Forced Expiratory Volume in 1 Second and Forced Vital Capacity in Bronchial Asthma Patients in Relation with Asthma Exercise
نویسندگان
چکیده
منابع مشابه
Sources of variation in forced expiratory volume in one second and forced vital capacity.
Published prediction equations for lung function differ considerably, but the components of population variation responsible for the differences are unknown. Data were analysed for 6,323 never-smoking adults who did not report wheeze or asthma, from 42 centres participating in the European Community Respiratory Health Survey. Means and components of variance were estimated for males and females...
متن کاملSuitability of forced expiratory volume in 1 second/forced vital capacity vs percentage of predicted forced expiratory volume in 1 second for the classification of asthma severity in adolescents.
OBJECTIVE To determine whether lung function alters asthma severity based on symptom history in asthmatic adolescents. DESIGN Data on asthma symptoms and lung function were collected from adolescents randomly selected from the general population. SETTING Five schools from the central Wellington, New Zealand, area during 2003 to 2005. PARTICIPANTS Two hundred twenty-four secondary school s...
متن کاملUse of forced vital capacity and forced expiratory volume in 1 second quality criteria for determining a valid test
The 2005 American Thoracic Society (ATS)/European Respiratory Society (ERS) spirometry guidelines define valid tests as having three acceptable blows and a repeatable forced vital capacity (FVC) and forced expiratory volume in 1 s (FEV1). The aim of this study was to determine how reviewer and computer-determined ATS/ERS quality could affect population reference values for FVC and FEV1. Spirome...
متن کاملA Simple Measure to Assess Hyperinflation and Air Trapping: 1-Forced Expiratory Volume in Three Second / Forced Vital Capacity
BACKGROUND Several recent studies have suggested that 1 minus-forced expiratory volume expired in 3 seconds / forced vital capacity (1-FEV3/FVC) may be an indicator of distal airway obstruction and a promising measure to evaluate small airways dysfunction. AIMS To investigate the associations of 1-FEV3/FVC with the spirometric measures and lung volumes that assess small airways dysfunction an...
متن کاملThe association of forced expiratory volume in one second and forced expiratory flow at 50% of the vital capacity, peak expiratory flow parameters, and blood eosinophil counts in exercise-induced bronchospasm in children with mild asthma
BACKGROUND Exercise-induced bronchoconstriction (EIB), which describes acute airway narrowing that occurs as a result of exercise, is associated with eosinophilic airway inflammation, bronchial hyperresponsiveness. The forced expiratory volume in one second (FEV1) is the most commonly used spirometric test in the diagnosis of EIB in exercise challenge in asthma. Other parameters such as forced ...
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ژورنال
عنوان ژورنال: Althea Medical Journal
سال: 2020
ISSN: 2337-4330
DOI: 10.15850/amj.v7n2.1781