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Related Concept Videos

Pulse Oximetry01:24

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Conducting Respiratory Oscillometry in an Outpatient Setting
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Impulse oscillometry: The state-of-art for lung function testing.

Koundinya Desiraju1, Anurag Agrawal1

  • 1Center of Excellence for Translational Research in Asthma and Lung Disease, CSIR Institute of Genomics and Integrative Biology, New Delhi, India.

Lung India : Official Organ of Indian Chest Society
|September 1, 2016
PubMed
Summary

Impulse oscillometry (IOS) offers a passive, non-cooperative method to measure lung mechanics. This technique is more sensitive than spirometry for detecting early small airway disease in conditions like asthma and COPD.

Keywords:
Impulse oscillometrylung functionobstructive airway diseasesmall airway obstruction

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Area of Science:

  • Respiratory Physiology
  • Pulmonary Function Testing

Background:

  • Impulse oscillometry (IOS) is a passive lung mechanics measurement technique.
  • It utilizes sound waves during tidal breathing to assess airflow resistance and energy storage.
  • IOS requires minimal patient cooperation, making it suitable for individuals unable to perform spirometry.

Purpose of the Study:

  • To discuss the principles and techniques of IOS.
  • To review the applications of IOS in obstructive airway diseases.

Main Methods:

  • Superimposing sound waves onto normal tidal breathing.
  • Measuring flow and pressure disturbances to calculate lung mechanics parameters.
  • Calculating resistance to airflow and reactive parameters.

Main Results:

  • IOS can differentiate small from large airway obstruction.
  • It is more sensitive than spirometry for peripheral airway disease.
  • IOS parameters may predict asthma control loss and identify early airway disease in smokers.

Conclusions:

  • IOS is a valuable tool for assessing lung mechanics, particularly in obstructive airway diseases.
  • Its sensitivity surpasses spirometry in detecting early peripheral airway changes.
  • IOS shows promise in monitoring asthma and identifying early disease in smokers.