemical complex: a cross-sectional study.

Journal of occupational medicine and toxicology (London, England)

Mir Saeed Attarchi, Omid Aminian, Mandana Dolati, Maria Mazaheri

Affiliations

  1. Department of Occupational Medicine, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran. [email protected].

PMID: 17686177 PMCID: PMC1976098 DOI: 10.1186/1745-6673-2-6

Abstract

BACKGROUND: Polyvinyl chloride is used in production and manufacturing of many essential tools (e.g. plastic pipes, photography films, etc.). Its production is impossible without the use of vinyl chloride monomer (VCM), which can cause liver damage in long-term. In this study we intend to assess the effects of mild to moderate long term exposure to VCM on liver and to assess the importance of liver enzyme measurements as a screening tool.

METHODS: In this study, liver enzyme levels of 52 workers were compared to 48 control workers using the T-test. The cases all worked in a PVC production unit in a petrochemical complex and the controls were randomly selected from office personnel of the same complex. A questionnaire was also filled in about information such as age, weight, work history, etc. in both groups.

RESULTS: Mean comparisons for ALP and GGT using T-test showed statistically significant differences between the two groups. For AST, ALT and bilirubin (total, direct) the mean was higher in the case group but this difference was not statistically significant.

DISCUSSION: This study showed that mild exposure to VCM can cause mild liver cholestasis. So, using cholestasis assessment tests such as ALP and GGT should be considered in periodic assessment of liver function in PVC producing units.

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