The utility of the forced oscillation technique in assessing bronchodilator responsiveness in patients with asthma☆
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Keywords
Airway obstruction
Asthma
Bronchodilator
Forced oscillation
Impulse oscillometry system (IOS)
Abbreviation
FOT
forced oscillometry technique
IOS
impulse oscillometry system
Rrs5 and Rrs20
the respiratory resistance at 5 and 20 Hz
respectively (R5 and R20)
Rrs5–20
the mean respiratory resistance between 5 and 20 Hz
Grs5–20
the total respiratory conductance
the reciprocal of Rrs5–20
FEV1
forced expiratory volume in 1 s
PEF
peak expiratory flow
GEE analysis
generalized estimating equation analysis
COPD
chronic obstructive pulmonary disease
ATS
American Thoracic Society
ERS
European Respiratory Society
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The abstract of this article was presented at the American College of Chest Physicians 2004 Seattle: Yaegashi M, Akerman MJ, Yamalanchili VAK, Kaza V, Weedon J, Heurich AE. “The Utility of Forced Oscillation Technique (FOT) to Assess Bronchodilator Responsiveness in Patients with Asthma” Chest 2004; 126S (4): 796. All abbreviations of FOT measurements were based on the ones used in the recommendation from ERS task force.
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