Linked Life Data

2252745

Source:http://linkedlifedata.com/resource/pubmed/id/2252745

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1991-1-22
pubmed:abstractText
Left ventricular assist device (LVAD) pumping has hemodynamic and anatomic influences on right ventricular performance. A total artificial heart (TAH) model was employed to better understand the hemodynamic influence of an LVAD on the failing right ventricle. Biventricular failure was simulated by reducing both ventricular drive pressures of the TAH. After getting hemodynamic data, LVAD pumping in the case of right ventricular failure was simulated by increasing just the left ventricular drive pressure. In the LVAD-simulating condition, cardiac output increased and right atrial pressure decreased significantly (p less than 0.05) compared with the biventricular failure condition, whereas right ventricular function and minute work were the same in these two conditions. Even though changes were accompanied by adaptive increases in pulmonary resistance, substantially lower pulmonary artery and left atrial pressures resulted in the LVAD-simulating condition. From a hemodynamic perspective, these results indicate that an LVAD can increase right ventricular volume work by decreasing right ventricular pressure work, whereas right ventricular net pressure-volume work is unchanged and right ventricular failure is not worsened.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
0889-7190
pubmed:author
pubmed:issnType
Print
pubmed:volume
36
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
M538-41
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:articleTitle
Hemodynamic influence of LVAD on right ventricular failure.
pubmed:affiliation
Artificial Heart Research Laboratory, University of Utah, Salt Lake City 84103.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.