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    The comparison of the result of exercise bronchoprovocation test and methacholine bronchoprovocation test in athletes
    (2004) Dal, Ugur; Akkurt, Ibrahim; Erdal, Sena
    The excess contraction respond of the bronchiols to the specific and non-specific agent is called bronchial hyperresponsiveness. In our study we compared the result of exercise bronchoprovocation test and methacholine bronchoprovocation test in athletes (group I) and in sedentary subjects (group II). The subjects that their age, height, weight and environmental status of the test room (temperature and humidity) were not statistically different, they gave statistically different respond to the methacholine bronchoprovocation test (p< 0.05). Their respond to exercise bronchoprovocation test was similar and there was no statistically difference between two groups (p> 0.05). In group I, there was a correlation in the result of exercise bronchoprovocation test and methacholine bronchoprovocation test (r= 0.60, p< 0.05), but in group II there was no correlation in this two tests. The parameters that we use for evaluation of the allergic status (total IgE, eosinophil count, number of atopic subject in groups) were not statistically different (p> 0.05). In both two groups there was a statistically different respond in the result of exercise bronchoprovocation test and methacholine bronchoprovocation test. These findings suggests that methacholine bronchoprovocation test is a more sensitive test for the diagnosis of BHR in athletes and sedantery subjects than exercise bronchoprovocation test.
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    The prevalence of sleep related disorders among the drivers and it's relation with traffic accidents
    (Turkish Assoc Tuberculosis & Thorax, 2006) Dogan, Omer Tamer; Dal, Ugur; Ozsahin, Sefa Levent; Akkurt, Ibrahim; Seyfikli, Zehra
    Studies consistently show that patients with sleep related diseases (SRD) have higher accident rates. Polysomnography (PSG) is the gold standard for the diagnosis of SRD. Sleep habits questionnaires are also useful tool for research of the prevalence of SRD on large populations. The aim of this study is to investigate the prevalence of SRD and SRD related traffic accidents on the whole population of professional drivers in Sivas city. A questionnaire that includes questions about drivers' background such as how long they have been driving, if they had any accidents, and if they drive just in Sivas city or inter state. This questionnaire composed of 50 questions about SRD and was asked to drivers answer them face to face. Three hundred forty male drivers participated for this study. Their mean age was 39.5 +/- 9.3 (21-68) years. The mean driving duration was 13.3 +/- 7.9 years. The percentage of drivers who drove in Sivas was 52.1% and 47.9% of the drivers drove inter state. The percentage of drivers who had at least one accident was 36.3%. The prevalence of habitual snoring, insomnia, sleep apnea, nocturnal myoklonus were 41.2%, 39.1%, 32.9%, and 33.6% respectively. The traffic accident Odds ratio was 1.619 for drivers with habitual snoring (95% CI, 1.034 to 2.536, p= 0.02). In conclusion, this study found out that drivers with habituel snoring seems to have tendency (approximately 2-folds) of involving in traffic accidents than drivers who do not have habituel snoring. Polysomnography of candidate drivers with sleep disordered symptoms has to be logical before giving to driving license.