What question did this study set out to answer?

To assess the utility of impulse oscillometry in evaluating airway resistance and small-airway function in patients with chronic obstructive pulmonary disease (COPD).

March 12, 2026Open Access

Use of Impulse Oscillometry in Patients with Chronic Obstructive Pulmonary Disease

Q: What does this research mean for the field?

Impulse oscillometry (IOS) can effectively assess airway resistance and small-airway function in patients with chronic obstructive pulmonary disease (COPD). Novelty: ClaimNovelty.CONFIRMATORY. Consensus alignment: ConsensusAlignment.SUPPORTS_CONSENSUS.

BŞBayram ŞahinKocaeli Üniversitesi NKNurdan Köktürk

Key Points

To assess the utility of impulse oscillometry in evaluating airway resistance and small-airway function in patients with chronic obstructive pulmonary disease (COPD).
Evaluated airway resistance in patients with COPD using impulse oscillometry (IOS)
Compared IOS parameters with standard pulmonary function tests (PFTs)
Analyzed correlations between IOS measurements and small-airway function
Airway resistance was significantly increased in the COPD group
IOS parameters correlated with PFT measures of small-airway function
IOS detected changes in patients' symptoms effectively

Abstract

This study showed that airway resistance was increased in the COPD group and that IOS parameters were associated with measures of small-airway function in standard PFTs. IOS can be used as a non-invasive, patient-friendly method that complements PFTs by providing a comprehensive assessment of COPD pathology and pathophysiological changes and detecting changes in symptomatic patients.

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