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Expiratory Flow Limitation Definition, Mechanisms, Methods, and Significance
Author
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-03-28
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
When expiratory flow is maximal during tidal breathing and cannot be increased unless operative lung volumes move towards total lung capacity, tidal expiratory flow limitation (EFL) is said to occur.
EFL represents a severe mechanical constraint caused by different mechanisms and observed in different conditions, but it is more relevant in terms of prevalence and negative consequences in obstructive lung diseases and particularly in chronic obstructive pulmonary disease (COPD).
Although in COPD patients EFL more commonly develops during exercise, in more advanced disorder it can be present at rest, before in supine position, and then in seated-sitting position.
In any circumstances EFL predisposes to pulmonary dynamic hyperinflation and its unfavorable effects such as increased elastic work of breathing, inspiratory muscles dysfunction, and progressive neuroventilatory dissociation, leading to reduced exercise tolerance, marked breathlessness during effort, and severe chronic dyspnea.
American Psychological Association (APA)
Tantucci, Claudio. 2013. Expiratory Flow Limitation Definition, Mechanisms, Methods, and Significance. Pulmonary Medicine،Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-495725
Modern Language Association (MLA)
Tantucci, Claudio. Expiratory Flow Limitation Definition, Mechanisms, Methods, and Significance. Pulmonary Medicine No. 2013 (2013), pp.1-6.
https://search.emarefa.net/detail/BIM-495725
American Medical Association (AMA)
Tantucci, Claudio. Expiratory Flow Limitation Definition, Mechanisms, Methods, and Significance. Pulmonary Medicine. 2013. Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-495725
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-495725