Browsing by Author "Yuksel, Hasan"

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Epidemiology and Burden of Rhinitis and Rhinoconjunctivitis in 9-To 11-Year Children
(Sage Publications inc, 2010) Civelek, Ersoy; Yavuz, Suleyman Tolga; Boz, Aysen Bingol; Orhan, Fazil; Yuksel, Hasan; Uner, Abdurrahman; Sekerel, Bulent E.
Background: Rhinoconjunctivitis (RC) is regarded as the most common chronic disease of childhood; however, the currently available epidemiological studies on prevalence, burden, and risk factors of RC are insufficient. This analysis aimed to investigate potential risk factors, symptom frequency, and burden of RC. Methods: Using the International Study of Asthma and Allergies in Childhood Phase II questionnaires, 6963 elementary school children aged 9-11 years were surveyed in five different city centers of Turkey. All participants were skin-prick tested with common aeroallergens. Results: The prevalence of ever rhinitis, physician-diagnosed rhinitis, current rhinitis, and current RC were 51.6, 31.0, 43.5, and 23.1%, respectively; 19.8% of children with RC symptoms were atopic to at least one allergen. Among students with RC symptoms, 42.2, 23.9, 35.8, and 28.2% reported moderate severe interference of daily activities, at least 1 day of absence from school, visit to a health care professional, and any drug usage for rhinitis, respectively. Nasal decongestants and oral antihistamines were the most frequently used treatment. Approximately 70% of RC patients reported perennial symptoms and 42.8% were classified as mild to intermittent. Multivariate logistic regression analysis revealed family history of asthma and/or allergic rhinitis (odds ratio [OR] = 1.863; confidence interval, [CI] = 1.583-2.191; p < 0.001), living in a house with mold and dampness in the 1st year of life (OR = 1.651; CI = 1.356-2.01; p < 0.001), maternal smoking in pregnancy (OR = 1.425; CI = 1.089-1.864; p = 0.011), low monthly income (OR = 1.685; CI = 1.422-1.998; p = 0.001), current wheezing (OR = 2.543; CI = 2.151-3.006; p = 0.001), and current atopic eczema (OR = 2.503; CI = 1.96-3.196; p = 0.001) as significant risk factors for current RC. Conclusion: Along with the high prevalence of RC in childhood, underdiagnosis and undertreatment of the disease are also frequent. The socioeconomic burden of the disease can be reduced by increasing awareness and proper diagnosis/treatment. (Am J Rhinol Allergy 24, 364-370, 2010; doi: 10.2500/ajra.2010.24.3484)
Relation Between Vascular Endothelial Markers and Right Ventricular Function in the Children With Asthma
(Kowsar Corp, 2017) Cetin, Mecnun; Karaboga, Bertan; Yilmaz, Ozge; Yilmaz, Munevver; Yuksel, Hasan; Coskun, Senol
Objectives: The aim of the study was to evaluate the possible relationship of clinical severity during asthmatic exacerbation with the ventricular functions and the levels of vascular endothelial-related biomarkers endothelin-1 (ET-1) and platelet-derived growth factor-BB (PDGF-BB) in the condensed breathing air in the children with asthma. Methods: The study included a total of 80 children with acute asthmatic episode; of these, 28 had a mild, 26 had a moderate, and 26 had a severe attack. Samples of condensed breathing air were obtained for being analyzed for ET-1 and PDGF-BB levels during the study. All patients were evaluated by echocardiography at the beginning of the study and two weeks after the treatment of asthmatic episode. Results: Before treatment, mPAP in moderate and severe asthma groups was significantly higher than in mild asthma group (21.6 +/- 7.3, 30.1 +/- 9.8 and 32.7 +/- 7.8; P < 0.01, P < 0.001, respectively). After treatment, no significant difference was detected between the asthma groups (P > 0.05). Am and Em waves, and IVRT, IVCT, ET and RV MPI during the asthmatic attack and after treatment did not change significantly between the groups; pre-and post-treatment values of these parameters also did not show significant differences. In exhaled air samples of the group with severe asthma exacerbation ET-1 and PDGF-BB were higher than those in the moderate and mild group (0.80 +/- 0.42, 0.58 +/- 0.30, 0.50 +/- 0.15; P = 0.002 and 281.7 +/- 253.2, 167.3 +/- 148.1, 135.9 +/- 74.9; P = 0.008 respectively). Conclusions: Ourstudy resultsshowedthatmPAPin direct proportion with the increasedinflammatory cytokineswassignificantly higher in asthma attacks and levels of ET-1 and PDGF-BB were significantly increased with severity of asthma, indicating a vascular response.
Risk Factors for Current Wheezing and Its Phenotypes Among Elementary School Children
(Wiley, 2011) Civelek, Ersoy; Cakir, Banu; Orhan, Fazil; Yuksel, Hasan; Boz, Aysen B.; Uner, Abdurrahman; Sekerel, Bulent E.
Background Accumulating evidence suggests, asthma includes many phenotypes with varying clinical and prognostic features. Epidemiological surveys documented a number of environmental risk factors for the development of asthma and interestingly these differ between and within countries, suggesting that the differences may be related with the different distribution of asthma phenotypes. This study aimed to investigate risk factors of current wheezing (CW) and different wheezing phenotypes in elementary school children. Methods Six thousand nine hundred sixty-three 9- to 11-year-old children of a previous multicenter survey where the methodology of the International Study of Asthma and Allergies in Childhood (ISAAC) Phase-II was used were analyzed. Wheezing phenotypes were defined as wheezing with rhinitis (RW), wheezing with rhinoconjunctivitis (RCW), atopic wheezing (AW), non-atopic wheezing (NAW), and frequent wheezing (FW) (>= 4/year wheezing episodes). Results The prevalence of CW was 15.8% and among these, 22.4%, 67.3%, 45.9%, 20.5%, and 79.5% were classified as FW, RW, RCW, AW, and NAW, respectively. History of parental asthma/allergic rhinitis, coexistence of other allergic diseases, presence of mold and dampness in the house lived during the first year of life and maternal smoking in pregnancy were found to be risk factors for most phenotypes (odds ratio (OR) ranged from 1.43 to 3.56). Number of household in the last year (OR = 1.14), prematurity (OR = 2.08), and duration of breastfeeding (OR = 1.02) per additional month were found to be risk factor for FW, AVV, and RCW, respectively. Conclusion Beside common risk factors for the development of asthma and its phenotypes, certain risk factors appeared to play a role in the development of phenotypic characteristics of asthma. These findings support our hypothesis that each phenotype has not only different clinical characteristics but also has different roots. Pediatr Pulmonol. 2011; 46:166-174. (C) 2011 Wiley-Liss, Inc.