Analysis of lung function in children with respiratory diseases and its clinical application

Objective: To evaluate the clinical application of lung function analysis in diagnosis of children respiratory diseases. Methods: Respiratory function was evaluated with portable lung function detector in 6 261 children with respiratory diseases.FEV_(1),FVC and PEFR were measured in 268 children with cough variant asthma (CVA) and 147 children with asthma (AS),and the results were self-compared during follow-up. Results: There were no significant differences in above parameters between children with cough variant asthma and those with asthma (P0.05).Lung functions of asthma children were improved evidently by administration of glycocorticoid inhalator (P0.001). Conclusion: Lung function detection is essential for diagnosis of asthma and it can be used as a reliable index for therapeutic effect of asthma children.[