[Neuropsychological effects of "perchloroethylene" on exposed dry cleaning workers]

"Perchloroethylene" is a solvent widely used in dry cleaning industry. Various effects on liver, kidney, nervous and cardiovascular systems have been attributed to exposure to this solvent. In this study we assessed some of the neuropsychological effects of chronic exposure to perchloroethylene on exposed dry cleaning workers. 40 exposed and 40 non exposed workers were compared in this historical cohort study. The researchers collected the data using a questionnaire and a check list. Frequency of selected neuropsychological effects were evaluated and compared in each group by means of statistical software. After adjustment for age and educational status, the frequency of depression in exposed group and non-exposed group was calculated to be%42/5 and%22/5 respectively [P=0/056]. Frequency of memory loss was higher in exposed group [%27/5] compared to non-exposed group [%17/5] [P>0.05] and the frequency of repetitive checking was surprisingly higher in non-exposed group and this difference was statistically significant [P<0/05]. The observed difference in "frequency of depression" in exposed and non exposed workers in our study was consistent with findings of previous studies. We were not able to demonstrate any statistically significant relation between perchloroethylene exposure and other neuropsychological effects. Our findings of "repetitive checking" was unexpectedly in contrast to the findings of previous studies

Adverse reaction to latex containing materials in health care workers

Latex allergy has become an occupational hazard among healthcare workers. Atopy, intensity and duration of exposure have been recognized as predisposing factors for latex sensitization. Frequency of sensitization varies among countries. So we decided to investigate the prevalence of latex sensitization and potential risk factors among healthcare workers in a general hospital. In a cross sectional study by distributing a questionnaire among 876 employees of a general hospital, we investigated the prevalence of latex allergy and the potential risk factors for latex sensitization. We collected information about occupational history, including specific tasks performed, time of first exposure to latex, number of pairs of gloves used, and duration of weekly exposure. We also investigated the interval between first exposure and onset of symptoms. We asked about pre-existing rhinoconjuctivitis, asthma, atopic and contact dermatitis, hay fever, autoimmune diseases, and food allergies. This survey documented a high prevalence of adverse reaction to all latex containing materials [52.5%]. 37.7% of responder had adverse reaction to latex gloves. The highest prevalence of adverse reaction to all latex containing materials was found in the surgical operating room, followed by emergency unit and internal medicine wards. According to this study, frequency of adverse reaction to latex was high among health care workers. This may be due to relatively low response rate, low quality of latex products in Iran, and the method of measurement. Whenever, the need for implementing prevention program, using latex-free methods and training of employees to reduce adverse reaction to latex is apparent