Evaluation of Respiratory Impedance in Asthma and COPD by an Impulse Oscillation System
نویسندگان
چکیده
منابع مشابه
Evaluation of respiratory impedance in asthma and COPD by an impulse oscillation system.
OBJECTIVE The purpose of this study was to clarify the differences in physiological properties of the airways between asthma and COPD using an impulse oscillation system (IOS). PATIENTS AND METHODS Subjects comprised 95 stable COPD patients, 52 never-smoker asthma patients and 29 healthy never-smokers >60 years old, all matched for age, in whom respiratory impedance was examined by IOS. RES...
متن کاملEvaluation of respiratory impedance in patients with chronic obstructive pulmonary disease by an impulse oscillation system.
An impulse oscillometry system (IOS) assesses pulmonary resistance and reactance. The present study investigated which IOS measurement is correlated with airflow obstruction, airway conductance and lung volume in chronic obstructive pulmonary disease (COPD). A total of 180 patients with COPD were selected and 95 agreed to follow‑up 1 year after the initial tests. IOS measurements [R5, R20, X5 a...
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Association between respiratory impedance measured by forced oscillation technique and exacerbations in patients with COPD
Background It is well known that increased airflow limitation as measured by spirometry is associated with the risk of exacerbation in patients with COPD. The forced oscillation technique (FOT) is a noninvasive method used to assess respiratory impedance (resistance and reactance) with minimal patient cooperation required. The clinical utility of the FOT in assessing the risk of exacerbations o...
متن کاملImpact of exacerbations on respiratory system impedance measured by a forced oscillation technique in COPD: a prospective observational study
BACKGROUND Forced oscillation technique (FOT) has been reported to be useful in the evaluation and management of obstructive lung disease, including COPD. To date, no data are available concerning long-term changes in respiratory system impedance measured by FOT. Additionally, although exacerbations have been reported to be associated with excessive lung function decline in COPD, the impact of ...
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ژورنال
عنوان ژورنال: Internal Medicine
سال: 2010
ISSN: 0918-2918,1349-7235
DOI: 10.2169/internalmedicine.49.2191