PMID- 14571510 OWN - NLM STAT- MEDLINE DCOM- 20040312 LR - 20131121 IS - 0271-3586 (Print) IS - 0271-3586 (Linking) VI - 44 IP - 5 DP - 2003 Nov TI - Utility of a routine medical surveillance program with benzene exposed workers. PG - 467-73 AB - BACKGROUND: A medical surveillance program of benzene-exposed workers has to be established in such a way as to observe early signs of benzene-induced cytopenia, pancytopenia, or leukemia. This study evaluates the utility of routine medical survey applied to benzene-exposed workers by analyzing the hematological, immunological, and cytogenetic assay results. METHODS: The results of a previous study of hematological, immunological, and cytogenetic assays in benzene-exposed workers (up to 15 ppm) are used to discuss medical surveillance program by defining the relationship between various benzene exposure concentrations and toxic endpoints. RESULTS: Exposure to benzene concentration lower than 5 ppm does not produce any abnormal hematological measurements. For benzene cumulative exposure above 100 (ppm-years), some blood indices [mean corpuscular volume (MCV), mean corpuscular hemoglobin concentration (MCHC), band neutrophils] show significant differences in comparison to the control group. The incidence of dicentric chromosomes was higher and the level of B-lymphocytes was lower even with workers exposed to 5 ppm of benzene; correlation with exposure indicators was not found. CONCLUSIONS: The results suggest that peripheral blood indices, although not sensitive enough, are still the most suitable parameters in a health surveillance program applied to benzene-exposed workers. B-lymphocytes could be a promising indicator of the benzene-induced damage. Cytogenetic tests did not prove to be suitable. Further investigation of useful screening tests for health surveillance program of benzene-exposed workers is still required. CI - Copyright 2003 Wiley-Liss, Inc. FAU - Bogadi-Sare, Ana AU - Bogadi-Sare A AD - Croatian Institute of Occupational Health, Division for Occupational Diseases and Industrial Toxicology, Zagreb, Croatia. hzmr@hzmr.hr FAU - Zavalic, Marija AU - Zavalic M FAU - Turk, Rajka AU - Turk R LA - eng PT - Journal Article PL - United States TA - Am J Ind Med JT - American journal of industrial medicine JID - 8101110 RN - J64922108F (Benzene) SB - IM MH - Adult MH - Benzene/*adverse effects MH - Female MH - Hematologic Diseases/*diagnosis/etiology MH - Humans MH - Industry MH - Mass Screening/*methods MH - Middle Aged MH - Occupational Diseases/*diagnosis/etiology MH - Occupational Health MH - Population Surveillance/*methods MH - Shoes EDAT- 2003/10/23 05:00 MHDA- 2004/03/16 05:00 CRDT- 2003/10/23 05:00 PHST- 2003/10/23 05:00 [pubmed] PHST- 2004/03/16 05:00 [medline] PHST- 2003/10/23 05:00 [entrez] AID - 10.1002/ajim.10296 [doi] PST - ppublish SO - Am J Ind Med. 2003 Nov;44(5):467-73. doi: 10.1002/ajim.10296.