Linked Life Data

6303995

Source:http://linkedlifedata.com/resource/pubmed/id/6303995

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1983-7-8
pubmed:abstractText
Previous investigations suggest that ventilation-perfusion (VA/Q) relationships after hemorrhagic shock are primarily dependent on regional distribution of pulmonary blood flow and implicated early VA/Q heterogeneity secondary to disproportionate redistribution of pulmonary blood flow to dependent lung regions. Multiple inert gas elimination analysis, as described by Wagner et al. (J. Appl. Physiol.: Respirat. Environ. Exercise Physiol. 36: 588-599, 1974), was applied to a standard hemorrhagic shock preparation to test this hypothesis. Soon after hemorrhage, VA/Q distributions shifted homogeneously into high VA/Q compartments, preserving base-line VA/Q relationships around a new mean VA/Q ratio. Although the mean VA/Q and VA/Q distribution returned to base line after resuscitation with autologous blood, absolute dead space ventilation persisted. Gas exchange defects included increased Bohr dead space ventilation, which could be attributed to 1) a homogeneous shift of VA/Q distributions into high VA/Q compartments, and 2) new absolute dead space ventilation associated with observed intravascular leukostasis and vascular occlusion. In contrast to previous investigations, these data suggest that VA/Q heterogeneity does not occur after hemorrhage, but rather pulmonary blood flow decreases proportionately throughout all lung regions, preserving base-line VA/Q patterns around a new mean VA/Q ratio.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0161-7567
pubmed:author
pubmed:issnType
Print
pubmed:volume
54
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1131-40
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
Ventilation-perfusion relationships after hemorrhage and resuscitation: an inert gas analysis.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't