نتایج جستجو برای: impulse oscillometry
تعداد نتایج: 24138 فیلتر نتایج به سال:
BACKGROUND We previously showed that impulse oscillometry (IOS) indices of peripheral airway function are associated with asthma control in children. However, little data exist on whether dysfunction in the peripheral airways can predict loss of asthma control. OBJECTIVE We sought to determine the utility of peripheral airway impairment, as measured by IOS, in predicting loss of asthma contro...
Clinical trials in patients with airway diseases often use forced expiratory volume in 1 s (FEV1) as the sole physiological outcome measure. However, FEV1 is thought to be insensitive to obstruction of the smaller airways, which may be particularly relevant in asthma [1]. Putative markers of small airway obstruction include measures of airway resistance using impulse oscillometry (IOS) [2] and ...
Relationship between small airway function and health status, dyspnea and disease control in asthma.
BACKGROUND Small airways play important roles in the pathophysiology of asthma. However, relationships between small airway involvement and health status and dyspnea have not been investigated. OBJECTIVES It was the aim of this study to assess the relationships between proximal and peripheral airway functions and health status, dyspnea and disease control in patients with asthma, using impuls...
PURPOSE High-sensitivity assays enabled the identification of C-reactive protein (hs-CRP) at levels that were previously undetectable. We aimed to determine if hs-CRP could reflect airway inflammation in children, by comparing hs-CRP with spirometry and impulse oscillometry (IOS) parameters and symptomatic severities. MATERIALS AND METHODS A total of 276 asthmatic children who visited Severan...
BACKGROUND The forced oscillation technique (FOT) is useful for studying pulmonary function in children, as well as in school children with asthma. However, the standard values for respiratory resistance (Rrs) in Asian school children remain unknown. We evaluated the standard Rrs using a type of FOT, impulse oscillometry (IOS), in healthy Japanese children at elementary and junior high schools....
BACKGROUND Previous reports suggest that the peripheral airways are associated with asthma control. Patient history, although subjective, is used largely to assess asthma control in children because spirometric results are many times normal values. Impulse oscillometry (IOS) is an objective and noninvasive measurement of lung function that has the potential to examine independently both small- ...
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