A202 lack of concordance between feno and spirometry in patients with chronic cough

Cough variant asthma (CVA) is a type of asthma in which the main symptom is a dry, non-productive chronic cough (CC) in the absence of wheezing or shortness of breath (Corrao WM. Allergy Asthma Proc. 2018; 39: 466). The condition is frequently underdiagnosed, since baseline spirometric values are usually normal. Since airway inflammation is the basis of CVA, fractional exhaled nitric oxide (FeNO) is often used for patient evaluation but is still open to question. We aimed to explore the value of FeNO measurements in diagnosing patients with CC suspected to have CVA.

Source: Annals of Allergy, Asthma and Immunology - October 31, 2019 Category: Allergy & Immunology Authors: T. Nsouli, N. Diliberto, S. Nsouli, S. Zamora, A. Nsouli, J. Bellanti Source Type: research