Measures of reversibility in response to bronchodilators in chronic airflow obstruction: relation to airway calibre.
Open Access
- 1 January 1991
- Vol. 46 (1) , 43-45
- https://doi.org/10.1136/thx.46.1.43
Abstract
A study was carried out to examine the independence from starting prebronchodilator FEV1 of four indices commonly used to express airflow (FEV1) reversibility in response to bronchodilators. In 121 patients with chronic airflow obstruction with a mean prebronchodilator FEV1 of 1.81 (43.9% of predicted values) the change in FEV1 expressed as a percentage of the patient's predicted FEV1 was the least dependent on starting FEV1. Reversibility, expressed as a percentage of the prebronchodilator value or as a percentage of the maximal possible increase (predicted minus starting FEV1) was correlated with starting FEV1.Keywords
This publication has 4 references indexed in Scilit:
- Corticosteroid trials in non-asthmatic chronic airflow obstruction: a comparison of oral prednisolone and inhaled beclomethasone dipropionate.Thorax, 1990
- Short term variability in FEV1 and bronchodilator responsiveness in patients with obstructive ventilatory defects.Thorax, 1987
- INDEPENDENT INFLUENCE OF REVERSIBILITY OF AIR-FLOW OBSTRUCTION AND NONSPECIFIC HYPERREACTIVITY ON THE LONG-TERM COURSE OF LUNG-FUNCTION IN CHRONIC AIR-FLOW OBSTRUCTIONPublished by Elsevier ,1986
- Prognosis in Chronic Obstructive Pulmonary Disease1–3American Review of Respiratory Disease, 1986