Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1987-8-5
pubmed:abstractText
Positive end-expiratory pressure (PEEP) is widely used in the treatment of severe pulmonary oedema, although its effects on the clearance of water and small solutes from alveolus to blood are not well characterized. We studied the effect of the application of 10 cmH2O of PEEP on the flux of inhaled 99mTc-diethylene-triamine-penta-acetic acid (DTPA) from lung to blood in six healthy smoking and six nonsmoking subjects. The rate of flux was corrected for possible changes in pulmonary blood volume during PEEP by use of an intravenous injection of 99mTc-DTPA. The baseline clearance rate (K, % X min-1) for nonsmokers was 1.48 +/- 0.12 (mean +/- SE) and increased to 2.40 +/- 0.29 during PEEP (p less than 0.05). In contrast, the mean clearance rate for smokers was 3.26 +/- 0.82 at baseline and 3.03 +/- 0.82 during PEEP (p = NS). The application of positive end-expiratory pressure appears to increase alveolar solute flux in nonsmokers but not in smokers, suggesting that the pathway for solute clearance in smokers is governed by different rate-limiting steps to those of nonsmokers.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0395-3890
pubmed:author
pubmed:issnType
Print
pubmed:volume
23
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
57-60
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:articleTitle
Positive end-expiratory pressure increases pulmonary clearance of inhaled 99mTc-DTPA in nonsmokers but not in healthy smokers.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't