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. 2024 Jun 25;7(6):e2191.
doi: 10.1002/hsr2.2191. eCollection 2024 Jun.

Impulse oscillometry in patients with persistent post-COVID-19 symptoms: A retrospective study

Chun-Yu Lu  1 , Sheng-Hao Lin  1   2 , Chun-Min Chen  3
Affiliations

Impulse oscillometry in patients with persistent post-COVID-19 symptoms: A retrospective study

Chun-Yu Lu et al. Health Sci Rep. .

Abstract

Introduction: Impaired lung function has been observed in patients following COVID-19 infection, with studies reporting persistent lung volume and diffusing capacity impairments. Some studies have demonstrated significantly higher small airway resistance in COVID-19 positive cases. This retrospective study aims to examine impulse oscillometry (IOS) data of patients with persistent symptoms after COVID-19 infection, focusing on the relationship between time and symptoms.

Material and method: The study analyzed data from adult patients with persistent symptoms who underwent IOS testing within and after 84 days from the diagnosis date.

Result: The results showed that patients within 84 days and those between 31 and 84 days had higher small airway resistance values, indicating peripheral airway disease. Patients with dyspnea exhibited higher IOS values compared to those with cough symptoms, suggesting more significant impairment in the peripheral airways.

Conclusion: The study highlights the importance of using comprehensive diagnostic tools like IOS to assess respiratory impairments in post-COVID-19 patients, particularly in the small airways. Understanding the relationship between time and symptoms can provide valuable insights for the treatment of peripheral airway dysfunction in post-COVID-19 patients.

Keywords: COVID‐19; impulse oscillometry; lung function; post‐COVID‐19 symptoms; small airways.

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Conflict of interest statement

The authors declare no conflict of interest.

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References

    1. Sonnweber T, Sahanic S, Pizzini A, et al. Cardiopulmonary recovery after COVID‐19—an observational prospective multi‐center trial. Eur Respir J. 2020;57:2003481. - PMC - PubMed
    1. Huang C, Huang L, Wang Y, et al. RETRACTED: 6‐month consequences of COVID‐19 in patients discharged from hospital: a cohort study. The Lancet. 2021;397:220‐232. 10.1016/S0140-6736(20)32656-8 - DOI - PMC - PubMed
    1. Tamminen P, Kerimov D, Viskari H, Aittoniemi J, Syrjänen J, Lehtimäki L. Lung function during and after acute respiratory infection in COVID‐19 positive and negative outpatients. Eur Respir J. 2022;59:2102837. - PMC - PubMed
    1. Suppini N, Oancea C, Fira‐Mladinescu O, et al. Post‐Infection oscillometry and pulmonary metrics in SARS‐CoV‐2 patients: a 40‐day follow‐up study. Diseases. 2023;11(3):102. - PMC - PubMed
    1. Mogami R, Araújo Filho RC, CoboChantong CG, et al. The importance of radiological patterns and small airway disease in long‐term follow‐up of postacute COVID‐19: a preliminary study. Radiol Res Pract. 2022;2022:7919033. - PMC - PubMed

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