The Role of Impulse Oscillometry in Detection of Preserved Ratio Impaired Spirometry (PRISm).

IF 1.8 Q3 RESPIRATORY SYSTEM

Advances in respiratory medicine Pub Date : 2025-01-27 DOI:10.3390/arm93010002

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

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引用次数: 0

Abstract

Background: Information is limited regarding the role of impulse oscillometry (IOS) for the detection of preserved ratio impaired spirometry (PRISm). Therefore, we aimed to study the diagnostic ability of IOS in differentiating between PRISm and healthy subjects.

Methods: This retrospective data collection was done at the Lung Health Center, Faculty of Medicine, Chiang Mai University, Thailand between July 2019 and April 2022. The potential diagnostic possibilities of difference in resistance at 5 Hz (R5) and resistance at 20 Hz (R20) (R5-R20) for PRISm detection were analyzed.

Results: The prevalence of PRISm was higher when using the fixed ratio (FR) criteria (FEV₁/FVC ≥0.7 with FEV₁ < 80% of predicted value) compared to the lower limit of normal (LLN) criteria (FEV₁/FVC ≥ LLN and FEV₁ < LLN) (10.0% vs. 4.2%). The %prediction for R5-R20 provided an acceptable area under the curve (AUC) for PRISm, defined by the LLN and the FR criteria (AuROC = 0.75 (95%CI; 0.64, 0.85) and 0.72 (95%CI; 0.63, 0.81), respectively). The cut-off value of %predicted R5-R20 ≥120% resulted in the highest sensitivity and specificity for detecting PRISm.

Conclusions: The %predicted of R5-R20 ≥ 120% showed an acceptable performance for PRISm detection and PRISm may be detected by IOS.

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脉冲振荡测量法在检测保存比率受损肺活量（PRISm）中的作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advances in respiratory medicine RESPIRATORY SYSTEM-

CiteScore

2.60

自引率

0.00%

发文量

期刊介绍： "Advances in Respiratory Medicine" is a new international title for "Pneumonologia i Alergologia Polska", edited bimonthly and addressed to respiratory professionals. The Journal contains peer-reviewed original research papers, short communications, case-reports, recommendations of the Polish Respiratory Society concerning the diagnosis and treatment of lung diseases, editorials, postgraduate education articles, letters and book reviews in the field of pneumonology, allergology, oncology, immunology and infectious diseases. "Advances in Respiratory Medicine" is an open access, official journal of Polish Society of Lung Diseases, Polish Society of Allergology and National Research Institute of Tuberculosis and Lung Diseases.