Characteristics of Clinical and Pulmonary Function Changes in Patients with Cough Variant Asthma

Objective To explore the characteristics of clinical and pulmonary functional changes in patients with cough van ant asthma (CVA).Methods Clinical changes, pulmonary function changes and/or bronchial responsiveness were measured and analysed in 30 cases with CVA and 20 cases healthy subjects.Results:There is no obvious abnormality on pulmonary function in patients with CVA. The patients of CVA have a high bronchial response.Conclusion It is helpful to measure the pulmonary function and bronchial responsiveness on the diagnosis of CVA.