Impulse oscillometry, an aid or a substitute?

Elkolaly, Reham M.; Ganna, Salwa A.; Nada, Doaa Waseem; Elnaggar, Mohammed H.

doi:10.4103/ejb.ejb_98_18

Cited by 4 publications

(2 citation statements)

References 39 publications

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“…A Japanese study conducted by Mikamo et al 61 showed that oscillometry may be a useful tool in assessment of small airways disease in interstitial lung disease. A very recent study, conducted by Reham et al, 62 studied correlations between oscillometry and spirometry on patients diagnosed with rheumathoid arthritis accociating ILD, and concluded that IOS can be used as an early screening technique to identify proximal and distal pulmonary tissue affection even before spirometry changes appear. Furthermore it facilitates the selection of patients needing further investigations to confirm the cause of increased lung resistance.…”

Section: Clinical Applicationsmentioning

confidence: 99%

<p>Lung Function Assessment by Impulse Oscillometry in Adults</p>

Porojan-Suppini¹,

Fira-Mlădinescu²,

Marc³

et al. 2020

TCRM

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Over the past decades, impulse oscillometry (IOS) has gained ground in the battery of pulmonary function tests. Performing the test requires minimal cooperation of the patient; therefore, it is a useful tool, especially in evaluating lung mechanics in children, elderly patients, and those who cannot perform spirometry. Oscillometry has also been used in both clinical and research departments. Studies were published mainly in asthma regarding detection of bronchodilator response and the therapeutic response to different drugs. Furthermore, it has been shown to be a sensitive technique to evaluate disease control. Other studied diseases were COPD, interstitial lung diseases, small airway disease, impairment of lung function due to exposure to occupational hazards or smoking, central airways obstruction, cystic fibrosis, monitoring lung mechanics during mechanical ventilation and sleep, neuromuscular diseases, lung transplant, and graft function. The aim of this review is to present the utility of oscillometry on the previously mentioned clinical fields.

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Section: Clinical Applicationsmentioning

confidence: 99%

<p>Lung Function Assessment by Impulse Oscillometry in Adults</p>

Porojan-Suppini¹,

Fira-Mlădinescu²,

Marc³

et al. 2020

TCRM

View full text Add to dashboard Cite

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“…However, in patients with abnormal lung function, spirometry may be more sensitive than IOS to detect patients with clinical symptoms and CT lesions 26 . It can detect lung involvement in patients with ILDs who have mild or even normal spirometry changes 27 . Our findings showed that IOS parameters, especially X 5 value, were associated with some qCT-derived DRV%s.…”

Section: Discussionmentioning

confidence: 99%

Relation of impulse oscillometry and spirometry with quantitative thorax computed tomography after COVID-19 pneumonia

ŞAHİN

Satar

Ergün

2023

Rev. Assoc. Med. Bras.

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SUMMARY OBJECTIVE: This study aimed to investigate if there is any correlation between the quantitative computed tomography and the impulse oscillometry or spirometry results of post-COVID-19 patients. METHODS: The study comprised 47 post-COVID-19 patients who had spirometry, impulse oscillometry, and high-resolution computed tomography examinations at the same time. The study group consisted of 33 patients with quantitative computed tomography involvement, while the control group included 14 patients who did not have CT findings. The quantitative computed tomography technology was used to calculate percentages of density range volumes. The relationship between percentages of density range volumes for different quantitative computed tomography density ranges and impulse oscillometry-spirometry findings was statistically analyzed. RESULTS: In quantitative computed tomography, the percentage of relatively high-density lung parenchyma, including fibrotic areas, was 1.76±0.43 and 5.65±3.73 in the control and study groups, respectively. The percentages of primarily ground-glass parenchyma areas were found to be 7.60±2.86 and 29.25±16.50 in the control and study groups, respectively. In the correlation analysis, the forced vital capacity% predicted in the study group was correlated with DRV% [(-750)-(-500)] (volume of the lung parenchyma that has density between (-750)-(-500) Hounsfield units), but no correlation with DRV% [(-500)-0] was detected. Also, reactance area and resonant frequency were correlated with DRV% [(-750)-(-500)] , while X 5 was correlated with both DRV% [(-500)-0] and DRV% [(-750)-(-500)] density. Modified Medical Research Council score was correlated with predicted percentages of forced vital capacity and X 5 . CONCLUSION: After COVID-19, forced vital capacity, reactance area, resonant frequency, and X 5 correlated with the percentages of density range volumes of ground-glass opacity areas in the quantitative computed tomography. X 5 was the only parameter correlated with density ranges consistent with both ground-glass opacity and fibrosis. Furthermore, the percentages of forced vital capacity and X 5 were shown to be associated with the perception of dyspnea.

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