Faculty of Medicine

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Author: search.filters.author.Risteska-Kuc, SnezanaSubject: search.filters.subject.Occupational exposure

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    Exercise-induced bronchoconstriction in female cleaners: effect of smoking
    (Арбилис - София, 2007)
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    Risteska-Kuc, Snezana
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    Stojanovski, Zoran
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    Background. Airborne particles and pollutants, such as dust, tobacco smoke and automobile exhaust, are considered as stimulants that contribute to the development of exercise-induced bronchoconstriction (EIB). Objective. To evaluate prevalence of EIB and its relation to smoking in female cleaners. Methods. We performed a cross-sectional study including 43 female cleaners aged 26 to 57 (mean age 36.9±7.6), with duration of exposure 5 to 24 years (mean duration 11.6±5.5). In addition, 45 female office workers (aged 27 to 58, mean age 38.1±5.7) were studied as a control. Evaluation of exposed and unexposed workers included completion of a questionnaire, skin prick tests to common aeroallergens, spirometry, and constant submaximal exercise challenge test (ECT) on cycle ergometer. Results. We found similar EIB prevalence in both cleaners and office workers (9.3% vs. 6.7%; P=0.276). Bronchial reaction to exercise, expressed as a mean fall index FEV1, was significantly greater in ECT positive cleaners (23.4% vs. 16.1%, P=0.041). EIB was strongly linked to atopy and positive family history for asthma in both groups. EIB was non-significantly associated with daily smoking in office workers (P=0.276), whereas in cleaners that association just missed significance (P=0.074). Association between EIB and daily mean of cigarettes consumed was significant in smoking cleaners (P=0.039), whereas its association with smoking experience was non-significant in both groups. Bronchial reaction to exercise was significantly greater in exposed than in unexposed smokers (9.4% vs. 4.5%; P=0.036). Association of EIB with exand passive smoking was non-significant in both occupation groups. Conclusions. Our data suggest that daily smoking could interact with workplace exposure in development and severity of EIB in female cleaners.
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    Bronchial hyperresponsiveness in women cooks and cleaners
    (Walter de Gruyter GmbH, 2007-06)
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    Risteska-Kuc, Snezana
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    The aim of this cross-sectional study was to assess the prevalence and characteristics of bronchial hyperresponsiveness (BHR) in 43 women cleaners (aged 26 to 57) and 37 women cooks (aged 29 to 55) and compare them with 45 controls (women office workers aged 27 to 58). The evaluation of all subjects included a questionnaire, skin prick tests to common aeroallergens, spirometry, and histamine challenge (PC20 < or = 8 mg mL(-1)). We found higher BHR prevalence in cleaners and cooks than in office workers (30.2 % and 29.7 %, vs. 17.7 %, respectively), but statistical significance was not reached. The prevalence of mild and moderate to severe BHR was similar in all groups. Borderline BHR prevalence was significantly higher in cleaners than in controls (16.2 % vs. 6.6 %, P=0.032) whereas the difference was on the verge of significance in cooks (13.5 % vs. 6.6 %, P=0.081). Moderate to severe BHR was strongly associated with positive family history of asthma and atopy in all groups. Mild BHR was significantly associated with daily smoking in cleaners (P=0.031) and cooks (P=0.021), as well as with the duration of exposure in cleaners (P=0.038). Borderline BHR was closely related to daily smoking and duration of exposure in both cleaners and cooks. Our findings indicate an important role of workplace exposure in borderline BHR development, as well as the significant effect of smoking on mild BHR development in women cleaners and cooks.
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    Exercise-induced bronchoconstriction in textile and agricultural workers and in bakers
    (SCIENDO, 2006-12)
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    Risteska-Kuc, Snezana
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    To assess the prevalence and the characteristics of exercise-induced bronchoconstriction (EIB) in subjects occupationally exposed to organic dusts we performed a cross-sectional study including 152 exposed subjects (67 textile workers, 42 agricultural workers, and 43 bakers) and 72 unexposed controls. Evaluation of exposed and unexposed subjects included a questionnaire, skin prick tests to common inhalant allergens, spirometry, and exercise challenge tests (ECT). The EIB prevalence found in textile workers was 8.9 %, in agricultural workers 7.1 %, in bakers 6.9 %, and in office workers 5.5 %. The highest bronchial reaction to exercise was found in ECT-positive agricultural workers (26.1+/-6.9), followed by textile workers (25.2+/-7.4), bakers (23.0+/-5.8), and office workers (21.8+/-4.4). EIB was significantly associated with atopy and positive family history of asthma in all exposed groups. EIB was significantly associated with smoking duration in textile workers (P=0.039) and agricultural workers (P=0.027). Bronchial reaction to exercise was significantly greater in smoking than in non-smoking textile (P=0.045) and agricultural workers (P=0.032). Our data suggest that the combination of daily smoking and workplace exposure to certain types of organic dusts could contribute to EIB development and severity.
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    Chronic Obstructive Pulmonary Disease in Never-Smoking Bricklayers
    (ID Design 2012/DOOEL Skopje, 2013-12-15)
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    Risteska-Kuc, Snezana
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    Background: Chronic obstructive pulmonary disease (COPD) due to occupational exposures remains an important public health problem taking significant toll on the global burden of the disease. Aim: In order to assess chronic prevalence and characteristics of COPD in bricklaying we performed a cross-sectional study including 47 never-smoking male bricklayers (aged 34 to 57 years) and an equal number of never-smoking male office workers studied as a control. Methods: Evaluation of examined subjects consisted of completion of a questionnaire, baseline spirometry, and bronchodilator reversibility testing. Results: We found higher prevalence of respiratory symptoms in bricklayers with significant difference for cough and phlegm. Majority of the chronic respiratory symptoms in bricklayers were work-related. The mean values of all measured spirometric parameters in bricklayers were significantly lower than in office workers. The prevalence of COPD was significantly higher in bricklayers than in office workers (14.9% vs. 4.3%, P = 0.034). COPD in both examined groups was close related to age over 45 years, while in bricklayers significant association was registered for duration of occupational exposure longer than 20 years and work-related respiratory symptoms. Conclusion: Our findings support data about relationship between occupational exposure to inorganic dust and fumes in construction workers and persistent airflow limitation.