Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2001-12-25
pubmed:abstractText
This review emphasizes the mechanisms responsible for maximum expiratory airflow limitation in acute and chronic persistent asthma. The phenomenon of acute but reversible loss of lung elastic recoil during acute asthma is reviewed, although no plausible physiologic explanations are offered. The authors have recently studied adult chronic, stable asthmatics with persistent forced expiratory volume in 1 second less than 80% predicted, despite optimal polytherapy. The asthmatics had unsuspected marked loss of lung elastic recoil in the absence of emphysema that was responsible for a 32 to 35% reduction in maximum expiratory airflow at 80% total lung capacity and a 28 to 60% reduction in maximum expiratory airflow at 70% total lung capacity. Work in progress indicates that persistent reduced maximum expiratory airflow may be present for at least 12 +/- 4 years (mean +/- SD) and suggests possible early loss of lung elastic recoil. These observations provide a challenge to the concept of intrinsic airway narrowing resulting from airway remodeling as the major cause of expiratory maximum expiratory airflow limitation in chronic, moderate asthma and severe, persistent asthma. No morphologic or physiologic abnormalities readily explain the chronic, persistent loss of lung recoil.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1070-5287
pubmed:author
pubmed:issnType
Print
pubmed:volume
8
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
50-3
pubmed:dateRevised
2005-11-16
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Lung elastic recoil in acute and chronic asthma.
pubmed:affiliation
Department of Medicine, Lakewood Regional Medical Center, Lakewood, CA 90712, USA. afgelb@msn.com
pubmed:publicationType
Journal Article, Review