title: FeNO levels in children with asthma and other diseases of the lung.
abstract: BACKGROUND
  Prolonged cough in children is one of the major complaints seen in hospitals. It is difficult to make a proper diagnosis and start the appropriate treatment. Fraction of exhaled nitric oxide (FeNO) measurement is a valuable non-invasive diagnostic tool in determining the cause of prolonged cough in children. Although there are several studies on asthma and COPD, there is a lack of them on other lung diseases such as tuberculosis, bronchiectasia, bronchiolitis obliterans (BO), and pneumonia.
  
  
  METHODS
  In this study, pre-treatment FeNO levels of patients with various lung diseases were measured and results from the sick patient groups were compared with the results from the control group.
  
  
  RESULTS
  Pre-treatment FeNO levels in BO, asthma, and tuberculosis patient groups were higher than in the control group (p < 0.001). There was no significant difference between the acute bacterial pneumonia and bronchiectasia groups, and the control group (p > 0.05).
  
  
  CONCLUSIONS
  FeNO measurement is a highly important guiding tool in diagnosis and treatment of various lung diseases.
authors.affiliation: Department of Pediatric Pulmonology, Medical Faculty, Dicle University and Department of Pediatrics, Diyarbakir, Turkey. selvikelekci@gmail.com  
authors.forename: S
authors.initials: S
authors.lastname: Kelekçi
authors.forename: V
authors.initials: V
authors.lastname: Sen
authors.forename: I
authors.initials: I
authors.lastname: Yolbas
authors.forename: Ü
authors.initials: Ü
authors.lastname: Uluca
authors.forename: I
authors.initials: I
authors.lastname: Tan
authors.forename: M F
authors.initials: MF
authors.lastname: Gürkan
mesh_terms: D000293:Adolescent; D001249:Asthma / Q000175:diagnosis* / Q000378:metabolism; D001944:Breath Tests; D002648:Child; D005260:Female; D006801:Humans; D008171:Lung Diseases / Q000175:diagnosis* / Q000378:metabolism; D008297:Male; D009569:Nitric Oxide / Q000032:analysis* / Q000502:physiology
chemical_list: D009569:Nitric Oxide