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    Arsenic related hearing loss in miners
    (W B Saunders Co-Elsevier Inc, 2016) Kesici, Gülin Gökçen; Ünlü, İlhan; Topçu, Arzu Baştürk; Bal, Ceylan Demir; Tutkun, Engin; Yılmaz, Ömer Hınç
    Purpose: Arsenic is a toxic metalloid that carries number of potential risks to human health, although there is little evidence of the ototoxic effect of arsenic. The aim of this study was to identify the relationship between arsenic exposure and hearing loss by measuring blood arsenic concentrations and hearing among miners. Materials and methods: This research is a retrospective case control study. Included in the study were miners employed in a single silver mine whose blood arsenic concentrations were high. A comparison was made on the pure tone audiometry measurements taken from miners exposed only to arsenic (Group 1), those exposed to both arsenic and noise (Group 2) and a control group exposed to neither arsenic nor noise (Group 3). Results: It was found that for both ears at all frequencies, the hearing level of Group 3 was better than the hearing levels of both Group 1 and Group 2. There was no correlation between the blood arsenic levels and hearing levels in both ears. Conclusion: This study has revealed the ototoxic effects of arsenic. As blood arsenic concentrations do not reflect long-term exposure, no correlation was identified between blood arsenic concentrations and hearing levels. Further studies will be needed to clarify the mechanisms involved in the effect of arsenic on hearing. This paper represents the largest study to date focusing on the isolated effects of arsenic on hearing through the use of a clinical auditory test. (C) 2016 Elsevier Inc. All rights reserved.
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    Is there a Risk of Hearing Loss in Dental Technicians? A Case Control Study
    (2019) Kesici, Gülin Gökçen; Ünlü, İlhan; Baştürk, Arzu; Tutkun, Engin
    Aim: Dental technicians are exposed to noise and chemical hazards that may lead to hearingloss in workplace. The aim of this study is to investigate the hearing loss risk of dentaltechnicians working in dental laboratories.Material and Methods: A hundred and five dental laboratory technicians who applied toAnkara Occupational Diseases Hospital for periodic check and 120 control subjects wereincluded in the study. All of the subjects in both the dental technician and control groups weremale. Audiograms of dental laboratory technicians was compared with audiograms of controlsubjects. Mann Whitney-U test and Spearman correlation analysis were used for statisticalanalysis of data.Results: The hearing threshold values of the dental technicians at all frequency in both earswere found to be significantly higher than the control group. There were statistically significantcorrelation between age and hearing thresholds at all frequencies (except at 250 Hz and 1000Hz) in dental technician group. There were statistically significant correlation between age andhearing thresholds at only 4000 Hz and 8000 Hz in control group. It was found that there werestatistically significant correlations between exposure time and hearing thresholds at 2, 4 and8 kHz frequencies in dental technician group.Conclusion: Results of this study indicate that hearing loss is a serious occupational healthproblem in dental technicians. Dental technicians are exposed to noise and chemical hazardsthat may constitute a risk for hearing loss. Dental technicians must take preventive measuresfor hearing loss during working.
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    Occupational allergy to dog among police dog trainers
    (Mattioli 1885, 2019) Kesici, Gülin Gökçen; Karataş, Arzu; Ünlü, Y.; Tutkun, Engin
    This study was aimed to reveal the prevalence of dog allergy and other common allergy and allergic symptoms in police dog trainers. Fifty-six police dog trainers and 150 workers as control group were included in this study. Medical records of dog trainers including respiratory, skin, eye symptoms and physical examinations and skin prick test results are compared with the medical records of control group. Positive SPT to dog was present in 21.4% of dog trainers, whereas the frequency of sensitization to dog in the control group was 1.3% (p < 0.001). Dog allergy development risk is found 20 times greater in dog trainers than control group. In multiple logistic regression analysis, it was found that atopy was associated with dog allergy likelihood. Sensitization to dog allergens is an important occupational problem for dog trainers.