A Comparison of Impulse Oscillometry and Spirometry by Percent Predicted in Identifying Uncontrolled Asthma.

Chalerm Liwsrisakun, Chaicharn Pothirat, Athavudh Deesomchok, Pilaiporn Duangjit, Warawut Chaiwong

Abstract readComparative Study

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Article in Advances in respiratory medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

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2citing papers in PubMed

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1 · What the graph read from it

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3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

Small airway dysfunction across alpha-1 antitrypsin deficiency genotypes with preserved spirometry.European journal of applied physiology · 2026
Article
Clinical Utility of Impulse Oscillometry Parameters in Predicting Asthma Exacerbations.Tuberculosis and respiratory diseases · 2026
Article

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5 · Who and what money

Authors and funding

5 authors.

Chalerm LiwsrisakunDivision of Pulmonary, Critical Care and Allergy, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.

Chaicharn PothiratDivision of Pulmonary, Critical Care and Allergy, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.ORCID 0000-0003-0616-7066

Athavudh DeesomchokDivision of Pulmonary, Critical Care and Allergy, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.ORCID 0000-0003-1375-4541

Pilaiporn DuangjitDivision of Pulmonary, Critical Care and Allergy, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.

Warawut ChaiwongDivision of Pulmonary, Critical Care and Allergy, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.ORCID 0000-0003-4459-7681

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe role of impulse oscillometry (IOS) in evaluating asthma control remains a challenge because the interpretation varies by many factors, including ethnicity. We aimed to assess the diagnostic contribution of spirometry and IOS, established from reference equations, in the detection of uncontrolled asthma.

methodsThis retrospective study was conducted in adult asthma subjects with normal spirometry. Uncontrolled asthma was defined as an Asthma Control Test (ACT) score ≤ 19. Receiver operating characteristic (ROC) curves were plotted to compare the diagnostic abilities of the %-predicted of heterogeneity of resistance at 5 Hz and 20 Hz (R5-R20) and the %-predicted of forced expiratory volume in the first second (FEV

resultsThe %-predicted of R5-R20 demonstrated a superior diagnostic ability for detecting uncontrolled asthma compared to the %-predicted FEV

conclusionsIOS demonstrated better diagnostic ability for detecting uncontrolled asthma than spirometry.

Indexed as

AsthmaOscillometrySpirometryAdultFemaleForced Expiratory VolumeHumansMaleMiddle AgedRetrospective StudiesROC Curveassessmentasthma controldiagnosticimpulse oscillometryspirometry

Identifiers

PMID40700056

DOI10.3390/arm93040025

PMCPMC12285965

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