The exhaled breath fraction temperature measures the level of inflammation of the respiratory tract. The objective was to measure the exhaled breath temperature in patients with respiratory allergy.
Case-control study, retrospective, transversal, observational and descriptive. Patients between 18-75 years were evaluated, both genders with diagnosis of respiratory allergy, to whom the exhaled breath temperature was measured to compare it with the level of inflammation of the respiratory tract according to the T1/T3 relation of the FracTAir machine.
199 patientes were included, 28.8% males, 71.2% females, with a median age of 29.7 years. 71.9% were allergic patients and 28.1% were controls, 23.6% had asthma diagnosis and 48% rhinitis. The exhaled breath fraction temperature was measured comparing controls vs respiratory allergy, the T1max on the allergic group was 25.80 vs controls with a median 26.03 with p=0.418, the T3 median on the allergic group was 29.01 vs controls median 29.49 with p=0.045, with a T1/T3 median relation on the allergic group of 11.04 vs controls median was 11.45 with p=0.441 respiratory frequency was measured finding with p=0.003. With statistic significance p=0.05. Therefore, values are statistically significative in patients with respiratory allergy vs controls on T3 which correlates with inflammation of the periferic respiratory tract.
The measurement of exhaled breath fraction temperature in patients with respiratory allergy is a non-invasive measurement method which can relate to the level of inflammation of the respiratory tract in allergic patients