Usefulness of Impulse Oscillometry in Predicting the Severity of Bronchiectasis

Autor: Ji Soo Choi, Se Hyun Kwak, Min Chul Kim, Chang Hwan Seol, Seok-Jae Heo, Sung Ryeol Kim, Eun Hye Lee
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Tuberculosis and Respiratory Diseases, Vol 87, Iss 3, Pp 368-377 (2024)
Druh dokumentu: article
ISSN: 1738-3536
2005-6184
DOI: 10.4046/trd.2023.0160
Popis: Background Bronchiectasis is a chronic respiratory disease that leads to airway inflammation, destruction, and airflow limitation, which reflects its severity. Impulse oscillometry (IOS) is a non-invasive method that uses sound waves to estimate lung function and airway resistance. The aim of this study was to assess the usefulness of IOS in predicting the severity of bronchiectasis. Methods We retrospectively reviewed the IOS parameters and clinical characteristics in 145 patients diagnosed with bronchiectasis between March 2020 and May 2021. Disease severity was evaluated using the FACED score, and patients were divided into mild and moderate/severe groups. Results Forty-four patients (30.3%) were in the moderate/severe group, and 101 (69.7%) were in the mild group. Patients with moderate/severe bronchiectasis had a higher airway resistance at 5 Hz (R5), a higher difference between the resistance at 5 and 20 Hz (R5−R20), a higher resonant frequency (Fres), and a higher area of reactance (AX) than patients with mild bronchiectasis. R5 ≥0.43, resistance at 20 Hz (R20) ≥0.234, R5−R20 ≥28.3, AX ≥1.02, reactance at 5 Hz (X5) ≤−0.238, and Fres ≥20.88 revealed significant univariable relationships with bronchiectasis severity (p
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