title: Exhaled breath temperature and exercise-induced bronchoconstriction in asthmatic children.
abstract: It has been hypothesized that exhaled breath temperature (EBT) is related to the degree of airway inflammation/remodeling in asthma. The purpose of this study was to evaluate the relationship between the level of airway response to exercise and EBT in a group of controlled or partly controlled asthmatic children. Fifty asthmatic children underwent measurements of EBT before and after a standardized exercise test. EBT was 32.92 ± 1.13 and 33.35 ± 0.95°C before and after exercise, respectively (P < 0.001). The % decrease in FEV(1) was significantly correlated with the increase in EBT (r = 0.44, P = 0.0013), being r = 0.49 (P < 0.005) in the children who were not receiving regular inhaled corticosteroids (ICS) and 0.37 (n.s.) in those who were. This study further supports the hypothesis that EBT can be considered a potential composite tool for monitoring asthma.
authors: Department of Paediatrics, University of Verona, Verona, Italy.
authors: Diego G
authors: DG
authors: Peroni
authors: Iolanda
authors: I
authors: Chinellato
authors: Michele
authors: M
authors: Piazza
authors: Federica
authors: F
authors: Zardini
authors: Alessandro
authors: A
authors: Bodini
authors: Francesca
authors: F
authors: Olivieri
authors: Attilio L
authors: AL
authors: Boner
authors: Giorgio L
authors: GL
authors: Piacentini
mesh_terms: D000293:Adolescent; D001249:Asthma / Q000378:metabolism*; D001250:Asthma, Exercise-Induced / Q000378:metabolism*; D001831:Body Temperature / Q000502:physiology*; D001944:Breath Tests; D016084:Bronchoconstriction / Q000502:physiology*; D002648:Child; D003430:Cross-Sectional Studies; D005080:Exercise Test; D005260:Female; D006801:Humans; D007249:Inflammation / Q000378:metabolism*; D008297:Male; D012129:Respiratory Function Tests; D013696:Temperature