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Conducting Respiratory Oscillometry in an Outpatient Setting
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Impulse oscillometry and obesity in children.

Maíra S de Assumpção1, José D Ribeiro1, Renata M G Wamosy2

  • 1Universidade Estadual de Campinas (Unicamp), Departamento de Pediatria, Campinas, SP, Brazil.

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|August 27, 2017
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Summary

Obese children exhibit increased impulse oscillometry parameters indicating airway obstruction compared to normal-weight children. Overweight children may also show early changes in these lung function measures.

Keywords:
ChildrenCriançasObesidadeObesityOscillometryOscilometria

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Area of Science:

  • Pediatric Pulmonology
  • Respiratory Physiology
  • Obesity Research

Background:

  • Childhood obesity is a growing public health concern.
  • Obesity can impact respiratory health and lung function.
  • Impulse oscillometry is a non-invasive method to assess respiratory mechanics.

Purpose of the Study:

  • To compare impulse oscillometry system parameters between normal-weight, overweight, and obese children.
  • To identify potential early indicators of airway obstruction in overweight and obese children.

Main Methods:

  • 81 children (30 normal-weight, 21 overweight, 30 obese) underwent spirometry and impulse oscillometry.
  • Lung function tests followed American Thoracic Society standards.
  • Respiratory mechanics were assessed using the Jaeger™ MasterScreen™ Impulse Oscillometry System.

Main Results:

  • No significant spirometry differences were found among groups.
  • Obese children showed significant differences in respiratory impedance, resistance at 5 Hz, resonant frequency, and reactance area compared to normal-weight children.
  • Differences in resistance at 5 Hz, resonant frequency, and reactance area were also observed between control and obese groups when expressed as a percentage of predicted values.

Conclusions:

  • Obese children demonstrate increased impulse oscillometry parameters indicative of airway obstruction.
  • Overweight school-aged children may exhibit detectable changes in certain oscillometry parameters, suggesting potential early respiratory impact.