Exhaled air temperature in asthma: methods and relationship with markers of disease
GL Piacentini, D Peroni, E Crestani… - Clinical & …, 2007 - Wiley Online Library
GL Piacentini, D Peroni, E Crestani, F Zardini, A Bodini, S Costella, AL Boner
Clinical & Experimental Allergy, 2007•Wiley Online LibraryBackground Exhaled breath temperature has been proposed as a surrogate marker for the
evaluation of airway inflammation in asthmatic patients. Objective The aim of the present
study was to extend the investigation of exhaled air temperature as a means for the
evaluation of airway inflammation using a professionally developed instrument. Methods
Fifty‐seven children, 41 allergic mild asthmatics and 16 healthy controls have been
evaluated. They underwent exhaled air temperature and lung function measurement. The …
evaluation of airway inflammation in asthmatic patients. Objective The aim of the present
study was to extend the investigation of exhaled air temperature as a means for the
evaluation of airway inflammation using a professionally developed instrument. Methods
Fifty‐seven children, 41 allergic mild asthmatics and 16 healthy controls have been
evaluated. They underwent exhaled air temperature and lung function measurement. The …
Summary
Background Exhaled breath temperature has been proposed as a surrogate marker for the evaluation of airway inflammation in asthmatic patients.
Objective The aim of the present study was to extend the investigation of exhaled air temperature as a means for the evaluation of airway inflammation using a professionally developed instrument.
Methods Fifty‐seven children, 41 allergic mild asthmatics and 16 healthy controls have been evaluated. They underwent exhaled air temperature and lung function measurement. The asthmatic children also underwent exhaled nitric oxide measurement, and hypertonic saline sputum induction for the evaluation of eosinophil (EOS) percentage.
Results The level of exhaled temperature was significantly higher in asthmatics than in controls, being 30.18±0.14°C vs. 27.47±0.24°C (P<0.001). In asthmatic children, a positive relationship was observed between exhaled air temperature and both exhaled nitric oxide (r=0.39; P=0.01) and EOS percentage in samples from induced sputum (ρ=0.53; P=0.04).
Conclusion The data from the present study support the hypotheses that exhaled breath temperature is related to the degree of airway inflammation in asthma.
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