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    Bronchial hyperreactivity and airway wall thickening in obstructive sleep apnea patients
    (SPRINGER HEIDELBERG, 2011) Sariman, Nesrin; Levent, Ender; Cubuk, Rahmi; Yurtlu, Sirin; Aksungar, Fehime Benli
    Hypoxia/reoxygenation episodes in obstructive sleep apnea (OSA) results in the alteration of the oxidative balance, leading to the development of inflammation. Airway wall thickening and inflammatory changes are suggested as a primary cause of the airway hyperresponsiveness in asthmatics. Bronchial hyperreactivity (BH) may also occur in patients with OSA. We investigated the presence of BH and airway wall thickness in OSA and correlations with inflammatory markers. Sixteen OSA patients and ten controls without allergic diseases were prospectively studied. Plasma pro-B-type natriuretic peptide (pro-BNP), fibrinogen, D-dimer, alpha 1-antitrypsin, and high-sensitive C-reactive protein levels were measured. Airway wall thickness was evaluated with high-resolution CT, and BH was assessed by giving each subject a methacholine challenge test. In OSA patients, bronchial wall thickness, fibrinogen, D-dimer, alpha 1-antitrypsin, high sensitive C-reactive protein, and pro-BNP levels were significantly greater than those in control subjects. Among the 16 patients, three had BH on methacholine challenge. Bronchial wall thickness(mm) was positively correlated with apnea-hypopnea index (AHI: number of apneas + hypopneas/hour of sleep), BMI, respiratory arousal index, nocturnal oxygen desaturation (NOD) duration (time in minutes with a nocturnal arterial oxygen saturation of < 90% during sleep), and alpha 1-antitrypsin levels. NOD duration also correlated with pro-BNP and fibrinogen levels. In OSA patients, walls of central airways were thicker than normal subjects. BH may have occurred in OSA patients. NOD duration correlated with inflammatory parameters and oxygen desaturation index 3% had an effect on the thickness of bronchial walls. But overall, AHI was found to be the only independent predictor of bronchial wall thickness.
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    Evaluation of Clinical and Functional Parameters in Female Subjects With Biomass Smoke Exposure
    (DAEDALUS ENTERPRISES INC, 2013) Koksal, Hulya; Saygi, Attila; Sariman, Nesrin; Alici, Emel; Yurtlu, Sirin; Yilmaz, Huri; Duzgun, Yeliz
    BACKGROUND: Indoor air pollution and exposure to biomass smoke is a risk factor for pulmonary diseases among women in developing countries. We aimed to assess clinical and functional findings and exposure duration and to evaluate their relationships in patients who used biomass products as fuel and who presented to the clinic due to respiratory symptoms. METHODS: Fifty-five patients who had been referred to the hospital between January 2008 and December 2010 and who met the inclusion criteria were accepted to the study. Data on the place they live, biomass exposure duration, lung function parameters, and arterial blood gases were recorded. RESULTS: Statistically significant differences in FEV1%, FEV1 (L) and, FEV1/FVC existed between the subgroups of duration of biomass exposure (P = .001). FEV1% and FEV1/FVC were highest in the <30 hour-years exposure group. In the presence of animal dung use, the odds ratio and 95% CI for the risk of FEV1/FVC < 70% was 3.5 (0.88-10.29). Subjects who used animal dung and wood for cooking and heating had severe and very severe FEV1 stages. CONCLUSIONS: Biomass exposure can have effects on lung function test parameters. Animal dung use is primarily related to risk of deterioration of FEV1/FVC, when compared to other biomass fuels. Protective health measures should be taken by assessing the risks in areas where biomass exposure is intense, improving poor design of the stoves and ventilation, and switching to better clean energy sources such as natural gas and solar energy.
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    Obstructive sleep apnea syndrome and anthropometric obesity indexes
    (SPRINGER HEIDELBERG, 2012) Soylu, Akin Cem; Levent, Ender; Sariman, Nesrin; Yurtlu, Sirin; Alparslan, Sumeyye; Saygi, Attila
    The purpose of this study is to investigate whether the general body adiposity or regional adiposity was a risk factor in the evolution of obstructive sleep apnea syndrome (OSAS) by examining the relationships between the anthropometric obesity indexes such as waist (WC) and neck circumference index (NC), body mass index (BMI), and OSAS in Turkish adult population, and to access the possible differences by gender. The data related to polysomnographic, demographic, and anthropometric indexes of the 499 subjects were examined retrospectively. The patients whose apnea-hypopnea index was a parts per thousand yen5 were determined as OSAS group. The avarage BMI, WC, and NC of the OSAS group (n = 431) were statistically higher than the control group (p < 0.001). According to logistic regression analysis, BMI, WC, and NC enlargement were observed as significant risk factors for OSAS development. Risk coefficients were determined 5.53 for NC, 4.48 for WC, and 2.22 for BMI. Cutoff point values for anthropometric obesity indexes as OSAS determiner were recorded as below: BMI for male > 27.77 kg/m(2) and female > 28.93 kg/m(2), NC index for male > 40 cm and female > 36 cm, and WC index for male > 105 cm and female > 101 cm. BMI, WC, and NC enlargement were determined as significant risk factors for OSAS development. This was an initial study to determine the cutoff points of which increase the OSAS risk in BMI, WC, and NC index in Turkish adult population.