Impulse oscillometry in preschool children with persistent asthma can predict spirometry at school age.

Background: Lung function in children with persistent asthma may be impaired during preschool and school ages. The aim of this study was to describe if some preschool impulse oscillometry (IOS) parameters are related to spirometry alterations on reaching school age.

Methods: In 66 diagnosed with persistent asthma, an IOS was performed at entrance and followed-up to school age where a spirometry was done.

Evolutionary lung function evaluated by impulse oscillometry in preschoolers with asthma.

Introduction: Impulse oscillometry (IOS) is useful for measuring lung function in preschool children. Our objec tive was to describe the alterations and evolutionary profile of IOS in asthmatic children under 6 years of age after one year of follow-up.

Patients And Method: 62 preschoolers performed IOS at the begin ning of the study and after one year.