Impulse oscillometry is a lung function test that has become more widely used over the past 30 years. It is particularly useful in patients who have difficulty performing forced respiratory maneuvers, such as preschool children, who have shorter expiration times, less strength to inhale, less coordination and shorter attention spans than older children or adults. At preschool age, oscillometry has a higher success rate than spirometry and is more sensitive in detecting changes in lung function in the diagnosis and monitoring of asthma. This review summarizes the available scientific evidence supporting its use in the diagnosis, measurement of control, severity, monitoring and follow-up of preschool asthma.

Asthma, Preschool, Impulse oscillometry