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Spirometry and Impulse Oscillometry in Preschool Children: Acceptability and Relationship to Maternal Smoking in

Meyer Kattan1, Leonard B Bacharier2, George T O'Connor3

  • 1Department of Pediatrics, Columbia University College of Physicians and Surgeons, New York, NY.

The Journal of Allergy and Clinical Immunology. in Practice
|February 17, 2018
PubMed

Insights

Spirometry was more acceptable for young children than impulse oscillometry (IOS). However, IOS may better indicate peripheral airway function in preschoolers, despite lower maneuver acceptability.

Area of Science:

  • Pediatric pulmonology
  • Respiratory diagnostics

Background:

  • Limited data exist on the technical acceptability and clinical correlations of spirometry and impulse oscillometry (IOS) in young children.
  • Large-scale studies focusing on African American and Hispanic children are lacking.

Purpose of the Study:

  • To compare the acceptability of spirometry and IOS in children aged 3 to 5 years.
  • To examine the association between maternal smoking during pregnancy and subsequent lung function in children.

Main Methods:

  • Spirometry and IOS were performed on children aged 3, 4, and 5 years within the Urban Environmental and Childhood Asthma Study cohort.
  • Key measurements included forced expiratory volume in 0.5 seconds (FEV0.5) via spirometry and area of reactance (AX), resistance at 5 Hz (R5), and reactance at 5 Hz (X5) via IOS.

Main Results:

  • Acceptable spirometry maneuvers were more frequent than IOS maneuvers at ages 3 (60% vs. 46%) and 5 (89% vs. 84%).
  • Maternal smoking during pregnancy correlated with increased AX at ages 4 and 5, but not with FEV0.5.
  • Trends indicated improved lung function (higher FEV0.5, lower R5 and AX) over time in children without recurrent wheeze.

Conclusions:

  • Spirometry demonstrates higher maneuver acceptability in preschool children compared to IOS.
  • IOS may offer superior insights into peripheral airway function in this age group, despite lower technical success rates.
Abstract

Keywords:
African AmericanEpidemiologyForced oscillation techniqueHispanicPediatric pulmonary function testingWheezing

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