Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1992-3-23
pubmed:abstractText
Pulmonary distensibility, lung volume and conductance were measured in 14 men (mean age 22 (SD 3) years) who suffered pulmonary barotrauma (PBT) during shallow water diving. Exponential analysis of static pressure-volume date obtained during deflation of the lungs gave K, and index of distensibility. The pulmonary conductance-recoil pressure (GL-PL) relationship was also obtained during deflation. Total lung capacity (TLC) was measured in a body plethysmograph or by nitrogen washout. The results were compared with 34 male nonsmokers and 10 healthy male divers. Mean lung volumes and FEV1 did not differ significantly in the three groups. In the PBT group K was decreased and recoil pressure was increased; the slope of the regression of GL and PL was decreased indicating stiffer airways. Decreased K reflects a decreased airspace size. Smaller airspaces increase the surface component of recoil pressure which increases the stress in tissue fibres. Relatively stiff airways may magnify the elastic stresses in peribronchial alveolar tissue increasing the possibility of rupture of alveolar walls with interstitial gas dissection.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0034-5687
pubmed:author
pubmed:issnType
Print
pubmed:volume
86
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
293-303
pubmed:dateRevised
2009-11-11
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Decreased pulmonary distensibility and pulmonary barotrauma in divers.
pubmed:affiliation
Department of Medicine, University of New South Wales, Prince Henry Hospital, Australia.
pubmed:publicationType
Journal Article