Predicted values for the forced expiratory flow adjusted for forced vital capacity, a descriptive study
نویسندگان
چکیده
منابع مشابه
Normal values of forced vital capacity (FVC), forced expiratory volume (FEV 1-0), and peak flow rate (PFR) in children.
In children, the respiratory tract is probably more often affected by disease than any other system of the body. In spite of this, quantitative methods of evaluation are seldom used outside special respiratory units. No clinician would manage a patient with potential renal failure without laboratory aids, even if it were only an estimation of the blood urea, but he would seldom give children wi...
متن کاملIs forced expiratory volume in six seconds a valid alternative to forced vital capacity?
We have read with interest the article by HANSEN et al. [1] in a recent issue of the European Respiratory Journal, stating that the use of forced expiratory volume in six seconds (FEV6) reduces the sensitivity of obstructive lung disease detection. Their study population of 3,515 current smokers, with a 17.5% prevalence of obstruction, found a sensitivity of only 76.8% and a specificity of 98.2...
متن کاملSources 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 کاملShould forced expiratory volume in six seconds replace forced vital capacity to detect airway obstruction?
It has been suggested that forced expiratory volume in six seconds (FEV(6)) should be substituted for forced vital capacity (FVC) to measure fractions of timed expired volume for airflow obstruction detection. The present authors hypothesised that this recommendation might be questionable because flow after 6 s of forced expiration from more diseased lung units with the longest time constants w...
متن کاملCan peak expiratory flow be measured accurately during a forced vital capacity manoeuvre?
Spirometry and peak flow measurements traditionally depend on different forced expiratory manoeuvres and have usually been performed on separate, dedicated equipment. As spirometry becomes more widely used in primary care settings, the authors wished to determine whether there was a systematic difference between peak expiratory flow (PEF) derived from a short sharp exhalation (PEF manoeuvre) an...
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ژورنال
عنوان ژورنال: ERJ Open Research
سال: 2020
ISSN: 2312-0541
DOI: 10.1183/23120541.00426-2020