To the Editor:
We read with interest the manuscript of Piacentini et al. 1. This paper shows that exhaled breath temperature plateau and exhaled nitric oxide (NO) are correlated in children with asthma.
This finding is interesting considering that NO is a marker of inflammation and that exhaled breath temperature may also be used to assess inflammation in the airways in a noninvasive way. We previously showed a similar correlation between exhaled NO and breath temperature in adults 2. However, we measured the rate of exhaled breath temperature increase (Δe°T) rather …