منابع مشابه
Bronchodilator responsiveness: interpret with caution.
Bronchodilator responsiveness (BDR) is widely considered to be a key diagnostic criterion for asthma, and is used to differentiate asthma from chronic obstructive pulmonary disease (COPD). Currently, the threshold of a 12% increase in FEV1 from baseline following inhaled salbutamol, with at least a 200 ml increase in absolute terms, is recommended as a response indicative of asthma, although re...
متن کاملBronchodilator responsiveness in patients with COPD.
The degree of acute improvement in spirometric indices after bronchodilator inhalation varies among chronic obstructive pulmonary disease (COPD) patients, and depends upon the type and dose of bronchodilator and the timing of administration. Acute bronchodilator responsiveness at baseline was examined in a large cohort of patients with moderate-to-very-severe COPD participating in the Understan...
متن کاملBronchodilator testing: an endless story.
T he history of the bronchodilator test dates back to the late 1950s when airway diseases were classified as reversible or irreversible depending on the response to bronchodilators [1, 2]. The hope to differentiate asthma from chronic obstructive pulmonary disease (COPD) on this basis was such that the test soon gained popularity in clinical practice. Two large trials published in the mid 1980s...
متن کاملBronchodilator Responsiveness and Reported Respiratory Symptoms in an Adult Population
BACKGROUND The relationship between patient-reported symptoms and objective measures of lung function is poorly understood. AIM To determine the association between responsiveness to bronchodilator and respiratory symptoms in random population samples. METHODS 4669 people aged 40 years and older from 8 sites in Canada completed interviewer-administered respiratory questionnaires and perform...
متن کاملBronchodilator responsiveness and atopy in 5-10-yr-old coughers.
Cough-variant asthma is considered by some to be an asthma phenotype. Bronchodilator responsiveness (BDR) is an undisputed feature of asthma. Of school-aged wheezers, 90% are atopic. Are school-aged coughers who demonstrate BDR also atopic? If so, then it would be reasonable to reserve the diagnosis cough-variant asthma for this particular group. Airway resistance was measured by the interrupte...
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ژورنال
عنوان ژورنال: European Respiratory Journal
سال: 2019
ISSN: 0903-1936,1399-3003
DOI: 10.1183/13993003.02104-2019