World Allergy Congress, İstanbul, Türkiye, 13 - 15 Ekim 2022, cilt.20, sa.1, ss.49, (Tam Metin Bildiri)
Background and Objectives: While it is known that COVID-19 affect the lung parenchyma and vascular
structures, the effect on small airways is not yet to known. Impulse oscillometry (iOS) is an oscillation technique
and can show impedance of the respiratory system and central and peripheral airway resistance. In this study, it
was aimed to determine that airway resistance and obstruction are highly affected after mild-moderate COVID-19
disease in adults with the previous diagnosis of asthma.
Materials-Methods: A cross-sectional real-life study has designed to compare the spirometry and IOS
measurements at third and sixth month after COVID-19 infection of the patients with asthma who are treating
with low or medium inhaled steroids and long acting beta agonist.
Results: The mean age of 41 patients with asthma was 45.5±19.8. FVC and FEV1 were better in 6th month than
3th month after COVID-19 (p<0.041, p<0.037). But there were no difference between the FEV1/FVC, FEV3, FEV6,
R5, R20, R5-R20, AX, x5, Fres in the 3rd and 6th month (p>0.05)
Conclusion: There wasn’t any sign of affection of the airways and especially small airways at the 3 and 6 months
after COVID-19 infection in patients with asthma. The affection of the FVC and relatively FEV1 were recovered
after 6 month of COVID-19 infection.